Sept. 2, 2025

Is it Possible to Engineer Artificial Consciousness? | Karl Friston & Mark Solms

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Is it Possible to Engineer Artificial Consciousness? | Karl Friston & Mark Solms

Professors Karl Friston & Mark Solms, pioneers in the fields of neuroscience, psychology, and theoretical biology, delve into the frontiers of consciousness: "Can We Engineer Artificial Consciousness?". From mimicry to qualia, this historic conversation tackles whether artificial consciousness is achievable - and how. Essential viewing/listening for anyone interested in the mind, AI ethics, and the future of sentience. Subscribe to the channel for more profound discussions!Professor Karl Friston is one of the most highly cited living neuroscientists in history. He is Professor of Neuroscience at University College London and holds Honorary Doctorates from the University of Zurich, University of York and Radboud University. He is the world expert on brain imaging, neuroscience, and theoretical neurobiology, and pioneers the Free-Energy Principle for action and perception, with well-over 300,000 citations.

Professor Mark Solms is director of Neuropsychology in the Neuroscience Institute of the University of Cape Town and Groote Schuur Hospital (Departments of Psychology and Neurology), an Honorary Lecturer in Neurosurgery at the Royal London Hospital School of Medicine, an Honorary Fellow of the American College of Psychiatrists, and the President of the South African Psychoanalytical Association. TIMESTAMPS:(0:00) - Introduction (0:45) - Defining Consciousness & Intelligence(8:20) - Minimizing Free Energy + Maximizing Affective States(9:07) - Knowing if Something is Conscious(13:40) - Mimicry & Zombies(17:13) - Homology in Consciousness Inference(21:27) - Functional Criteria for Consciousness(25:10) - Structure vs Function Debate(29:35) - Mortal Computation & Substrate(35:33) - Biological Naturalism vs Functionalism(42:42) - Functional Architectures & Independence(48:34) - Is Artificial Consciousness Possible?(55:12) - Reportability as Empirical Criterion(57:28) - Feeling as Empirical Consciousness(59:40) - Mechanistic Basis of Feeling(1:06:24) - Constraints that Shape Us(1:12:24) - Actively Building Artificial Consciousness (Mark's current project)(1:24:51) - Hedonic Place Preference Test & Ethics(1:30:51) - ConclusionEPISODE LINKS:- Karl's Round 1: https://youtu.be/Kb5X8xOWgpc- Karl's Round 2: https://youtu.be/mqzyKs2Qvug- Karl's Lecture 1: https://youtu.be/Gp9Sqvx4H7w- Karl's Lecture 2: https://youtu.be/Sfjw41TBnRM- Karl's Lecture 3: https://youtu.be/dM3YINvDZsY- Mark's Round 1: https://youtu.be/qqM76ZHIR-o- Mark's Round 2: https://youtu.be/rkbeaxjAZm4CONNECT:- Website: https://tevinnaidu.com - Podcast: https://creators.spotify.com/pod/show/mindbodysolution- YouTube: https://youtube.com/mindbodysolution- Twitter: https://twitter.com/drtevinnaidu- Facebook: https://facebook.com/drtevinnaidu - Instagram: https://instagram.com/drtevinnaidu- LinkedIn: https://linkedin.com/in/drtevinnaidu=============================Disclaimer: The information provided on this channel is for educational purposes only. The content is shared in the spirit of open discourse and does not constitute, nor does it substitute, professional or medical advice. We do not accept any liability for any loss or damage incurred from you acting or not acting as a result of listening/watching any of our contents. You acknowledge that you use the information provided at your own risk. Listeners/viewers are advised to conduct their own research and consult with their own experts in the respective fields.

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Professor Mark Solms, Professor
Cole Friston, thank you so much

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for joining me one more time on
the show.

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You have both been part of the
show for so many years now and

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it's a privilege and honor for
me to host the both of you on

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the show together.
So thank you so much for joining

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me.
What I figured we'd do is my

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role will be very minimal.
I'll try to give prompts when

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needed if needed.
But for the most part, I think

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most of the people TuneIn to
listen and watch you guys and

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the topic today is something
we're we're all thinking about.

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We're all talking about it.
Is it possible to engineer

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artificial consciousness?
I think it's a fitting topic for

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the two of you, both pioneers in
this field.

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And I think to start this off,
we should begin with some

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foundational definitions.
How do you perhaps call you

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could begin.
How do you define intelligence

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and how do you define
consciousness?

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Right.
Well, that's I'll start off with

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the easy ones, then Mark can
take the the difficult ones.

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I'm being ironic.
So intelligence, well certainly

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natural intelligence is in my
world just inference.

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It's just sense making within an
inactive aspect.

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So there's also decision making
that's predicated on that sense

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making and therefore can be
described in terms of inference

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or self evidencing.
As Jacob Howard would like to

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say, it's from the physicist
perspective.

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This is a particular kind of
self organization or a

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particular reading of self
organization and a a particular

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petition into self and non self
or something and something else

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that has that can be
mathematically described as the

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Bayesian mechanics.
And that Bayesian mechanics, I

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repeat, can be interpreted in
terms of inferring the causes of

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your sensations and deciding
what to do in order to solicit

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the right kind of sensations to
engineer or author your own

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sensorium in order to make the
best sense of it, in order to

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make the best decision.
So there's a inherent circuit

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causality in the self
organization if you survive and

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you survive as an agent.
And for me, an agent would be a

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system that can be read as
possessing or acting as if it

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had a world or a generative
model of the consequences of its

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own actions.
So it has a a model of its own

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private future and it has to
select particular paths into the

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future.
So it's a future pointing kind

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of inference that is private to
the individual, the agent or the

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intelligent artefact in
question.

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Consciousness, I, I, you know,
you should be asking Mark this.

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So consciousness I think is, you
know, is something else,

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especially if you're talking
about phenomenology or feelings.

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And one would have to identify
the particular attributes of the

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generative models in play that
must be have this future

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pointing agentic aspect in order
to qualify and support either

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consciousness in a vague sense
that it could be different

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levels of consciousness.
Or if you want to draw a bright

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line between things that are
self aware or indeed are just

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aware in, in, in a, in a
phenomenal sense, you'd have to

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identify what parts of their
world model, equip them with the

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capacity to feel and to and to
experience.

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And then I'll I'll hand over to
Mark for what that particular

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architectural feature would be.
Thanks.

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Thanks, Tevin.
Thanks, Carl.

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Let me start by commenting on
your introductory remark, Tevin,

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that you're probably going to
say very little because people

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are interested in what Carl and
I have to say.

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I tell you, what worries me is
that, and, and this is going to

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be interesting from my point of
view if I'm wrong, but what

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worries me is that Carl and I
are going to agree on

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everything.
And so it therefore won't be

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very interesting to hear us
echoing each other, but maybe we

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won't.
And so, so let's see what

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happens.
But that's what I, what I

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anticipate.
And to, to illustrate the point,

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everything that Carl just said I
agree with, but I will try to,

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unlike Carl, us S Africans will
speak English instead of,

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instead of active inferees.
And also I'll try and I'll try

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and keep it simple.
To me, I mean, although I really

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do agree with everything that
Carl said, I, I, I, I don't

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think in such a complex
technical way as he does.

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So for me, the intelligence
which comes by degrees is

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capacity to solve problems.
And I of course, I understand

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why you're asking us these
questions.

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It's because you're setting up
the difference between

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artificial intelligence and and
artificial consciousness.

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So intelligence is the capacity
to solve problems.

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And those problems can be as
narrow as how to play chess, or

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it could be something much more
general.

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And that's, you know, that's the
where, where, where things get

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interesting.
And This is why I say

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intelligence, You know, it comes
in, in, in, in degrees.

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The current artificial
intelligences don't have that

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much intelligence because they
can only do very narrow things.

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Now consciousness, I define that
as the capacity to feel like

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something.
In other words, I followed

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Nagle's definition.
A system is conscious if and

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only if there's something it is
like to be such a system,

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something it is like for such a
system.

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And that's a very elementary
definition in, in both senses of

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the word.
Elementary in that it's simple,

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and elementary in that it's
talking about the most simple

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form of consciousness.
I mean, you don't need our human

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type of consciousness to to, to
meet that definition.

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You just have to be able to feel
like something.

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There's some quality, some
phenomenal experiential property

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to being a thing that is
conscious.

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It doesn't have to be able to
reflect upon it.

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It doesn't even have to know
that it is a thing in the sense

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of having any consciousness of
that of its own being.

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It just has to feel like
something to be it.

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But I hasten to add, because
this is what leads to so much

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confusion, that of course there
are there are layers upon layers

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of complexity that can be super
added to feeling.

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And then you get things like
human consciousness, which

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unfortunately too many people,
even people in our field take as

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their kind of model example.
It's it's what they have in mind

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when they use the word.
And I think that this is

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unfortunate.
Mark But I, I completely agree

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and I think that's part of the
reason why I wanted you guys to

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chat is it's because I'm not the
listeners are quite familiar

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with the story, but when I wrote
my dissertation, you and Carl

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were cited many times and often
times together in the same

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paper.
So it makes a lot of sense that

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you guys would think alike.
But I think it's still going to

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be valuable and I think people
are going to take a lot away

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from this.
With that being said, Carl, you

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have the free energy principle,
which describes adaptive systems

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and minimizing surprise.
And then Mark, you place affect

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or feeling at the very core of
conscious experience with if we

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were to design a system that
does both, let's say minimizes

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free energy and generates active
effective states, sorry, would

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that system be conscious or
would this be via mimicry?

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Or would this be a what?
Mimicry.

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So something that that makes
consciousness.

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So who?
Who?

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Who are you asking that?
Question, would you like to

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stop?
Oh, right, yes.

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So I think before trying to give
you an answer to that question,

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I think it's important to to
state before we go any further

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that consciousness, however read
is not something that you can

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know of something else.
I mean, you know, common sense

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tells you that is true, but it's
also mathematically true under

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the free energy principle in the
sense that the only things you

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can read about the internal
machinations of an agent are

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exposed on their mark off
blanket or on their, well,

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specifically the states that act
upon the world because you are

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part of the world from the point
of view of the agent.

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So you can only ever infer
something is conscious and that

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requires the observer.
So what I'm doing is developing

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a very observational relational
position just to acknowledge

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you.
You will never know which is

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going to be interesting in
relation to machine

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consciousness.
So that that means that, you

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know, the observer has to have
the fantasy, the hypothesis, the

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construct as part of their
explanatory repertoire to make

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the inference that this thing
IEU is conscious.

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So that puts a special, if you
like it, contextualises, I

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think, discussions about
consciousness.

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Only conscious artefacts can
ever recognise consciousness in

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another, and that recognition is
just another act of

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intelligence.
It's just an act of inference.

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It's an explanation.
You know, this explanation that

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this thing is conscious in the
sense that I am conscious is a

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good enough explanation to
explain all the observable

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behaviour.
So there is no ground truth

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here.
And I think that sort of takes

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up a lot of pressure of what
could become quite toxic

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arguments and certainly machine
consciousness and machine

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welfare.
You cannot adopt A

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fundamentalist position on
consciousness because by

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definition you will never know.
But it also means that these

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debates about machine
consciousness or aspirations to

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build or discussions about could
1 build machine consciousness

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can only be had by people who
subscribe to the notion that

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consciousness is a suitable
fantasy or hypothesis to explain

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certain kinds of self
organization.

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I probably wanted a bit off
point there, but I I enjoyed

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making that point.
But can you remind me what your

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question was?
And so if we were to design a

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system that minimizes free
energy and and effective states,

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is this a conscious system?
Yeah.

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Well, I mean, so you know, from
the point of view of what I've

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just said, yes and no.
Yeah, it will, if it mimics

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consciousness to a suitably
accurate extent, you will

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certainly infer it is conscious
and that's as far as anybody

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could go.
So, you know, just to make this

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really, really, really concrete,
you know, I'm, I'm pretty sure

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that you're conscious.
Pretty sure, you know, you know,

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I can't be 100% sure, but I, I
could certainly put a sort of

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base incredible interval around
it.

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And, you know, and it would be
all the evidence would be very,

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very strong with a base factor
of, say, above 5.

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What about a microbe living in
your gut?

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You know, I'm not so sure.
It might be some, you know, in

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some sort of pan psychic or some
very elemental sense.

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But now my confidence in the
inference that the microbe is

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conscious is sufficiently small
that I have no qualms about

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poisoning it with antibiotics,
whereas I would have great

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qualms about poisoning you
because you are sufficiently

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like me to provide enough
evidence that you might be

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conscious, you know, like, like
I am.

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So I think I wouldn't decry
mimicry.

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You know, mimicry is just
reproducing the kind of evidence

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that that satisfies a particular
hypothesis that is the basis of

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inference.
So to if you are sufficiently

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good mimic, then you know to all
intents and purposes, under the

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condition that you can only
infer something is conscious,

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yes, it would be conscious.
Mark, anything about that you'd

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like to add on?
Yes, I, I want to first of all

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reiterate what I said at the
beginning.

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I'm looking forward to learning
whether there's anything on this

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00:13:46,080 --> 00:13:48,520
topic that Carl and I disagree
about.

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And, and I mean that seriously,
you know, I, I, I would be very

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keen to know if there is
anything we disagree about so

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00:13:57,040 --> 00:14:02,400
far not but, but I, you know, I,
I'd come at things in a slightly

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00:14:02,400 --> 00:14:05,920
different way from Carl.
And so let me, let me address

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the same question in my own way.
And, and I will, I will

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00:14:11,520 --> 00:14:15,680
emphasize, well, I will, I will
culminate my, my, what I say

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00:14:15,680 --> 00:14:19,440
will, it leads me to say
something about mimicry because

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I think that's the, that's the
crux of your question.

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00:14:23,400 --> 00:14:26,240
Because the way that you've
formulated your question before

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00:14:26,240 --> 00:14:29,120
you use the word mimicry, I
thought, well, it's a sort of,

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00:14:29,520 --> 00:14:31,880
you know, the, the, the question
answers itself.

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00:14:31,920 --> 00:14:36,280
You know, when you say if you
have a free energy, free energy

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00:14:36,280 --> 00:14:42,720
minimizing system functioning by
active inference on the basis of

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00:14:42,720 --> 00:14:46,360
its generative model, etcetera,
etcetera, and it also has

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affect, you said then would it
be conscious?

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00:14:49,400 --> 00:14:52,200
And I thought, well, if it has
affect, yes, of course it's

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00:14:52,200 --> 00:14:54,800
conscious.
Because as I just said earlier,

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for me, you know, the, the, the
most basic form of consciousness

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is feeling.
In other words, affect.

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I like the word feeling because
it leaves one in no doubt that

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it's something that must be
conscious.

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00:15:06,800 --> 00:15:08,600
You can't have a feeling that
you don't feel.

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So affect is a kind of
functional term.

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Feeling is a descriptive term,
you know.

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00:15:14,240 --> 00:15:19,680
And so if we're using the word
affect and feeling synonymously,

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then such a system that has
affect must be conscious.

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00:15:25,280 --> 00:15:33,160
The the problem, though, arises
exactly with the issue that Carl

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00:15:33,160 --> 00:15:37,560
just raised, which is, you know,
the inevitable issue that we

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00:15:37,560 --> 00:15:41,480
have to address early on in a
discussion of the kind that

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00:15:41,480 --> 00:15:44,720
we're having today.
It is how would you ever know?

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00:15:45,760 --> 00:15:49,840
How would you know from the
functionality of a system

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00:15:49,920 --> 00:15:52,840
whether or not it's conscious?
Because consciousness, by

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00:15:52,840 --> 00:15:56,200
definition, that is something
that can only be observed

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00:15:56,360 --> 00:15:59,400
subjectively.
You know, if consciousness is

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00:15:59,400 --> 00:16:03,440
the is the property of the being
of a system, then only the

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00:16:03,440 --> 00:16:08,080
system can, can register it in
an, in an empirical, in a direct

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00:16:08,080 --> 00:16:10,200
empirical way.
In other words, actually feel

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00:16:10,200 --> 00:16:14,960
the feelings.
And as Carl said, you know, we

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00:16:14,960 --> 00:16:18,120
can't be sure that each other
are conscious.

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00:16:18,120 --> 00:16:22,520
We can only be sure that each of
us is for, for, for that very

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00:16:22,520 --> 00:16:25,640
reason.
But, you know, now I'd like to

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00:16:26,560 --> 00:16:30,640
pause for a moment and say, come
on, let's not be silly.

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00:16:30,840 --> 00:16:33,960
You know, I mean, it's, it's
only philosophers say things

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00:16:33,960 --> 00:16:37,040
like this.
I can't be sure that Kevin Myers

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00:16:37,040 --> 00:16:41,080
conscious, for heaven's sake,
that in, in, in reality, you

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00:16:41,080 --> 00:16:42,800
know, I don't doubt it for a
moment.

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00:16:43,560 --> 00:16:48,200
I can't know it as an absolute,
empirically, demonstrably,

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00:16:48,240 --> 00:16:52,040
observably true fact.
But it's absurd to doubt it.

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00:16:53,600 --> 00:16:59,680
And I, I would say it's absurd
to dot consciousness in

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00:16:59,680 --> 00:17:02,640
certainly all mammals and
certainly all vertebrates,

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00:17:03,520 --> 00:17:09,040
because it is such a reasonable
inference from my own experience

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00:17:09,040 --> 00:17:13,560
and from what I know about the,
the, the, the mechanistic basis

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00:17:13,560 --> 00:17:16,000
of my own experience.
What I know about the

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00:17:16,000 --> 00:17:20,880
mechanistic basis of my own
experience is that I mean on

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00:17:20,880 --> 00:17:24,760
because I believe all human
beings, the three of us are all

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00:17:24,760 --> 00:17:27,240
conscious.
What is it that makes us all

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00:17:27,240 --> 00:17:29,200
human beings?
Well, Karl says, well, we behave

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00:17:29,200 --> 00:17:31,120
like each other, we look like
each other, and so on.

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00:17:31,400 --> 00:17:34,920
But you know, it's
scientifically more to the point

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00:17:35,160 --> 00:17:41,200
is the fact that we all have the
same structures in our brains

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00:17:42,080 --> 00:17:47,240
that we know empirically in the
case of humans on the basis of

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00:17:47,240 --> 00:17:50,040
all sorts of methods.
You know, we know that if you

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00:17:50,040 --> 00:17:55,600
lesion that it will produce a
coma, if you stimulate that it

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00:17:55,600 --> 00:17:59,960
will produce in an intense state
of arousal with affective

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00:17:59,960 --> 00:18:02,520
quality.
These things have been

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00:18:02,520 --> 00:18:04,600
demonstrated time and time
again.

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00:18:04,880 --> 00:18:10,840
Therefore, I I start on the
absolutely reasonable assumption

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00:18:10,840 --> 00:18:16,760
that any other creature with the
same anatomical infrastructure

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00:18:17,680 --> 00:18:20,840
that it's going to have the same
functionality as me.

279
00:18:21,280 --> 00:18:24,480
It's behavior suggests it just
on ordinary naturalistic

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00:18:24,480 --> 00:18:27,560
behavior.
But more interestingly, I can

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00:18:27,560 --> 00:18:31,280
make predictions and I can say
because I know that stimulation

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00:18:31,280 --> 00:18:36,320
of this in human beings produces
intensely negative affective

283
00:18:36,320 --> 00:18:40,360
experiences, I predict that if I
stimulate this in that creature,

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00:18:40,600 --> 00:18:42,280
it's going to avoid the
stimulus.

285
00:18:42,640 --> 00:18:46,480
And you know, conversely, with
those that produce intensely and

286
00:18:46,520 --> 00:18:50,400
you know, the, the, the, the,
the prediction is, is, is is

287
00:18:50,400 --> 00:18:52,400
confirmed every upheld every
time.

288
00:18:52,840 --> 00:18:55,720
So the answer the scientific
answer by the ordinary

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00:18:55,720 --> 00:18:58,400
scientific method, you know, in
other words, falsifiable

290
00:18:58,400 --> 00:19:02,280
predictions.
It's it's it's confirmed every

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00:19:02,280 --> 00:19:07,640
time the problem starts for me.
I mean, let me pause.

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00:19:07,640 --> 00:19:10,800
Sorry, I'm probably overstating
over elaborating this, but this

293
00:19:10,800 --> 00:19:13,240
is such a fundamental thing.
You know this problem of other

294
00:19:13,240 --> 00:19:16,800
minds issue to our whole
discussion.

295
00:19:17,440 --> 00:19:24,240
The, the, the, even that, what
I've said so far, it's amazing

296
00:19:24,920 --> 00:19:30,040
how many people are skeptical.
Neuroscientists are skeptical

297
00:19:30,240 --> 00:19:35,280
about consciousness in some
other mammals and consciousness

298
00:19:35,600 --> 00:19:39,560
in even more of them, you know,
in, in, in all vertebrates.

299
00:19:39,920 --> 00:19:41,920
They, they, they're very dubious
about it.

300
00:19:41,920 --> 00:19:46,280
Many colleagues, you know, when
I, I, I have absolutely no

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00:19:46,840 --> 00:19:50,360
hesitation.
I have as little hesitation as I

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00:19:50,360 --> 00:19:52,800
have about whether Termin and
Carl are conscious.

303
00:19:53,680 --> 00:19:58,400
I have as little hesitation as
to whether a zebra fish is

304
00:19:58,400 --> 00:20:01,640
conscious because it's got the
same anatomy.

305
00:20:02,040 --> 00:20:03,680
The, the crucial anatomy is
there.

306
00:20:03,840 --> 00:20:08,560
And when you do, when you
intervene, the predictions that

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00:20:08,560 --> 00:20:11,560
you expect, the behavioural
outcomes that you expect are

308
00:20:11,560 --> 00:20:16,000
always, always confirmed.
But even there, there's,

309
00:20:16,040 --> 00:20:19,120
there's, there's what, what I'm
going to just call prejudice,

310
00:20:19,520 --> 00:20:22,320
you know, it's anthropocentric
prejudice.

311
00:20:24,040 --> 00:20:28,400
Or or, or, or, or or primate
centric prejudice or, you know,

312
00:20:28,400 --> 00:20:31,560
something like that.
That's, that's the nub of the

313
00:20:31,560 --> 00:20:33,440
matter.
Because as soon as you move

314
00:20:33,440 --> 00:20:40,040
beyond vertebrates and you know,
there's some very good

315
00:20:40,040 --> 00:20:43,040
candidates for consciousness of
beyond vertebrates.

316
00:20:43,040 --> 00:20:46,080
Like for example, you know, the
octopus is the, is the, is the

317
00:20:46,080 --> 00:20:49,800
creature that is most commonly
invoked in this, in, in this

318
00:20:49,920 --> 00:20:52,640
context.
But you know, if, if, if you

319
00:20:52,640 --> 00:20:55,880
look at the literature, there's,
there's pretty good evidence

320
00:20:56,360 --> 00:21:01,840
that a lot of invertebrates are,
you know, might be conscious and

321
00:21:01,840 --> 00:21:03,880
the but the prejudices are
enormous.

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00:21:04,480 --> 00:21:08,960
And, and from, from this point
onwards, once we go beyond

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00:21:08,960 --> 00:21:13,400
vertebrates, I think that the,
the, the problem is not only

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00:21:13,400 --> 00:21:18,880
prejudice, it's also that you,
you, you lose the, the, the,

325
00:21:19,080 --> 00:21:25,480
the, the obvious grounds for
testing predictions by, by, by

326
00:21:25,480 --> 00:21:30,880
homology, because they don't
have homologous anatomy or they,

327
00:21:31,080 --> 00:21:33,800
or their anatomy is, is, you
know, it's, it's, it's much more

328
00:21:33,800 --> 00:21:36,880
questionable whether these are
true homologs of the crucial

329
00:21:36,880 --> 00:21:40,440
structures in humans.
And so you got to start using

330
00:21:40,520 --> 00:21:44,640
other criteria.
And so it ends up becoming

331
00:21:44,640 --> 00:21:48,240
functional criteria.
And, and, and, and how are we

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00:21:48,240 --> 00:21:52,880
going to agree on what are the
functional criteria by which to,

333
00:21:54,240 --> 00:21:57,440
to measure this question or to
decide this question?

334
00:21:57,800 --> 00:22:01,880
Because the functional criteria
vary depending on your

335
00:22:01,880 --> 00:22:05,360
particular mechanistic
understanding of how

336
00:22:05,360 --> 00:22:07,600
consciousness works, what
consciousness is.

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00:22:07,920 --> 00:22:13,600
So we, we're in, so the, the,
the, the best we can do there is

338
00:22:13,720 --> 00:22:16,280
we have to in advance.
And when I say the best we can

339
00:22:16,280 --> 00:22:19,000
do, I mean if we're going to
function follow ordinary

340
00:22:19,000 --> 00:22:22,840
scientific method, the best we
can do is agree a reasonable

341
00:22:23,160 --> 00:22:27,640
number of experts.
It would have to agree in

342
00:22:27,640 --> 00:22:33,560
advance on a reasonable set of
criteria by which they would say

343
00:22:33,560 --> 00:22:37,600
if you meet X number or if your
system meets X number of these

344
00:22:37,600 --> 00:22:41,240
criteria, then we're going to
have to give it the benefit of

345
00:22:41,240 --> 00:22:44,920
the dot.
And it has to be done in advance

346
00:22:44,920 --> 00:22:47,400
because that's as close as you
can come to what what I was

347
00:22:47,400 --> 00:22:50,480
saying about the paradigm of
falsifiable predictions.

348
00:22:51,160 --> 00:22:55,520
These are no longer predictions
from anatomical homology, but

349
00:22:55,520 --> 00:23:00,640
rather predictions from
reasonable functionalist and

350
00:23:01,040 --> 00:23:04,240
what behaviours you would expect
on the basis of, you know,

351
00:23:04,240 --> 00:23:07,040
reasonable functionalist
assumptions.

352
00:23:07,240 --> 00:23:09,640
So I think that's that's the
best we can do.

353
00:23:09,960 --> 00:23:14,400
But to come now finally to the
question of mimicry, I think

354
00:23:14,400 --> 00:23:17,560
that there there are two things
that I want to say.

355
00:23:18,040 --> 00:23:20,280
The one is maybe they're the
same thing.

356
00:23:20,520 --> 00:23:27,400
The one is that, forgive me for
invoking authority, but even as

357
00:23:28,040 --> 00:23:32,960
as as pertinent an authority in
this context, as Tom Nagle says,

358
00:23:32,960 --> 00:23:37,640
an affective zombie is an
impossibility that that any

359
00:23:37,720 --> 00:23:45,520
system that has the the
functional mechanisms that

360
00:23:45,520 --> 00:23:50,720
generate affect, because as I
said, for me affect and feeling

361
00:23:50,720 --> 00:23:54,360
are the same thing.
Happily, Nagle agrees.

362
00:23:54,680 --> 00:23:57,560
You know that that if you have
the functional mechanisms that

363
00:23:57,560 --> 00:24:02,760
generate feeling, then you can't
have those without feeling.

364
00:24:03,040 --> 00:24:06,880
You know, it's just like it's a,
it's a, it's a, it's a self

365
00:24:06,880 --> 00:24:10,480
contradictory argument.
I can, I know where traumas is

366
00:24:10,480 --> 00:24:15,600
coming from when he talks about
zombies, but affective zombies,

367
00:24:15,960 --> 00:24:17,640
I think it's not quite the same
thing.

368
00:24:17,800 --> 00:24:20,800
You, you, you can't say that a
thing that has that functional

369
00:24:21,000 --> 00:24:24,800
architecture and displays all
the behaviours that go with

370
00:24:24,800 --> 00:24:27,640
affect.
You can't say that it's that

371
00:24:27,640 --> 00:24:31,680
it's a zombie because affect is
perforce felt.

372
00:24:31,800 --> 00:24:34,360
That's the what the what we
that's the the function we're

373
00:24:34,360 --> 00:24:38,000
talking about here is the
function that generates feeling.

374
00:24:38,080 --> 00:24:41,040
If you have that function, it
has to, it has to come along

375
00:24:41,040 --> 00:24:45,040
with feeling.
And so to make my second point,

376
00:24:45,040 --> 00:24:49,560
which as I say, may be the same
point, I don't see how you can

377
00:24:49,560 --> 00:24:53,320
mimic, if you have, it's a, it's
a question.

378
00:24:53,320 --> 00:24:59,200
If you instantiate that
architecture that it's

379
00:24:59,200 --> 00:25:04,080
reasonable to believe is the
mechanistic basis for whereby

380
00:25:04,080 --> 00:25:09,320
feelings are generated, then
the, the having such a mechanism

381
00:25:09,760 --> 00:25:14,640
is not mimicking what we have.
It is instantiating what we

382
00:25:14,640 --> 00:25:18,120
have.
And so, you know, I, I, I, I

383
00:25:18,120 --> 00:25:20,640
would quit.
And it all boils down again to

384
00:25:20,640 --> 00:25:24,160
what we said at the very
beginning that that conscious

385
00:25:24,160 --> 00:25:28,760
states are felt.
And so, you know, the, if you're

386
00:25:28,760 --> 00:25:33,320
generating an affect, you're
generating something the measure

387
00:25:33,320 --> 00:25:37,400
of which is from the, from the
viewpoint of the system, that is

388
00:25:37,400 --> 00:25:41,920
that, that mechanism feels like
something I, I, I hope I'm

389
00:25:41,920 --> 00:25:45,320
making myself clear.
Cole, anything about that you'd

390
00:25:45,320 --> 00:25:53,600
like to respond to or Adam?
Yes, just to pick up and

391
00:25:54,600 --> 00:25:58,240
reinforce or reiterate a couple
of key points.

392
00:25:59,640 --> 00:26:04,960
So the first is this
acknowledgement that we are

393
00:26:04,960 --> 00:26:12,240
using homology as the basis of
the evidence that we assimilate

394
00:26:12,520 --> 00:26:16,040
when making a decision about
whether you or some artefact is

395
00:26:16,080 --> 00:26:19,160
is conscious.
Mark articulated that in terms

396
00:26:19,160 --> 00:26:21,800
of the scientific process, he
deferred to Popper.

397
00:26:22,080 --> 00:26:25,640
Not everybody would, but he did.
And that's perfectly fine.

398
00:26:26,160 --> 00:26:30,480
And that's exactly what I meant,
that consciousness is something

399
00:26:30,480 --> 00:26:33,560
you infer about something.
It's it's an act of measurement.

400
00:26:33,560 --> 00:26:37,560
It's an observation that entails
a degree of inference.

401
00:26:37,560 --> 00:26:41,560
And because that means there has
to be evidence for that

402
00:26:41,560 --> 00:26:43,280
inference.
And I think this is going to be

403
00:26:43,280 --> 00:26:45,400
practically relevant when we
come to machine consciousness

404
00:26:45,400 --> 00:26:47,840
because you're going to, you
know, people like Joshua back

405
00:26:47,840 --> 00:26:52,560
are asking, you know, what kind
of evidence based approaches

406
00:26:52,560 --> 00:26:55,560
should we take to this artefact
to say whether it is conscious

407
00:26:55,560 --> 00:26:58,320
or not.
So this is a really important

408
00:26:58,320 --> 00:27:00,040
question.
And I think Mark has very

409
00:27:00,040 --> 00:27:04,520
elegantly just sort of framed
that as the as the key issue.

410
00:27:05,000 --> 00:27:08,560
And he, I repeat, articulated in
terms of preparian scientific

411
00:27:08,760 --> 00:27:12,000
inference or hypothesis testing.
And that's exactly what I meant

412
00:27:13,840 --> 00:27:18,440
in terms of inferring something
is conscious.

413
00:27:19,040 --> 00:27:23,440
And then what he went on to say
was, well, OK, we can certainly

414
00:27:23,440 --> 00:27:26,720
use structural and anatomical
homology as one source of

415
00:27:26,720 --> 00:27:29,640
evidence.
So if I were able to breach your

416
00:27:29,640 --> 00:27:33,000
mark of blanket and look inside,
say unfortunately you had died

417
00:27:33,000 --> 00:27:36,440
and I was able to dissect you
and I can look at the structure

418
00:27:36,440 --> 00:27:39,480
of your brain and I can
certainly find those source of

419
00:27:39,680 --> 00:27:43,600
sources of ascending classical
neuromodulatory systems, you

420
00:27:43,600 --> 00:27:47,880
know, around the base of your
brain that are those that

421
00:27:47,880 --> 00:27:52,880
machinery, that part of your
anatomy that is necessary to

422
00:27:52,880 --> 00:27:57,640
support feeling.
And I could infer even though

423
00:27:57,640 --> 00:28:00,000
you are no longer conscious
because you're dead, because

424
00:28:00,000 --> 00:28:02,360
I've broken your mark off
blanket by literally slicing

425
00:28:02,360 --> 00:28:06,200
into your brain, then I could
infer that you were conscious

426
00:28:07,160 --> 00:28:09,040
simply on that structural
homology.

427
00:28:10,000 --> 00:28:11,640
Could I apply that to a zebra
fish?

428
00:28:11,800 --> 00:28:14,760
Well, to a certain extent we can
because we can actually image

429
00:28:14,760 --> 00:28:18,120
the neuronal circuitry at least
and and look at the common

430
00:28:18,120 --> 00:28:20,520
homologies and you may argue
from the point of origin of

431
00:28:20,520 --> 00:28:24,240
life, there are lots of
different structural chemical

432
00:28:27,080 --> 00:28:30,440
homologies that might, you know,
one might appeal to as sources

433
00:28:30,440 --> 00:28:32,280
of evidence to make an
inference.

434
00:28:32,600 --> 00:28:34,640
A best guess is this thing
conscious or not?

435
00:28:35,760 --> 00:28:37,760
And of course, what you're
saying is if it's sufficiently

436
00:28:37,760 --> 00:28:43,360
like me, it's conscious and the
more that homology is broken and

437
00:28:43,360 --> 00:28:47,560
the further you wander away from
zebra fish down to viruses, the,

438
00:28:47,640 --> 00:28:50,080
the, the less you can rely upon
that homology.

439
00:28:50,800 --> 00:28:53,080
And then what Mark said.
OK, well, are there other

440
00:28:53,080 --> 00:28:55,440
criteria?
Because it's, if I do, if I

441
00:28:55,440 --> 00:28:59,360
dissect my personal computer, I
am not going to find these

442
00:28:59,360 --> 00:29:01,200
things.
It just doesn't have the right

443
00:29:01,200 --> 00:29:02,240
anatomy.
It doesn't have the right

444
00:29:02,280 --> 00:29:05,760
architecture, which may tell you
that my PC will never be

445
00:29:05,760 --> 00:29:08,600
conscious, but let's just pursue
the argument.

446
00:29:08,720 --> 00:29:10,920
But there may be some other
homology there which was a

447
00:29:10,920 --> 00:29:14,520
functional 1.
And I think that's, you know, is

448
00:29:14,520 --> 00:29:18,920
that true?
Can you ever have a divorce

449
00:29:18,920 --> 00:29:20,760
between the anatomy and the
function?

450
00:29:21,040 --> 00:29:24,040
Can you have a divorce between
the structure and the function?

451
00:29:24,240 --> 00:29:27,080
The the, the OR the dynamics on
the structure?

452
00:29:28,360 --> 00:29:30,320
I would actually argue you
can't.

453
00:29:31,280 --> 00:29:33,360
So I don't think this is a
disagreement, but it's a

454
00:29:33,360 --> 00:29:36,600
particularly strong position,
which I'm not, let us say I'm

455
00:29:36,600 --> 00:29:40,400
not necessarily committed to,
but I would certainly argue, say

456
00:29:40,400 --> 00:29:44,720
if I was Ross Ashby and or
indeed Carl Friston, as you

457
00:29:44,720 --> 00:29:48,440
know, the author of the energy
principle, I would argue that

458
00:29:48,440 --> 00:29:53,800
the anatomy is the substrate
that embodies or entails the

459
00:29:53,800 --> 00:29:56,160
function.
So this is the good regulator

460
00:29:56,160 --> 00:29:59,520
theorem.
It's also appears again and

461
00:29:59,520 --> 00:30:02,160
again in the context of the free
energy principle, that we

462
00:30:02,160 --> 00:30:06,600
install the cause effect
structure of our lived world

463
00:30:08,160 --> 00:30:12,960
into our anatomy so that it has
a hierarchy, so that that

464
00:30:12,960 --> 00:30:16,360
reflects, for example, the scale
invariance and the hierarchical

465
00:30:16,360 --> 00:30:19,840
composition of things that
generate our sensorium.

466
00:30:20,920 --> 00:30:25,960
It has a separation of temporal
scales, It has dynamics, it has

467
00:30:26,440 --> 00:30:29,040
and so on and so forth.
And there are lots of, if you

468
00:30:29,040 --> 00:30:37,760
like, aspects of the anatomy
that are tie you down to a

469
00:30:37,760 --> 00:30:40,800
particular Physiology, that tie
you down to a particular

470
00:30:40,800 --> 00:30:43,680
functionality.
And in many respects, most of

471
00:30:43,680 --> 00:30:47,520
the theories that attend the
free energy principle are about

472
00:30:47,520 --> 00:30:49,360
that.
So is my brain a predictive

473
00:30:49,360 --> 00:30:53,160
coding machine?
You know, does it work like a

474
00:30:53,160 --> 00:30:56,160
camera filter?
Or is it oblique propagation

475
00:30:56,160 --> 00:30:58,760
machine?
Does it work like message

476
00:30:58,760 --> 00:31:01,680
passing on a factograph?
Both have quite plausible

477
00:31:02,680 --> 00:31:07,720
hypotheses that specify a
particular anatomy, a particular

478
00:31:07,720 --> 00:31:09,760
connectivity, a particular
structure.

479
00:31:10,160 --> 00:31:15,400
So from that point of view, what
we are saying then is if we are

480
00:31:15,400 --> 00:31:19,720
looking at homologies and both
the functional and anatomy, both

481
00:31:19,720 --> 00:31:23,440
are basically two sides of the
same coin, two sides of the same

482
00:31:23,440 --> 00:31:29,080
coin, then the inference that
something is conscious is only

483
00:31:29,080 --> 00:31:32,920
by homology.
Which just means that you can

484
00:31:32,920 --> 00:31:36,520
only be conscious if you're
sufficiently like me, which

485
00:31:36,520 --> 00:31:41,720
means you will not be able to
recognize consciousness in any

486
00:31:41,720 --> 00:31:45,400
other kind of artifact or any
other space-time scale.

487
00:31:46,000 --> 00:31:48,280
I think that's important from a
machine consciousness point of

488
00:31:48,280 --> 00:31:52,880
view because you cannot now make
consciousness in a machine that

489
00:31:52,880 --> 00:31:56,400
does not look like me.
So now what you're saying is you

490
00:31:56,400 --> 00:32:01,720
have to turn to mortal
computation, substrate dependent

491
00:32:01,720 --> 00:32:06,240
computation, before you can
build an artifact that's going

492
00:32:06,240 --> 00:32:10,960
to pass the Turing test, Turing
test of of consciousness,

493
00:32:11,240 --> 00:32:13,440
because it has to have that
homology.

494
00:32:13,440 --> 00:32:16,880
It has to have the same anatomy,
the same computational anatomy,

495
00:32:16,880 --> 00:32:21,760
the same functional anatomy, the
functional architecture as me,

496
00:32:21,760 --> 00:32:23,720
because that's the only source
of evidence.

497
00:32:23,720 --> 00:32:25,080
Why is it the only source of
evidence?

498
00:32:25,160 --> 00:32:27,240
Because it's only me that has
feelings.

499
00:32:27,560 --> 00:32:30,440
So yeah, if this thing has
feelings, it has to be like me.

500
00:32:32,000 --> 00:32:35,800
And I think that's important,
you know, to say out loud when

501
00:32:35,800 --> 00:32:38,440
it comes to questions about
consciousness.

502
00:32:38,640 --> 00:32:41,440
That tells you two things.
That machine consciousness is

503
00:32:41,440 --> 00:32:49,120
only going to be emergent when
it's evinced in transaction with

504
00:32:49,200 --> 00:32:51,880
other things that are conscious,
namely people.

505
00:32:52,520 --> 00:32:56,000
And it's going to have to have
some mortal aspect to it and

506
00:32:56,000 --> 00:32:58,680
possibly have the morphic
structural aspect to it as well.

507
00:32:59,400 --> 00:33:02,440
But certainly the transactional
aspect, the relational, the

508
00:33:02,440 --> 00:33:05,440
observational aspect is going to
is, is is quite important.

509
00:33:05,680 --> 00:33:08,120
So you're not going to find
consciousness on the edge.

510
00:33:08,680 --> 00:33:10,600
You're not going to find it in
supercomputers.

511
00:33:11,080 --> 00:33:14,360
You're not going to find it.
You could even argue on von

512
00:33:14,360 --> 00:33:20,320
Neumann architectures simply for
just extending and formalizing

513
00:33:20,320 --> 00:33:25,080
the the the the the truisms that
Mark was just articulating,

514
00:33:25,080 --> 00:33:28,280
which all rest upon homology.
Is this thing like me?

515
00:33:30,520 --> 00:33:35,320
So I want to come in there.
First of all, I want to say

516
00:33:35,640 --> 00:33:40,640
something about Papa.
It's not an endorsement of Papa

517
00:33:40,800 --> 00:33:45,920
that I invoke him here.
The reason I do is because of

518
00:33:45,920 --> 00:33:50,560
the conservative, you know,
dispositions of of the

519
00:33:50,560 --> 00:33:55,840
scientists who going to be most
sceptical as as I've

520
00:33:55,840 --> 00:33:59,320
encountered, even when it comes
to trying to persuade some of my

521
00:33:59,320 --> 00:34:02,480
colleagues about vertebrate
consciousness being ubiquitous.

522
00:34:02,920 --> 00:34:06,600
So I'm saying, well, let's use
the most conservative rules and,

523
00:34:06,600 --> 00:34:09,679
and laws, principles, customs,
you know, that we use in

524
00:34:09,679 --> 00:34:11,960
science.
Just about every natural

525
00:34:11,960 --> 00:34:17,199
scientist, you know, functions
by those rule, those poparian

526
00:34:17,199 --> 00:34:21,080
sort of criteria in, in, in
terms of, you know, what your

527
00:34:21,080 --> 00:34:24,040
peers are going to expect you to
do if they're going to accept

528
00:34:24,040 --> 00:34:26,080
the results that you want to
publish.

529
00:34:26,400 --> 00:34:31,040
So I, I just, I have nothing
against Popper particularly, but

530
00:34:31,040 --> 00:34:34,719
I don't want to be seen to be
endorsing Popper as the one and

531
00:34:34,719 --> 00:34:39,320
only voice that we should be
guided by in the philosophy of

532
00:34:39,320 --> 00:34:41,560
science.
It's just that it he, he does

533
00:34:41,560 --> 00:34:47,400
have such hegemonic control over
over over contemporary science.

534
00:34:47,400 --> 00:34:49,600
And so I'm saying, well, if
we're going to follow those

535
00:34:49,600 --> 00:34:51,560
rules, then we must follow them
fairly.

536
00:34:51,560 --> 00:34:55,280
We must, we must say, OK, well
then let's apply them, you know,

537
00:34:55,320 --> 00:34:59,080
beyond it's, it's a way of
trying to get around prejudice

538
00:34:59,080 --> 00:35:02,920
basically in a word.
But now back to the more

539
00:35:02,920 --> 00:35:06,960
substantive issues that that
Carl has just articulated, I

540
00:35:06,960 --> 00:35:10,840
think, and the reason I'm going
to say what I'm going to say is

541
00:35:10,840 --> 00:35:14,720
that there's a lot of potential
slippage in the way that what

542
00:35:14,720 --> 00:35:16,720
Carl has just said will be
heard.

543
00:35:17,440 --> 00:35:20,920
So people will people with
certain positions will say, you

544
00:35:20,920 --> 00:35:23,080
see, Carl Friston agrees with
me.

545
00:35:23,200 --> 00:35:25,640
And people with a completely
different position will say, you

546
00:35:25,640 --> 00:35:27,440
see, Carl Friston agrees with
me.

547
00:35:27,600 --> 00:35:31,560
So because they will hear what
he's saying in their own ways.

548
00:35:31,960 --> 00:35:34,960
So, so I want to just go slowly
here.

549
00:35:36,360 --> 00:35:42,000
The at the one extreme, Carl
will have been heard now to have

550
00:35:42,080 --> 00:35:46,920
articulated a kind of biological
naturalist position, saying that

551
00:35:47,400 --> 00:35:52,360
unless you have the same anatomy
as me, or at least the same

552
00:35:52,360 --> 00:35:58,080
essential your your anatomy has
has recognizably homologous

553
00:36:01,400 --> 00:36:06,760
structure, then I don't think
it's possible that it can have

554
00:36:06,760 --> 00:36:11,560
the same functionality.
Some people will hear what he

555
00:36:11,560 --> 00:36:17,240
said as that as a biological
naturalist, you know, the

556
00:36:17,240 --> 00:36:20,640
substrate, this business is not
substrate independent.

557
00:36:21,200 --> 00:36:28,000
And others would like me will
hear him as saying by anatomy he

558
00:36:28,000 --> 00:36:31,800
means architecture.
And he in fact used the word,

559
00:36:33,880 --> 00:36:38,760
you know, in that way.
To my ear, he was saying an

560
00:36:38,760 --> 00:36:43,520
anatomy in the sense of it's,
it's not just a functionalism in

561
00:36:43,520 --> 00:36:47,280
terms of, it's what it does.
It doesn't matter on what

562
00:36:47,280 --> 00:36:50,320
substrate it does it.
So if the outcome is the same,

563
00:36:50,480 --> 00:36:54,800
you know, then it is the same.
I, I, I don't think that if the

564
00:36:54,800 --> 00:36:58,200
outcome is the same in regard to
a good many functions.

565
00:36:58,640 --> 00:37:02,400
And I, I want us to speak here
in broad terms because I don't

566
00:37:02,400 --> 00:37:05,320
want there to be exceptionalism
when it comes to consciousness.

567
00:37:05,720 --> 00:37:09,120
You know, that that's another
one of the prejudices that I'm

568
00:37:09,120 --> 00:37:14,120
trying to prevent it as far as
is possible.

569
00:37:14,320 --> 00:37:16,240
Consciousness is just part of
nature.

570
00:37:16,720 --> 00:37:21,560
It's, it's, it's something that
must have mechanistic causes

571
00:37:22,800 --> 00:37:25,680
like everything else.
And it must be possible for us

572
00:37:25,680 --> 00:37:28,560
to eventually discern what that
mechanism is.

573
00:37:29,120 --> 00:37:32,440
And therefore it must be
possible to be able to create

574
00:37:32,800 --> 00:37:35,920
that mechanism.
If it's not, then conscious is

575
00:37:35,920 --> 00:37:38,760
something utterly special,
completely different from the

576
00:37:38,760 --> 00:37:44,600
whole of the rest of nature.
So I'm saying when we speak

577
00:37:44,600 --> 00:37:48,600
about outcomes, not to do with
consciousness, but outcomes, you

578
00:37:48,600 --> 00:37:53,720
know, you could say, well, you
know, because you can that

579
00:37:54,160 --> 00:37:59,160
travel to the same destination
by aeroplane or by Oxcott.

580
00:37:59,360 --> 00:38:02,000
You know, therefore Oxcott and
aeroplanes are the same thing.

581
00:38:02,000 --> 00:38:04,000
And that's ridiculous.
They're not, they're completely

582
00:38:04,000 --> 00:38:06,000
different things.
They, they have the same outcome

583
00:38:06,000 --> 00:38:10,600
of getting you to Paris, but the
one takes you 10 years to get

584
00:38:10,600 --> 00:38:14,280
there, another, you know, 10
hours, you know, because they're

585
00:38:14,280 --> 00:38:16,840
completely different things.
It's not just a matter of the,

586
00:38:16,880 --> 00:38:24,120
of the, of the destination.
If the, so, you know, coming to

587
00:38:24,120 --> 00:38:29,360
biology, you know, there, there,
there are prostheses which have

588
00:38:29,560 --> 00:38:33,840
the same functional
architecture, which are doing

589
00:38:33,840 --> 00:38:36,400
the same thing.
Not in the sense that I was just

590
00:38:36,560 --> 00:38:41,600
speaking now in terms of, you
know, what the output is, it is

591
00:38:41,640 --> 00:38:47,560
what they're actually doing, you
know, so the, when you, when

592
00:38:47,560 --> 00:38:49,880
you're having open heart
surgery, you know, there's a,

593
00:38:50,680 --> 00:38:54,680
there's a, an artificial machine
that keeps your blood

594
00:38:54,680 --> 00:38:58,000
circulating, but it's a
completely different substrate.

595
00:38:58,240 --> 00:39:02,080
It's not made of muscle.
You know, it's, it's, it's, it's

596
00:39:02,280 --> 00:39:07,120
a, it's a, it's a, a, a, a
machine in the colloquial sense

597
00:39:07,120 --> 00:39:09,840
of the word, you know, as
opposed to a biological

598
00:39:10,480 --> 00:39:12,600
substrate.
It's a, it's a, it's a

599
00:39:12,600 --> 00:39:16,240
mechanical artificial substrate.
But it does do the same thing.

600
00:39:16,840 --> 00:39:21,280
So I think that we're looking at
what Carl's talking about is a

601
00:39:21,280 --> 00:39:23,720
functional, A functional
architecture.

602
00:39:23,720 --> 00:39:26,720
So it's not just the functional
output, it's the functional

603
00:39:26,720 --> 00:39:28,920
architecture.
But I think that's what he's

604
00:39:28,920 --> 00:39:31,280
saying.
That has to be homologous.

605
00:39:32,200 --> 00:39:36,040
It it can't just be it has it,
it has the same behavioral

606
00:39:36,040 --> 00:39:38,800
output.
It it has to be doing the same

607
00:39:38,800 --> 00:39:40,960
thing.
But that doesn't mean it has to

608
00:39:40,960 --> 00:39:44,040
be a biological creature.
And I found it.

609
00:39:44,280 --> 00:39:46,360
I don't know.
Carl, are you a commentator on

610
00:39:46,360 --> 00:39:48,960
the Neil's paper in BBS?
The, the Yep.

611
00:39:49,040 --> 00:39:53,880
So our, our close colleague, I
mean, are close in in every

612
00:39:53,880 --> 00:39:56,520
sense of the word, but most
importantly for present

613
00:39:56,520 --> 00:40:01,240
purposes, he, he shares the same
theoretical assumptions for the

614
00:40:01,240 --> 00:40:06,440
most part as as Carl and I do.
And yet he's he's recently,

615
00:40:06,960 --> 00:40:08,600
well, this paper hasn't come out
yet.

616
00:40:09,440 --> 00:40:12,960
But it's, it's doing the rounds
because it's not in the process

617
00:40:12,960 --> 00:40:15,560
of open peer review.
So I think it's, you know, it's

618
00:40:15,560 --> 00:40:20,400
OK to comment on it.
It's, he argues A biological

619
00:40:20,400 --> 00:40:23,800
naturalist position when it
comes to consciousness.

620
00:40:24,200 --> 00:40:27,600
And I was rather surprised, but
that's what he did.

621
00:40:28,280 --> 00:40:31,720
He, he argues explicitly argues
a biological naturalist

622
00:40:31,720 --> 00:40:35,040
position.
But then when you actually drill

623
00:40:35,040 --> 00:40:39,080
down into the article, he ends
up saying, you know, because you

624
00:40:39,080 --> 00:40:43,840
know, it has to have this
functional architecture, it has

625
00:40:43,840 --> 00:40:47,080
to be actually trying to
maintain the life of the system.

626
00:40:48,000 --> 00:40:51,160
You know, consciousness is, is,
is, is.

627
00:40:51,800 --> 00:40:53,480
And I agree with them.
You know, in terms of

628
00:40:53,480 --> 00:40:55,720
consciousness, it's the most
basic form, which is just

629
00:40:55,720 --> 00:40:57,320
feeling.
It's got everything to do with

630
00:40:57,320 --> 00:40:59,240
homeostasis.
It's got everything to do.

631
00:41:00,040 --> 00:41:02,640
So therefore with the free
energy principle and active

632
00:41:02,640 --> 00:41:05,240
inference and all of that.
But you know, in the service of

633
00:41:05,240 --> 00:41:07,880
homeostasis and in the service
of things which are

634
00:41:07,880 --> 00:41:12,600
fundamentally biological or the,
the, the Organism giving a damn

635
00:41:13,040 --> 00:41:16,200
to, to quote Hagelin's and a
famous and a computers don't

636
00:41:16,200 --> 00:41:18,600
give a damn.
You know, the, the, the, if the,

637
00:41:18,880 --> 00:41:21,840
if the thing doesn't give a
damn, then it then it, you know,

638
00:41:21,880 --> 00:41:26,480
it, it about its own existence.
And if it isn't seeking to

639
00:41:26,640 --> 00:41:30,600
maintain its own existence and,
and deploying affect in the

640
00:41:30,600 --> 00:41:36,880
service of this, this subjective
goal, etcetera, this existential

641
00:41:36,880 --> 00:41:40,040
goal, you know, then it says,
says Anil.

642
00:41:40,040 --> 00:41:41,920
I don't see how it can be
conscious.

643
00:41:42,400 --> 00:41:47,000
But then he goes on to say, but
I grant you that they could be a

644
00:41:47,000 --> 00:41:53,680
robot which has, you know, non
carbon based instantiation of

645
00:41:53,680 --> 00:41:57,840
this same functionality.
And he says then it would have

646
00:41:58,120 --> 00:42:02,080
artificial consciousness, real
artificial consciousness, he

647
00:42:02,080 --> 00:42:04,240
calls it.
So this is the slippage that I'm

648
00:42:04,240 --> 00:42:06,360
talking about.
It sounds like biological

649
00:42:06,360 --> 00:42:10,000
naturalism and and Neil actually
claims to be a biological

650
00:42:10,000 --> 00:42:12,960
naturalist, but he ends up
saying something which is

651
00:42:13,320 --> 00:42:17,960
functionalist in the sense of
functional architecture doing

652
00:42:17,960 --> 00:42:22,760
something for the system of this
kind.

653
00:42:24,360 --> 00:42:27,960
I don't it doesn't have to be an
aneel basically concedes the

654
00:42:27,960 --> 00:42:30,960
point.
It doesn't have to be made of

655
00:42:31,360 --> 00:42:37,800
neurons and muscle and and
vessel and so on.

656
00:42:38,040 --> 00:42:42,240
So that maybe we are beginning
to enter into an area of

657
00:42:42,240 --> 00:42:43,640
disagreement.
I don't think so.

658
00:42:43,640 --> 00:42:47,880
I'm more worried about how Cole
might be misheard if I if if

659
00:42:47,880 --> 00:42:51,640
I've interpreted him correctly.
I don't think, Cole, you're a

660
00:42:51,640 --> 00:42:55,040
biological naturalist.
Good.

661
00:42:55,040 --> 00:42:58,720
Thank you.
No, you're absolutely right.

662
00:42:59,480 --> 00:43:03,400
Is it interesting you pick up on
the sort of the architect and

663
00:43:03,400 --> 00:43:09,800
I've certainly in the past
decade, 3 decades ago when we

664
00:43:09,800 --> 00:43:13,280
were doing a lot of brain
scanning, the inception of

665
00:43:13,320 --> 00:43:16,520
posture and emission tomography
and subsequently fMRI, we're in

666
00:43:16,520 --> 00:43:21,040
a position for the first time to
image the anatomy of the brain

667
00:43:21,040 --> 00:43:23,000
in function.
And we'll use the term

668
00:43:23,000 --> 00:43:26,880
functional anatomy as distinct
from structural anatomy or the

669
00:43:26,880 --> 00:43:30,240
kind of anatomy that anatomist
did so from.

670
00:43:30,240 --> 00:43:33,400
For decades I've used the word
functional anatomy, but I've now

671
00:43:33,400 --> 00:43:38,720
deliberately changed it because
that's too, what did you call

672
00:43:38,760 --> 00:43:42,200
it, biological, Whatever,
whatever it it's too

673
00:43:42,200 --> 00:43:44,440
constrained.
Yeah, what what what people are

674
00:43:44,440 --> 00:43:46,120
talking about are functional
architectures.

675
00:43:46,840 --> 00:43:48,800
That's what I meant by dynamics
on structure.

676
00:43:49,680 --> 00:43:52,680
So you're absolutely right.
And it doesn't have to be carbon

677
00:43:52,680 --> 00:43:56,800
based and it certainly doesn't
have to be, doesn't have to be,

678
00:43:57,040 --> 00:43:59,680
for example.
And I think this is sort of

679
00:43:59,680 --> 00:44:02,400
practically important because
you will find a community out

680
00:44:02,400 --> 00:44:06,000
there who are committed to a
particular kind of neuromorphic

681
00:44:07,240 --> 00:44:10,680
way forward in terms of
artificial consciousness based

682
00:44:10,680 --> 00:44:13,920
upon spiking neural networks,
SSNS, SNS.

683
00:44:14,960 --> 00:44:18,600
So you know, that is really
going, you know, a particular

684
00:44:18,600 --> 00:44:22,840
commitment to a biomedic
neuromorphic kind of computation

685
00:44:22,840 --> 00:44:27,560
where they're actually emulating
the spiked by spike Physiology

686
00:44:27,560 --> 00:44:30,840
of synaptic transmission.
I don't think that is what is

687
00:44:30,840 --> 00:44:35,680
implied by certainly the self
evidence implied by things like

688
00:44:35,680 --> 00:44:40,160
the free energy principle.
What is implied is the anatomy

689
00:44:40,160 --> 00:44:43,440
of the cause effect structure
being installed in the message

690
00:44:43,440 --> 00:44:47,000
passing on the dynamics in your
computer, whether your computer

691
00:44:47,000 --> 00:44:49,320
is your brain or your personal
computer.

692
00:44:49,920 --> 00:44:52,640
That it is that architecture
that that absolutely I was

693
00:44:52,640 --> 00:44:56,280
talking about and doesn't need
to be cast at the scale of

694
00:44:56,280 --> 00:44:58,280
spikes.
It could be population dynamics,

695
00:44:58,280 --> 00:45:01,560
and indeed you could argue as a
physicist, all physics,

696
00:45:01,560 --> 00:45:04,560
including the physics of
sentience and the physics of

697
00:45:04,560 --> 00:45:09,360
consciousness is just a a
statement of probabilistic

698
00:45:09,360 --> 00:45:12,920
dynamics.
It you know, So you don't need

699
00:45:12,920 --> 00:45:18,000
to actually simulate the every
element of an ensemble over

700
00:45:18,000 --> 00:45:19,440
which you have a probability
distribution.

701
00:45:19,440 --> 00:45:24,320
You just need to simulate the
functional architectures that

702
00:45:24,800 --> 00:45:27,520
describe the density dynamics,
the probability density

703
00:45:27,520 --> 00:45:29,920
dynamics.
And I put it like that because

704
00:45:30,040 --> 00:45:33,600
you can always reduce any
functional architecture to a

705
00:45:33,640 --> 00:45:36,560
graphical model.
And it's just the connectivity

706
00:45:36,560 --> 00:45:39,280
and the architecture of that
graphical model that I was

707
00:45:39,280 --> 00:45:43,600
implying when, you know, when I
talked about sort of functional

708
00:45:43,600 --> 00:45:45,920
anatomy.
One final point is to again to

709
00:45:45,920 --> 00:45:56,160
sort of reiterate Mark's point.
Well, perhaps we'll come back to

710
00:45:56,160 --> 00:46:00,360
this, but you know, I was trying
to sort of pick up on a Neil's

711
00:46:01,280 --> 00:46:05,280
arguments and amplify them in a
way that I thought he would be

712
00:46:05,280 --> 00:46:08,760
pleased with.
And I, I didn't spot the

713
00:46:08,760 --> 00:46:12,440
biological aspect too much, but
I, what I did spot was the

714
00:46:12,440 --> 00:46:16,320
commitment to in memory
processing and mortal

715
00:46:16,320 --> 00:46:18,720
computation.
So I'm not saying the substrate

716
00:46:18,720 --> 00:46:21,440
has to be carbon based.
And what I'm saying is that the,

717
00:46:21,920 --> 00:46:25,200
the, the stuff in and of itself
has to do the computation.

718
00:46:26,360 --> 00:46:30,360
And that becomes very relevant
when we're talking about von

719
00:46:30,360 --> 00:46:34,920
Neumann architectures and in
memory processing, such as say

720
00:46:34,920 --> 00:46:37,760
with remembrances or photonics.
So I'm going to put that on the

721
00:46:37,760 --> 00:46:38,680
side.
I think that's something we

722
00:46:38,680 --> 00:46:41,520
might have to come back to,
because when I talk about mortal

723
00:46:41,520 --> 00:46:45,520
computation and when people like
Alex and Jeff Hinton talk about

724
00:46:45,880 --> 00:46:51,800
mortal computation, we're not
talking about biological neural

725
00:46:51,800 --> 00:46:54,240
networks.
We are talking about the

726
00:46:54,240 --> 00:46:59,680
functional architectures that
render the substrate locally

727
00:46:59,680 --> 00:47:03,040
doing the computation.
And it could be, I repeat say,

728
00:47:03,120 --> 00:47:06,240
saying memristors.
And there's another take, which

729
00:47:06,240 --> 00:47:09,440
is Alex's take on mortal
computation, which resonates

730
00:47:09,440 --> 00:47:14,440
beautifully with what Mark was
just saying that OK, what is

731
00:47:14,440 --> 00:47:16,560
mortal computation?
You could say it is

732
00:47:16,560 --> 00:47:19,120
intelligence.
And if you've got affect or

733
00:47:19,120 --> 00:47:22,880
feeling under the hood during
the immortal computation, then

734
00:47:22,880 --> 00:47:27,200
you have consciousness.
What's the, what will be

735
00:47:27,200 --> 00:47:30,680
immortal computation?
Well, anything that can be run

736
00:47:30,680 --> 00:47:34,000
by software that is immortal.
So software that can be run on

737
00:47:34,000 --> 00:47:39,080
any machine is immortal.
But if the software is a thing

738
00:47:40,000 --> 00:47:47,320
that is the is conscious, then
it has no need to worry about

739
00:47:47,320 --> 00:47:50,440
persisting, surviving,
responding to drives or needs

740
00:47:50,720 --> 00:47:53,560
because it's immortal.
So I expect it's a really

741
00:47:53,560 --> 00:47:56,640
interesting point.
The the, the, the, the

742
00:47:56,680 --> 00:48:00,240
existential imperatives that
underwrites self organization of

743
00:48:00,240 --> 00:48:04,640
the kind that induce the notion
of drives and needs and effects

744
00:48:04,840 --> 00:48:08,600
and feelings can only be an
attribute to something that can

745
00:48:08,600 --> 00:48:13,160
die because it's it's own
purpose is to prolong the period

746
00:48:13,160 --> 00:48:16,320
between its introduction into
the world and the point that it

747
00:48:16,320 --> 00:48:19,120
departs.
So it has to be mortal in this,

748
00:48:19,120 --> 00:48:21,160
in this sort of, you know,
common sensical sense.

749
00:48:23,840 --> 00:48:27,400
Guys, before let us come back to
that, I made a note about it

750
00:48:27,400 --> 00:48:29,920
just so that we don't
accidentally forget, forget to

751
00:48:29,920 --> 00:48:32,680
answer the question call
perhaps.

752
00:48:32,720 --> 00:48:35,280
Let's continue with you for now.
Is it possible?

753
00:48:35,960 --> 00:48:37,640
With that being said, I tried to
preface this with the

754
00:48:37,640 --> 00:48:41,360
philosophical conversation first
about consciousness, and there's

755
00:48:41,360 --> 00:48:44,200
something else I'd like to touch
on that still hasn't been asked.

756
00:48:44,200 --> 00:48:46,560
But let let's start with the
main topic at hand.

757
00:48:46,600 --> 00:48:50,720
Is it possible then to engineer
artificial consciousness?

758
00:48:53,200 --> 00:48:56,840
Yeah, I see no reason why not.
You just need to identify the

759
00:48:56,840 --> 00:49:01,920
right functional anatomy.
And as you say, it is going

760
00:49:01,920 --> 00:49:06,440
beyond creating agents, but I
think you'd have to have agency

761
00:49:06,440 --> 00:49:11,880
as part of your, your
intelligent artefact and then

762
00:49:11,880 --> 00:49:16,240
you would need to equip it with
affect and the the machinery

763
00:49:16,240 --> 00:49:21,760
necessary to support feelings.
How would you do that?

764
00:49:22,600 --> 00:49:27,360
Well, we've just touched on on
sort of two, well three issues.

765
00:49:28,480 --> 00:49:35,000
First of all, you would I think
have to commit to to mortal

766
00:49:35,000 --> 00:49:37,320
computation.
I don't think he can do this in

767
00:49:37,320 --> 00:49:41,720
a von Neumann architecture.
And we can talk about why in a

768
00:49:41,720 --> 00:49:45,120
second.
If we did, if we did, we could

769
00:49:45,120 --> 00:49:49,040
certainly simulate consciousness
in a, in a sort of layman sense

770
00:49:49,040 --> 00:49:53,120
on a von Neumann architecture.
And this would be very much akin

771
00:49:53,320 --> 00:49:56,920
to Mark's example of a heart
lung machine keeping a patient

772
00:49:56,920 --> 00:50:01,520
alive during heart surgery.
So it's perfectly possible to

773
00:50:01,520 --> 00:50:05,840
simulate the kind of belief
updating and message passing and

774
00:50:05,840 --> 00:50:10,400
potentially simulate the affect
read in this instance as

775
00:50:10,760 --> 00:50:15,720
investing certain certain
messages or certain belief

776
00:50:15,720 --> 00:50:19,200
structures with a confidence or
a precision or igniting them in

777
00:50:19,200 --> 00:50:21,840
the right kind of way.
So that make a difference to to

778
00:50:21,840 --> 00:50:23,920
your to your intelligent
processing.

779
00:50:25,520 --> 00:50:29,080
But it, you know, if it's on a
von Neumann architecture, it

780
00:50:29,600 --> 00:50:35,440
would be mimicry in, in a sort
of vernacular sense, in the same

781
00:50:35,440 --> 00:50:40,040
way that the heart lung machine
is mimicking the, the

782
00:50:40,040 --> 00:50:44,920
functionality of the biological
heart and pulmonary system,

783
00:50:45,200 --> 00:50:48,480
which is of course the the real
thing can do forever.

784
00:50:48,480 --> 00:50:51,000
The heart lung machine is going
to run out of electricity at

785
00:50:51,000 --> 00:50:54,560
some point or break, you know,
it's just not fit for purpose

786
00:50:54,560 --> 00:50:57,840
for an, for an extended period
of time, unlike the mortal

787
00:50:58,640 --> 00:51:01,960
computation or the mortal
circulation that we enjoy with

788
00:51:01,960 --> 00:51:05,400
our actual heart and lungs.
So I think it's going to have to

789
00:51:05,400 --> 00:51:08,200
be mortal, which basically means
I think you're, you're looking

790
00:51:08,200 --> 00:51:12,080
at I, I would imagine
membristers of possibly

791
00:51:12,080 --> 00:51:14,840
photonics, but I think more more
likely to be membristers

792
00:51:15,840 --> 00:51:20,120
architectures.
And then the, the, the other

793
00:51:20,120 --> 00:51:24,880
thing we talked about is this
relational thing that the, this

794
00:51:24,880 --> 00:51:32,120
artefact has to learn to be like
you or to be like things that

795
00:51:32,120 --> 00:51:37,880
feel in order to have as part of
its generative model the notion

796
00:51:37,920 --> 00:51:42,840
of affect or feeling, or at
least be able to report that.

797
00:51:43,120 --> 00:51:46,680
Mark would probably argue not.
He would argue that you just

798
00:51:46,680 --> 00:51:51,920
need to equip it with the right
neuromodulators so that it can

799
00:51:52,160 --> 00:51:58,240
realise its inferences.
And what would they look like?

800
00:51:58,400 --> 00:52:00,320
Well, they look a little bit
like attention head in

801
00:52:00,320 --> 00:52:03,160
transformer architectures, but
with one key difference.

802
00:52:03,840 --> 00:52:10,480
These attention heads have to be
selected by some other, by some

803
00:52:10,560 --> 00:52:12,280
other aspect of the generative
model.

804
00:52:12,680 --> 00:52:17,000
So it's like having, if you like
a context sensitive learnable

805
00:52:17,000 --> 00:52:20,760
attention head.
And I think if that was

806
00:52:20,760 --> 00:52:27,000
implemented on a using in memory
processing or processing in

807
00:52:27,000 --> 00:52:30,600
memory memory computer
architectures with the right

808
00:52:30,600 --> 00:52:35,720
kind of reactive message passing
or actor model of as as Keith

809
00:52:36,280 --> 00:52:39,880
Dugard likes to likes to talk
about, I think you're getting

810
00:52:39,880 --> 00:52:42,880
very close to it.
And it would have to be done.

811
00:52:43,800 --> 00:52:48,160
It would have to be done in a,
in an interactional way.

812
00:52:48,240 --> 00:52:51,160
You'd have to, you know, you
can't just set it off and use

813
00:52:51,160 --> 00:52:53,320
reinforcement learning, come
back, make yourself conscious

814
00:52:53,320 --> 00:52:54,360
and let me know when you've done
it.

815
00:52:54,720 --> 00:52:58,520
It would have to be an ongoing
process of interaction within an

816
00:52:58,520 --> 00:53:02,640
ecosystem where there was some
shared generative model.

817
00:53:02,640 --> 00:53:05,520
And I forgot to say earlier on
again, this, this notion of

818
00:53:05,520 --> 00:53:08,960
homology is absolutely central,
I think because when I talk

819
00:53:08,960 --> 00:53:11,720
about these things,
consciousness depends upon a

820
00:53:11,720 --> 00:53:13,880
shared narrative or shared
charity model.

821
00:53:14,200 --> 00:53:16,760
And certainly talking about it
does because communicational

822
00:53:16,760 --> 00:53:19,600
language does.
So another aspect of homology is

823
00:53:19,600 --> 00:53:22,000
the fact that we all come to
share the same functional

824
00:53:22,000 --> 00:53:24,760
architectures because we all
learn the same things.

825
00:53:24,760 --> 00:53:27,600
We learn the same language.
And of course, that's a

826
00:53:27,600 --> 00:53:31,480
fundamental aspect of minimizing
uncertainty and minimizing free

827
00:53:31,480 --> 00:53:34,520
energy when we all come to
predict each other.

828
00:53:35,120 --> 00:53:38,840
And from that emerges language
and communication and of course

829
00:53:38,840 --> 00:53:43,680
the notion, the hypothesis that,
you know, we all have feelings

830
00:53:43,720 --> 00:53:46,400
and we can talk about the
feelings, not necessary to have

831
00:53:46,400 --> 00:53:48,080
the feelings, but we can
certainly talk about them.

832
00:53:48,440 --> 00:53:51,520
So if you want to have that as
part of your machine

833
00:53:51,520 --> 00:53:55,520
consciousness, that means you're
going to have to evolve in very

834
00:53:55,520 --> 00:53:57,560
much in the way that we grow.
You know, we bring up our

835
00:53:57,560 --> 00:53:59,520
children.
It's going to have to be a

836
00:53:59,520 --> 00:54:02,040
transactional process.
You're not going to be able to

837
00:54:02,040 --> 00:54:07,240
write down with an RL algorithm,
you know, or use a large

838
00:54:07,240 --> 00:54:09,480
language model go and make me a
conscious artifact.

839
00:54:09,960 --> 00:54:13,120
It's going to require a lot of a
lot of interaction, possibly

840
00:54:13,120 --> 00:54:18,160
dyadic or possibly Federated,
you know, in a sort of ecosystem

841
00:54:18,160 --> 00:54:21,600
that includes things that can
feel and we know, we think feel.

842
00:54:22,800 --> 00:54:26,320
Marks same question, Is it
possible to engineer artificial

843
00:54:26,320 --> 00:54:29,600
consciousness And thereafter you
can also address all the points

844
00:54:29,920 --> 00:54:31,840
that Cole made.
Yeah, yeah.

845
00:54:31,840 --> 00:54:36,760
I, I mean, this is the question
that our meeting is designed to

846
00:54:36,760 --> 00:54:39,600
address.
So, you know, I'm, I'm glad

847
00:54:39,600 --> 00:54:45,440
we're being asked to answer it
with, you know, half an hour to

848
00:54:45,440 --> 00:54:48,160
go.
So we, we still can can talk

849
00:54:48,160 --> 00:54:51,920
about mopping up the details.
But we've each, we, we must hear

850
00:54:51,920 --> 00:54:55,760
each commit to an answer, a
position on this question.

851
00:54:56,120 --> 00:54:58,480
Before I give you my answer,
which I don't think is going to

852
00:54:58,480 --> 00:55:01,680
come as a big surprise.
I just want to pick up on one

853
00:55:01,680 --> 00:55:06,440
detail in what Carl said
because, you know, as I keep

854
00:55:06,440 --> 00:55:09,520
saying, I'm not sure there's
anything we'll disagree about.

855
00:55:09,920 --> 00:55:14,720
So my comment on his previous
response was I'm worrying some

856
00:55:14,720 --> 00:55:18,760
people might think we disagree.
So I clarified that and I'm glad

857
00:55:18,760 --> 00:55:22,320
we don't disagree about, you
know, about about substrate

858
00:55:22,320 --> 00:55:28,720
independence as opposed to, you
know, functional architectural

859
00:55:29,160 --> 00:55:31,720
homology that that we agree
about.

860
00:55:32,120 --> 00:55:33,480
And that's the nub of the
matter.

861
00:55:34,560 --> 00:55:37,200
And it turned out to be the nub
of the matter in in a Neil's

862
00:55:37,200 --> 00:55:43,600
Article 2 the the point that
Carl said Mark might disagree.

863
00:55:44,000 --> 00:55:48,000
I want to pick up on that point
again in the spirit of wanting

864
00:55:48,000 --> 00:55:52,320
to clarify where do we disagree?
If we do, it was on the question

865
00:55:52,320 --> 00:55:55,360
of reportability.
And so I want to say something

866
00:55:55,360 --> 00:55:59,200
about that which might seem sort
of peripheral or even

867
00:55:59,200 --> 00:56:02,240
gratuitous, but but it turns out
to be quite important.

868
00:56:03,240 --> 00:56:09,680
Many of my colleagues working in
the this field of, you know, of

869
00:56:09,960 --> 00:56:13,360
consciousness neuroscience of
consciousness, they hold

870
00:56:13,360 --> 00:56:16,240
reportability to be the
empirical gold standard.

871
00:56:16,640 --> 00:56:19,960
They're saying if you, if, if
you, and they're speaking

872
00:56:19,960 --> 00:56:22,360
because they're anthropocentric,
you know, they, they have in

873
00:56:22,360 --> 00:56:26,480
mind humans and they're saying,
look, if the person like, for

874
00:56:26,480 --> 00:56:30,800
example, when you reducing the
speed of the stimulus in a

875
00:56:30,800 --> 00:56:34,120
tektoscopic setup or something
like that, there has to be a

876
00:56:34,120 --> 00:56:38,400
certain point where the person
says, I no longer see it.

877
00:56:38,960 --> 00:56:41,560
Or there has to be a certain
point at which they say, now I

878
00:56:41,560 --> 00:56:43,800
see it.
And you know, that is the

879
00:56:43,800 --> 00:56:46,600
empirical criterion.
It's because we're talking about

880
00:56:46,600 --> 00:56:48,960
consciousness, we're talking
about experience and you have to

881
00:56:48,960 --> 00:56:51,440
report I am experiencing it or
I'm not.

882
00:56:51,720 --> 00:56:58,160
And they, you know, so the, the,
this was thrown at me, for

883
00:56:58,160 --> 00:57:00,640
example, recently, you know,
when I speak of Hydra and

884
00:57:00,640 --> 00:57:03,400
cephalic children who've got no
cortex, they say, well, there's

885
00:57:03,400 --> 00:57:05,760
no empirical evidence that they
can't, just because they can't

886
00:57:05,760 --> 00:57:08,840
report.
And I say, yeah, you know, my

887
00:57:08,840 --> 00:57:12,360
Labrador can't report.
My, my, my, my children couldn't

888
00:57:12,360 --> 00:57:13,960
report before they learned to
speak.

889
00:57:13,960 --> 00:57:16,680
And are you really seriously,
you know, claiming that my

890
00:57:16,680 --> 00:57:19,960
Labrador is, is not conscious
because it can't report.

891
00:57:20,360 --> 00:57:24,800
And, and the, the, the argument
I, I, I make there is it's

892
00:57:25,400 --> 00:57:28,360
reportability is it's the
easiest thing in the world to

893
00:57:28,360 --> 00:57:31,080
get something to report that
it's conscious when it's not,

894
00:57:32,080 --> 00:57:36,400
you know, it's so I, I don't
disagree with Carl about

895
00:57:36,400 --> 00:57:41,320
reportability in the sense that,
you know, I would like my agent

896
00:57:41,440 --> 00:57:46,000
to be able to report that it's
conscious, but it's very easy to

897
00:57:46,000 --> 00:57:49,920
mislead.
It's very easy to get a entirely

898
00:57:50,800 --> 00:57:56,480
non conscious agent to say like,
like a large language model.

899
00:57:56,480 --> 00:57:59,320
You know, it can say I'm feeling
such and such, but there's no

900
00:57:59,320 --> 00:58:01,160
reason whatsoever to believe
that it is.

901
00:58:01,760 --> 00:58:05,600
And so we we've got to get
beyond reportability.

902
00:58:06,080 --> 00:58:10,120
And this brings us back to, you
know, what do we really mean by

903
00:58:10,920 --> 00:58:14,680
what is a conscious state?
And it comes back again to this

904
00:58:14,680 --> 00:58:19,680
question of mimicry.
If, if we, if we accept and not

905
00:58:19,680 --> 00:58:22,240
everybody accepts it, but if we
accept, for the sake of

906
00:58:22,240 --> 00:58:29,040
argument, my claim that raw
feeling is the elemental form of

907
00:58:29,040 --> 00:58:31,120
consciousness.
All you have to have is feeling.

908
00:58:31,480 --> 00:58:34,960
To be able to report it is
great, but you don't have to be

909
00:58:34,960 --> 00:58:37,280
able to report it.
You just have to be able to feel

910
00:58:37,280 --> 00:58:41,520
it.
To me that cannot be mimicked

911
00:58:41,840 --> 00:58:44,440
except in the sense of
misleading us, you know, So

912
00:58:44,440 --> 00:58:46,520
that's why I'm saying
reportability is a very

913
00:58:46,520 --> 00:58:50,760
misleading criterion because
it's so easy to create an, an

914
00:58:50,760 --> 00:58:54,480
artificial intelligence that's
going to report also and sort,

915
00:58:54,640 --> 00:58:57,200
which is mimicry in the sense of
misleading us.

916
00:58:57,680 --> 00:59:02,920
But you can't mimic a feeling
that because it's it's presence

917
00:59:02,920 --> 00:59:06,240
or absence is is a subjective
presence or absence, you know.

918
00:59:06,240 --> 00:59:09,680
So if there's a feeling there,
it can't be mimicked, It is

919
00:59:09,680 --> 00:59:11,480
felt.
Whether it's an artificial

920
00:59:11,480 --> 00:59:14,920
feeling or a biological feeling
is a different matter.

921
00:59:15,160 --> 00:59:19,880
But to me, the thing that we're
talking about when we speak of

922
00:59:19,880 --> 00:59:22,080
consciousness, to me
fundamentally we're talking

923
00:59:22,080 --> 00:59:28,360
about feeling and a feeling when
it's there will be felt.

924
00:59:28,440 --> 00:59:31,240
And therefore it's not
something, it's not a

925
00:59:31,240 --> 00:59:35,400
behavioural thing, It's a, it's
a, it's a felt, it's a, it's a

926
00:59:35,400 --> 00:59:39,720
state of the system.
So now to your question, the,

927
00:59:39,760 --> 00:59:42,160
the big question, which as I
said, my answer is not

928
00:59:42,200 --> 00:59:43,840
surprising.
Absolutely.

929
00:59:43,840 --> 00:59:48,520
I believe that it is possible to
engineer an artificial

930
00:59:48,520 --> 00:59:52,440
consciousness.
I see no reason whatsoever why

931
00:59:52,440 --> 00:59:55,520
we can't do it.
And it's because of what I said

932
00:59:55,520 --> 00:59:57,480
earlier.
So I won't repeat it in detail.

933
00:59:57,480 --> 00:59:59,400
I'll just give you the headline
again.

934
00:59:59,680 --> 01:00:03,600
It's part of nature.
It, it's, it's not exempt from

935
01:00:04,280 --> 01:00:08,760
the, the, the, the if
something's part of nature, to

936
01:00:08,840 --> 01:00:12,320
quote Feynman, you know that
that statement that he wrote on

937
01:00:12,320 --> 01:00:14,640
his blackboard, which was found
upon his death.

938
01:00:15,240 --> 01:00:17,800
If I can't create it, I don't
understand it.

939
01:00:18,160 --> 01:00:21,560
Was what he wrote.
And so, you know, if you

940
01:00:21,560 --> 01:00:24,840
understand how, how
consciousness in the sense that

941
01:00:24,840 --> 01:00:28,320
I'm using it, how feeling
arises, then you should be able

942
01:00:28,320 --> 01:00:36,520
to create it.
So I believe we, we, if we, to

943
01:00:36,560 --> 01:00:40,720
the extent that we do understand
how feeling arises, we can

944
01:00:40,720 --> 01:00:44,200
create it now already.
But I'm not so sure that we have

945
01:00:44,200 --> 01:00:46,760
a complete understanding of how
feeling arises.

946
01:00:46,760 --> 01:00:48,720
But I think we're in the right
sort of ballpark.

947
01:00:48,960 --> 01:00:51,880
If we're in the utterly wrong
ballpark, somebody else will

948
01:00:51,880 --> 01:00:54,720
understand how feelings arise
and they will create it

949
01:00:54,960 --> 01:00:57,680
artificially.
So I'm, I'm, I'm unequivocal

950
01:00:58,200 --> 01:01:01,920
that it's possible and it's, and
it will happen.

951
01:01:02,080 --> 01:01:04,560
It's just a matter of when and
how.

952
01:01:05,320 --> 01:01:12,600
So let me add then some detail
in terms of, you know what, what

953
01:01:12,600 --> 01:01:16,480
do I think causes feeling?
And I'll try to be brief.

954
01:01:16,480 --> 01:01:19,480
Obviously, you know, because of
time constraints, I'm, I'm not

955
01:01:19,480 --> 01:01:22,240
going to be, I'm not going to do
full justice to the whole thing.

956
01:01:22,560 --> 01:01:28,240
But I think that a mark of
blanketed self organizing system

957
01:01:28,760 --> 01:01:32,160
from the point of view of such
as first of all, such a system

958
01:01:32,160 --> 01:01:36,080
does have a point of view, which
is an important starting point.

959
01:01:36,480 --> 01:01:39,240
There's an important
prerequisite for selfhood.

960
01:01:39,360 --> 01:01:41,120
You know, it has to have a point
of view.

961
01:01:41,120 --> 01:01:44,760
There's a, there's the point of
view of the system upon what is

962
01:01:44,760 --> 01:01:48,480
not the system.
That that from the point of view

963
01:01:48,480 --> 01:01:50,560
of such a system.
And Please note what I've

964
01:01:50,560 --> 01:01:52,480
described is not something
complicated.

965
01:01:52,480 --> 01:01:55,960
You know, this is something
easily engineered a, an

966
01:01:55,960 --> 01:02:00,560
artificial self organizing
system with a, with a mark of

967
01:02:00,560 --> 01:02:02,160
blanket, which has a point of
view.

968
01:02:02,160 --> 01:02:06,680
And from its point of view,
increasing free energy just is

969
01:02:06,680 --> 01:02:10,560
bad.
It just is, you know, so and,

970
01:02:10,600 --> 01:02:14,200
and, and it's important to
emphasize it's only bad from the

971
01:02:14,200 --> 01:02:18,480
point of view of the system.
So there we have subjectivity

972
01:02:18,520 --> 01:02:24,000
and mechanistic basis for, for
describing what we mean by and I

973
01:02:24,000 --> 01:02:28,240
don't mean felt subjectivity.
I'm I'm saying there is a point

974
01:02:28,240 --> 01:02:32,640
of view of such a system and it
and it's registering something,

975
01:02:33,280 --> 01:02:39,560
some mechanistic property is
being registered within a value

976
01:02:39,560 --> 01:02:43,920
system, which from the point of
view of the of the system,

977
01:02:44,360 --> 01:02:47,600
increasing free energy is bad
for the system.

978
01:02:48,360 --> 01:02:51,440
So there we have valence,
mechanistically described

979
01:02:51,480 --> 01:02:56,360
goodness and vadnais
subjectively construed in

980
01:02:56,360 --> 01:03:01,080
entirely mechanistic terms.
And then what you need to add to

981
01:03:01,080 --> 01:03:06,280
that is that that's a, that's a
continuous variable, you know,

982
01:03:06,280 --> 01:03:14,400
free energy going up and down.
The valence is not, it's not,

983
01:03:14,400 --> 01:03:16,000
it's not.
It's a value.

984
01:03:16,360 --> 01:03:18,960
But I think you need to add
something more, which is that,

985
01:03:19,280 --> 01:03:23,800
that, that that complex systems
of the kind I have in mind have

986
01:03:23,800 --> 01:03:29,360
multiple, they have multiple
needs, multiple survival needs.

987
01:03:29,360 --> 01:03:32,360
I mean, they're multiple
categories of things that have

988
01:03:32,360 --> 01:03:37,600
to be kept within their viable
bounds for the system to

989
01:03:37,600 --> 01:03:39,920
persist.
By the way, I need to, I should

990
01:03:39,920 --> 01:03:41,360
have emphasized that at the
beginning.

991
01:03:41,360 --> 01:03:44,720
I completely agree with Kahul
that such a system has to be

992
01:03:44,720 --> 01:03:47,280
artificially alive.
It's it's, it's, you know,

993
01:03:47,560 --> 01:03:51,160
artificially alive that it's,
it's what I'm describing is a

994
01:03:51,160 --> 01:03:56,600
system that is seeking only to
continue to exist as a system

995
01:03:56,600 --> 01:04:00,360
That that's the what I've just
described mechanistically is

996
01:04:00,360 --> 01:04:02,680
such a system.
But if it has multiple

997
01:04:02,680 --> 01:04:07,240
categories of need, multiple
categories of viable bounds,

998
01:04:07,560 --> 01:04:11,760
then those must be treated as
categorical variables by the

999
01:04:11,760 --> 01:04:13,800
system.
They must mechanistically, they

1000
01:04:13,800 --> 01:04:15,440
must.
They can't.

1001
01:04:15,440 --> 01:04:19,520
You can't add 8 out of 10 of
thirst to 8 out of 10 of

1002
01:04:19,520 --> 01:04:22,560
sleepiness and say that's 16 out
of 20 of total need.

1003
01:04:22,560 --> 01:04:23,960
Therefore all I need to do is
sleep.

1004
01:04:24,240 --> 01:04:26,000
If you don't also drink, you
will die.

1005
01:04:26,440 --> 01:04:32,280
So these these needs have to be
treated as categorical

1006
01:04:32,280 --> 01:04:35,880
variables, which means, and
here's the crucial point that

1007
01:04:36,080 --> 01:04:40,360
they necessarily are
qualitatively differentiated.

1008
01:04:41,840 --> 01:04:44,840
That's what we mean by a
categorical variable that when I

1009
01:04:44,840 --> 01:04:47,840
say that 8 out of 10 of
sleepiness is not the same thing

1010
01:04:47,840 --> 01:04:51,840
as 8 out of 10 of thirst, they
are qualitatively different.

1011
01:04:52,600 --> 01:04:57,080
And so there I think we have a
mechanistic account of, of, of

1012
01:04:57,080 --> 01:05:01,120
the Ground Zero of qualia that
from the point of view of such a

1013
01:05:01,120 --> 01:05:03,960
system, it's got that point of
view.

1014
01:05:04,280 --> 01:05:07,280
It has a subjective goodness or
vadnais, which must be

1015
01:05:07,280 --> 01:05:11,600
qualitatively differentiated.
And all of this is registered

1016
01:05:11,680 --> 01:05:15,840
only internally by the system
for the system.

1017
01:05:16,280 --> 01:05:19,960
I think that that that's the
kind of basic functional, very

1018
01:05:19,960 --> 01:05:21,520
basic.
Remember, I'm not going into

1019
01:05:21,520 --> 01:05:26,000
details, but for me, that's the
basic functional architecture of

1020
01:05:26,000 --> 01:05:31,360
a system that that that has an
elementary form of feeling.

1021
01:05:32,800 --> 01:05:34,920
There's a lot more detail, but
that's that's my.

1022
01:05:35,360 --> 01:05:39,000
So when I say if we're in the
right ballpark, that's the

1023
01:05:39,000 --> 01:05:42,840
ballpark I'm in.
Mark, anything about that you'd

1024
01:05:42,840 --> 01:05:46,160
like to comment on and and just
to try and play devil's advocate

1025
01:05:46,160 --> 01:05:48,360
to try and see if there's
anything you guys do disagree

1026
01:05:48,360 --> 01:05:50,800
with.
How much importance do you

1027
01:05:50,880 --> 01:05:54,560
please call Sir on on feeling
and this version of feeling that

1028
01:05:54,560 --> 01:05:58,960
Mark just defined and described
valence and qualia in in terms

1029
01:05:58,960 --> 01:06:01,440
of consciousness and then trying
to engineer it.

1030
01:06:03,760 --> 01:06:08,960
I put a lot of emphasis on on
that for a particular reason,

1031
01:06:08,960 --> 01:06:17,600
which I will conclude with.
But just just to take that key

1032
01:06:17,600 --> 01:06:22,280
point that Mark just made from a
technical perspective.

1033
01:06:23,440 --> 01:06:27,680
If you remember before I was
glibly saying you can't just use

1034
01:06:27,680 --> 01:06:30,920
a large language model to say go
and make me an intelligent

1035
01:06:30,920 --> 01:06:35,160
artifact or use deep RL.
I had a reason for saying that.

1036
01:06:35,960 --> 01:06:40,800
And the reason is exactly what
Mark was describing in terms of

1037
01:06:41,080 --> 01:06:46,320
multiple variables that need
that provide constraints on the

1038
01:06:46,320 --> 01:06:49,920
kind of thing that I am or the
states that are characteristic

1039
01:06:49,920 --> 01:06:53,120
of the kind of thing that I am.
And if I violate those states,

1040
01:06:53,560 --> 01:06:57,960
then I will be very surprised I
will have a high free energy.

1041
01:06:57,960 --> 01:07:03,440
So just keeping myself within
those viable range of essential

1042
01:07:03,440 --> 01:07:09,080
variables of of any sort is just
a definition of existing and

1043
01:07:09,080 --> 01:07:10,080
living.
And of course if your

1044
01:07:10,080 --> 01:07:12,880
physiologist, it's just a
definition of homeostasis and

1045
01:07:12,880 --> 01:07:18,200
possibly homeoresis analostasis.
If you're a statistician or of

1046
01:07:18,560 --> 01:07:21,920
at least a statistical
physicist, what you're talking

1047
01:07:21,920 --> 01:07:25,200
about is the maths of multiple
constraint satisfaction.

1048
01:07:25,560 --> 01:07:29,120
So I would read the multiple
categories that Mark was talking

1049
01:07:29,120 --> 01:07:31,920
about that cannot be collapsed
into one dimension.

1050
01:07:32,640 --> 01:07:35,000
He was talking about thirst and
hunger, for example.

1051
01:07:35,640 --> 01:07:37,480
These are two-dimensional
structures.

1052
01:07:37,480 --> 01:07:39,440
In fact they're multi
dimensional structures.

1053
01:07:39,760 --> 01:07:42,640
So you got multiple constraints
that have to be satisfied.

1054
01:07:42,920 --> 01:07:47,160
And I use that phraseology
because that is exactly what you

1055
01:07:47,160 --> 01:07:50,840
get when you turn to the good
and great of statistical

1056
01:07:50,840 --> 01:07:56,160
physics, for example, ET Janes.
So he describes physics,

1057
01:07:56,160 --> 01:07:59,720
certainly it's meteorological
measurement aspect of physics,

1058
01:08:00,160 --> 01:08:05,640
just as maximum entropy under
constraints.

1059
01:08:05,920 --> 01:08:08,840
And it's the constraints that
shape the kind of thing you are

1060
01:08:09,200 --> 01:08:12,800
and violating those constraints
just is increasing free energy.

1061
01:08:13,320 --> 01:08:19,720
So from a physicist perspective,
that what marks sort of emphasis

1062
01:08:20,040 --> 01:08:23,840
on multiple ways of being
surprised, multiple ways of

1063
01:08:23,840 --> 01:08:28,760
dying, multiple ways of being
out of kilter in a homeostatic

1064
01:08:28,760 --> 01:08:31,720
or emotional or social or
whatever sense.

1065
01:08:32,479 --> 01:08:39,520
This is what basically provides
the the shape of you and

1066
01:08:39,520 --> 01:08:43,319
yourself organization.
And complying with those

1067
01:08:43,319 --> 01:08:47,120
constraints just is a
constrained maximum entropy

1068
01:08:47,120 --> 01:08:50,319
principle that just is the free
energy principle.

1069
01:08:51,319 --> 01:08:53,560
So on that level, I thought that
was the important thing, which

1070
01:08:53,560 --> 01:08:57,040
is why you can't do with RL.
You can't do with reinforcement

1071
01:08:57,040 --> 01:09:01,720
learning because you've only got
1 category to reinforce the

1072
01:09:01,720 --> 01:09:07,720
money or sweeties of likes.
You can't do multiple constraint

1073
01:09:07,720 --> 01:09:13,120
satisfaction properly with RL,
but you can do it with your

1074
01:09:13,120 --> 01:09:15,399
constraint maximum entropy
principles or the free energy

1075
01:09:15,399 --> 01:09:18,760
principle or active inference,
provided you you've got the

1076
01:09:18,760 --> 01:09:22,520
right functional architecture in
play that has all of these

1077
01:09:22,760 --> 01:09:24,840
multiple constraints and
dimensions.

1078
01:09:25,520 --> 01:09:29,880
Everything, everything that
either can be observed or

1079
01:09:29,880 --> 01:09:33,160
everything that is brought to
the table to explain those

1080
01:09:33,160 --> 01:09:35,439
observations, they all have to
have a shape.

1081
01:09:35,560 --> 01:09:37,319
Some of them will be very, very
precise.

1082
01:09:37,560 --> 01:09:44,760
You know, I can only be ±.6°C
away from this preferred

1083
01:09:44,760 --> 01:09:47,760
temperature.
Some can be very, very

1084
01:09:48,000 --> 01:09:51,439
forgiving.
You know, I can be me in the

1085
01:09:51,439 --> 01:09:54,800
North Pole, I can be me in New
York, I can be me in Cape Town.

1086
01:09:55,520 --> 01:09:59,280
So, you know, some things have
enormous, very precise

1087
01:09:59,280 --> 01:10:02,600
constraints and sometimes and
sometimes they have less, but

1088
01:10:02,600 --> 01:10:04,080
they still have to be
constrained.

1089
01:10:04,080 --> 01:10:07,560
They define, they define.
So you need a calculus, you need

1090
01:10:07,560 --> 01:10:11,640
an algorithm, you need a, a
description, a mechanics of self

1091
01:10:11,640 --> 01:10:13,800
organization that allows for
this.

1092
01:10:13,800 --> 01:10:16,920
And, and I think that that
that's, that's a point which,

1093
01:10:17,040 --> 01:10:25,360
you know, I've just reiterated
in terms of is, you know, Mark

1094
01:10:25,360 --> 01:10:27,400
did say he was keeping it really
simple.

1095
01:10:27,760 --> 01:10:30,960
To my mind, I think he kept it a
bit too simple.

1096
01:10:31,440 --> 01:10:39,040
I think just making inferences
under constraints, I think

1097
01:10:39,080 --> 01:10:43,560
denies him the opportunity to
wax lyrical about the encoding

1098
01:10:43,560 --> 01:10:47,640
of uncertainty and the very
essence of beliefs.

1099
01:10:48,360 --> 01:10:52,040
You know, we, we, we start off
by saying that I can only

1100
01:10:52,040 --> 01:10:54,120
believe you are conscious.
I can never know.

1101
01:10:54,880 --> 01:10:58,040
So we're talking about a
calculus of, of belief

1102
01:10:58,040 --> 01:10:59,520
structures of probability
densities.

1103
01:10:59,680 --> 01:11:02,840
And of course, the most
important, well, the second most

1104
01:11:02,840 --> 01:11:05,760
important aspect of a
probability distribution or

1105
01:11:05,760 --> 01:11:09,520
belief structure after it's
locational content is it's

1106
01:11:09,520 --> 01:11:15,080
shape.
And for me that would be simply

1107
01:11:15,080 --> 01:11:17,960
described in terms of it's neg
entropy or, or or it's

1108
01:11:17,960 --> 01:11:20,960
precision.
So the encoding of uncertainty

1109
01:11:21,720 --> 01:11:28,280
in working out how to say to
your needs to me is the heart of

1110
01:11:28,280 --> 01:11:32,280
feeling.
As I read Mark, he didn't say

1111
01:11:32,280 --> 01:11:34,720
that, so I'm going to pass it
back to him to see if he wants

1112
01:11:34,720 --> 01:11:37,880
to be slightly less simple.
Yeah, just having an inference

1113
01:11:37,880 --> 01:11:42,280
machine that that complies with
some pride preferences.

1114
01:11:43,320 --> 01:11:47,040
I, I, I, I mean, it may be
right, but I get the feeling

1115
01:11:47,040 --> 01:11:50,600
that that much of your thinking
and the Yeah.

1116
01:11:50,600 --> 01:11:52,720
And I know, of course Tevin does
as well.

1117
01:11:52,720 --> 01:11:56,800
But for those people don't know,
Mark actually has a group of

1118
01:11:57,120 --> 01:11:59,360
bright young things actually
trying to build artificial

1119
01:11:59,360 --> 01:12:02,680
consciousness at the moment, and
he's taking it a little bit

1120
01:12:02,680 --> 01:12:05,840
further than his straightforward
explanation would suggest.

1121
01:12:07,400 --> 01:12:11,840
Yes, thank you, Carl.
I, I, I really want when I'm my

1122
01:12:11,840 --> 01:12:14,760
mind, my eye on the clock.
And so I wanted to keep it

1123
01:12:14,760 --> 01:12:17,440
absolutely simple.
And the thing that I was

1124
01:12:18,280 --> 01:12:22,520
emphasizing is in very broad
brush strokes, what do we mean

1125
01:12:22,520 --> 01:12:27,200
by a mortal system and why, why
does what, what kind of mortal

1126
01:12:27,200 --> 01:12:29,840
system?
Where does the possibility or

1127
01:12:29,840 --> 01:12:32,240
the necessity of feeling fit
into it?

1128
01:12:32,240 --> 01:12:34,840
And so I was saying the
necessity of feeling fits into

1129
01:12:34,840 --> 01:12:39,760
it in the sense that it's it's
values in terms of trying to

1130
01:12:40,640 --> 01:12:44,400
remain in existence.
In other words, it's monitoring

1131
01:12:44,400 --> 01:12:49,640
of its free energy has to be has
to be distributed across

1132
01:12:50,040 --> 01:12:52,920
multiple categories, which means
they must be qualitatively

1133
01:12:52,920 --> 01:12:55,720
registered by the system.
But that's what I said is

1134
01:12:55,720 --> 01:13:01,720
certainly not sufficient to to.
So let's start with what Carl

1135
01:13:01,720 --> 01:13:04,680
ended with when he spoke about a
prior preference distribution,

1136
01:13:04,680 --> 01:13:08,400
he said, you know, it's, it's
not enough just to for such a

1137
01:13:08,400 --> 01:13:10,720
system just to be maintaining
its prior preference

1138
01:13:10,720 --> 01:13:13,560
distribution.
So I'll add here a little bit of

1139
01:13:13,560 --> 01:13:17,680
detail.
And before I do that, I want to

1140
01:13:17,680 --> 01:13:23,080
say picking up on on, on what
Carl has just said, that I am

1141
01:13:23,600 --> 01:13:27,960
leading A-Team together with my
colleague Jonathan Shock, a

1142
01:13:28,080 --> 01:13:32,400
brilliant young physicist, which
is trying to do this.

1143
01:13:32,400 --> 01:13:37,520
We're trying to instantiate the
sorts of functional

1144
01:13:37,520 --> 01:13:39,160
architectures that we're talking
about.

1145
01:13:39,160 --> 01:13:43,920
And so I know from experience
how difficult it is when it gets

1146
01:13:43,920 --> 01:13:46,720
down to the detail.
I mean it's extremely, we've

1147
01:13:46,720 --> 01:13:50,280
been at it for a few years and
we're dealing with minute

1148
01:13:50,800 --> 01:13:54,480
complex things all the time.
So you know, even what I'm going

1149
01:13:54,480 --> 01:13:58,480
to say now is still very broad
brush strokey compared to the

1150
01:13:58,960 --> 01:14:02,000
level of granular problem that
we that you end up having to

1151
01:14:02,000 --> 01:14:04,560
grapple with.
So picking up on this prior

1152
01:14:04,560 --> 01:14:10,800
preference distribution, there
is this is the, this is the,

1153
01:14:10,840 --> 01:14:14,720
this the essential next, next
point is it's a matter of

1154
01:14:14,720 --> 01:14:19,240
prioritizing which of those
categories at anyone point in

1155
01:14:19,240 --> 01:14:25,680
time is going to be, is going to
be subject to, to, to, to

1156
01:14:25,680 --> 01:14:28,200
voluntary requires voluntary
behaviour.

1157
01:14:28,200 --> 01:14:32,920
In other words, the capacity to
change your mind, to choose one

1158
01:14:33,320 --> 01:14:36,680
path of action as opposed to
another.

1159
01:14:37,240 --> 01:14:41,680
You can't do that with all those
categories simultaneously.

1160
01:14:41,680 --> 01:14:44,600
You, you can't do everything at
once there.

1161
01:14:44,680 --> 01:14:49,480
There's a, there's a, an action
bottleneck and A and an

1162
01:14:49,480 --> 01:14:52,840
intentional bottleneck.
And it's they, they boil down to

1163
01:14:52,840 --> 01:14:56,200
being produced very similar
things, which is, which is

1164
01:14:56,200 --> 01:15:01,360
extremely interesting.
So it's a matter of I've got to,

1165
01:15:02,000 --> 01:15:10,560
I have a need which is heading
in into non viable territory and

1166
01:15:11,320 --> 01:15:15,800
I now need to institute a policy
as to how to satisfy this need.

1167
01:15:15,800 --> 01:15:20,320
In other words, how to return to
my preferred state, which is an,

1168
01:15:20,480 --> 01:15:23,280
which is not just a preference
in this, in this, it's, it's,

1169
01:15:23,280 --> 01:15:26,840
it's an existential requirement,
you know, so I've got to return

1170
01:15:26,840 --> 01:15:31,840
to my preferred state.
And so I act in accordance with

1171
01:15:31,840 --> 01:15:34,960
my policy.
And this is what voluntary

1172
01:15:34,960 --> 01:15:39,400
action boils down to.
I am able to register how well

1173
01:15:39,400 --> 01:15:41,920
or badly is this going before
it's too late.

1174
01:15:42,240 --> 01:15:47,280
That's the crux of why we feel
so those values I was talking

1175
01:15:47,280 --> 01:15:52,040
about don't only they the value
of it's good to survive and bad

1176
01:15:52,040 --> 01:15:54,760
to die.
You know, don't only work on a,

1177
01:15:55,080 --> 01:15:58,080
on the level of natural
selection over generations, but

1178
01:15:58,120 --> 01:16:02,680
for me now as a mortal system,
how do I know before it's too

1179
01:16:02,680 --> 01:16:05,960
late whether the, whether the
policy that I'm following is

1180
01:16:05,960 --> 01:16:10,040
succeeding or not?
And so it's feeling my way

1181
01:16:10,040 --> 01:16:16,000
through the problem and and
changing my behaviour

1182
01:16:16,240 --> 01:16:19,920
accordingly.
That is the mechanistic basis of

1183
01:16:19,920 --> 01:16:21,760
that is what Carl was just
talking about.

1184
01:16:22,000 --> 01:16:25,560
It is palpating my confidence in
the policy.

1185
01:16:26,200 --> 01:16:28,760
So the and that's got to do with
the precision.

1186
01:16:29,080 --> 01:16:33,560
So it's, it's modulating my
confidence, modulating the

1187
01:16:33,560 --> 01:16:39,000
precision in this policy versus
alternative, alternative

1188
01:16:39,000 --> 01:16:42,040
policies.
In other words, this policy or

1189
01:16:42,040 --> 01:16:46,240
some future policy changing your
mind at the system, changing

1190
01:16:46,240 --> 01:16:50,000
it's mind.
I don't hesitate to use the that

1191
01:16:50,000 --> 01:16:55,840
phrase as as it's going along.
And while it's doing that in the

1192
01:16:55,840 --> 01:17:01,520
in the prioritized category of
of need, the other needs are

1193
01:17:01,520 --> 01:17:08,000
being they can't be disregarded,
but they are being relegated to

1194
01:17:08,160 --> 01:17:11,720
automaticity.
So as so they're they're,

1195
01:17:11,720 --> 01:17:16,520
they're fixed precisions, the
policies I'm running those

1196
01:17:16,520 --> 01:17:19,440
policies on that one, but on the
and that doesn't have to be 1

1197
01:17:19,440 --> 01:17:20,240
prior.
It doesn't need.

1198
01:17:20,240 --> 01:17:22,680
It can be two conflict,
competing conflicting needs.

1199
01:17:22,680 --> 01:17:26,440
But the point is that there's a,
there's an attentional spotlight

1200
01:17:26,440 --> 01:17:29,760
in terms of what is going to be
subject to voluntary action.

1201
01:17:29,760 --> 01:17:33,520
In other words, to the palpating
of my precision in my action

1202
01:17:33,520 --> 01:17:36,760
policies as I go along.
And all of that is tethered to

1203
01:17:36,760 --> 01:17:40,880
feeling in, in the sense of this
is going well or badly in terms

1204
01:17:40,880 --> 01:17:43,640
of this particular category,
this particular quality.

1205
01:17:43,880 --> 01:17:48,800
Meanwhile, everything else, you
know, is, is relegated to

1206
01:17:48,800 --> 01:17:51,120
automaticity for this action
cycle.

1207
01:17:51,360 --> 01:17:55,320
But then what is to be
prioritized next, You know, in,

1208
01:17:56,520 --> 01:18:01,160
in, in each, in, in each sort of
artificially divided action

1209
01:18:01,160 --> 01:18:04,040
cycle?
It's, it's, it's the, the, the

1210
01:18:04,120 --> 01:18:08,400
focus may not shift to another
need or on the basis of another

1211
01:18:08,400 --> 01:18:12,200
opportunity.
And that too is all is all

1212
01:18:12,200 --> 01:18:14,240
regulated on the basis of
precision.

1213
01:18:14,400 --> 01:18:18,280
So it's a matter of precisions
in the needs and then precisions

1214
01:18:18,280 --> 01:18:21,840
in the policies that we're
following to meet those needs.

1215
01:18:22,400 --> 01:18:26,320
All of that has to do with the
modulation of precision and

1216
01:18:26,320 --> 01:18:29,160
coming back to functional
architectures and to actual

1217
01:18:29,160 --> 01:18:33,440
anatomical architectures.
This, this is what happens in

1218
01:18:33,440 --> 01:18:35,600
the brain, at least our
vertebrates.

1219
01:18:35,800 --> 01:18:41,200
That's the, the, the, the, the
part of the system that's that's

1220
01:18:41,320 --> 01:18:47,360
modulating this precision in all
the in in all of the sensory

1221
01:18:47,360 --> 01:18:52,880
motor message passing is the
reticular activating system or

1222
01:18:53,000 --> 01:18:59,040
these these arousal structures
which are, which are modulating

1223
01:18:59,040 --> 01:19:02,040
post synaptic gain.
So the functionality that we've

1224
01:19:02,040 --> 01:19:04,840
just described is the
functionality of those

1225
01:19:05,040 --> 01:19:07,400
anatomical systems in the
vertebrate brain.

1226
01:19:08,160 --> 01:19:10,560
So, you know, this is the kind
of thing that gives me

1227
01:19:10,560 --> 01:19:12,080
confidence beyond the right
track.

1228
01:19:16,840 --> 01:19:18,360
You.
You're muted, Tevin.

1229
01:19:19,760 --> 01:19:22,520
Thanks, Mark.
Carl, anything you'd like to add

1230
01:19:22,520 --> 01:19:25,360
to that?
And also while we edit, Mark, at

1231
01:19:25,360 --> 01:19:27,680
some point you can just tell us
as well some of the problems you

1232
01:19:27,680 --> 01:19:29,960
might be having on encountering
because you're actively working

1233
01:19:29,960 --> 01:19:32,600
on this.
Maybe Carl has some some some

1234
01:19:32,600 --> 01:19:34,400
answers to some of those
problems.

1235
01:19:37,440 --> 01:19:41,480
Just make a couple of just to
pick up on something that was

1236
01:19:41,480 --> 01:19:45,400
implicit but really important.
So notice that Mark where he's

1237
01:19:45,400 --> 01:19:48,920
actually getting into the job of
building machine consciousness.

1238
01:19:50,680 --> 01:19:57,920
Notice that everything was about
policies, which means that we're

1239
01:19:57,920 --> 01:20:01,000
talking about functional
architectures that support

1240
01:20:01,000 --> 01:20:03,120
agency.
So that's quite important.

1241
01:20:03,120 --> 01:20:05,280
You're not going to get
consciousness from a large

1242
01:20:05,280 --> 01:20:07,800
language model, because the
large language model doesn't do

1243
01:20:07,800 --> 01:20:10,880
the prompting.
It doesn't act upon the world.

1244
01:20:11,880 --> 01:20:14,600
So you have to have a, a
different kind of functional

1245
01:20:14,600 --> 01:20:19,920
architecture to have policies to
have in mind the consequences of

1246
01:20:19,920 --> 01:20:23,080
your actions and indeed to use
Mark's word, to feel your way

1247
01:20:23,080 --> 01:20:26,800
into the future and then select
the most likely and adjust in

1248
01:20:26,800 --> 01:20:30,080
the face of evidence that you
secure by pursuing this policy

1249
01:20:30,080 --> 01:20:32,200
or or that policy.
I thought it was just important

1250
01:20:32,200 --> 01:20:36,560
to say that, you know, there are
certain architectures that are

1251
01:20:36,560 --> 01:20:40,520
requisite if you ever want to
walk towards, you know, a

1252
01:20:40,520 --> 01:20:43,920
conscious and that notion of
agency.

1253
01:20:45,280 --> 01:20:49,160
I think it, it's just worthwhile
noting that the very word to

1254
01:20:49,160 --> 01:20:54,760
feel is a verb.
So to feel is not a state of I

1255
01:20:54,760 --> 01:20:57,160
am not in a state of being of
feeling.

1256
01:20:58,600 --> 01:21:01,800
Mark is the word palpate.
To feel is to palpate.

1257
01:21:02,240 --> 01:21:05,640
So what we're talking about is a
gain, something that is

1258
01:21:05,640 --> 01:21:07,640
quintessentially inactive and
agentic.

1259
01:21:07,840 --> 01:21:11,600
It's just agentic on the inside.
It's just mental action, action

1260
01:21:11,600 --> 01:21:13,320
on the inside.
If you're a psychologist, it

1261
01:21:13,320 --> 01:21:16,800
would be called attention if you
actually have to build, in the

1262
01:21:16,800 --> 01:21:19,960
spirit of Feynman, a machine
that has attention.

1263
01:21:20,000 --> 01:21:25,720
Hence my reference, possibly
disingenuous reference to

1264
01:21:25,720 --> 01:21:31,360
attention heads, but Mark is
referring exactly now to the the

1265
01:21:31,360 --> 01:21:37,920
kind, the precision that could
also that does the determines

1266
01:21:37,920 --> 01:21:41,120
what things are selected for
belief updating or committing to

1267
01:21:41,120 --> 01:21:44,840
a particular policy in exactly
the spirit that a psychologist

1268
01:21:45,080 --> 01:21:46,760
would think about attentional
selection.

1269
01:21:47,120 --> 01:21:50,400
So that gating, that
coordination, it's all action on

1270
01:21:50,400 --> 01:21:54,080
the inside, it's all acting and
it's all about palpating,

1271
01:21:54,120 --> 01:21:56,720
palpating the confidence, the
uncertainty.

1272
01:21:56,920 --> 01:21:59,920
And indeed, my one of my
favourite phrases from Mark is

1273
01:22:00,200 --> 01:22:03,520
felt uncertainty under eyes,
under eyes, quality of

1274
01:22:03,520 --> 01:22:06,640
experience, but it's an active
feeling.

1275
01:22:06,840 --> 01:22:10,000
So again, we come back to this,
this, and the final point is

1276
01:22:10,000 --> 01:22:14,320
that if you actually try to
simulate classical kinds of

1277
01:22:14,720 --> 01:22:20,000
either economics games or reward
learning games that evoke phasic

1278
01:22:20,000 --> 01:22:24,000
dopamine responses and transfer
from a condition to an

1279
01:22:24,000 --> 01:22:30,360
unconditioned stimulus, what you
see is that the brain's

1280
01:22:30,720 --> 01:22:37,000
evaluation of the precision of
the distribution of all the

1281
01:22:37,000 --> 01:22:41,080
policies I could take seems to
predict almost exactly

1282
01:22:41,080 --> 01:22:45,080
dopaminergic discharge.
And of course, that can go up or

1283
01:22:45,080 --> 01:22:47,520
it can go down.
So you've got failures for free

1284
01:22:47,920 --> 01:22:52,440
simply because the average of
the expected free energy just is

1285
01:22:52,440 --> 01:22:55,920
this entropy or neg entropy that
that mark is talking about.

1286
01:22:56,360 --> 01:22:58,680
Notice that there are lots of
other probability distributions,

1287
01:22:58,680 --> 01:23:02,760
you know, the state of the
world, beliefs in certain

1288
01:23:02,760 --> 01:23:05,520
contingencies or likely mappings
or transition dynamics.

1289
01:23:06,200 --> 01:23:09,720
But specific beliefs about what
I'm going to do next, beliefs

1290
01:23:09,720 --> 01:23:12,000
over policies or condition
probability, probability

1291
01:23:12,000 --> 01:23:14,560
distributions over policies,
they have an attribute of

1292
01:23:14,800 --> 01:23:17,920
precision.
And that seems to explain

1293
01:23:17,920 --> 01:23:23,160
exactly dopamine.
And it is the average expected

1294
01:23:23,160 --> 01:23:26,800
free energy.
So which can go up or down and,

1295
01:23:26,800 --> 01:23:28,360
and has sort of valence for
free.

1296
01:23:28,360 --> 01:23:30,480
So I think it's a beautiful
closure here.

1297
01:23:31,280 --> 01:23:35,440
You know, when you actually walk
the path that Mark is walking,

1298
01:23:36,320 --> 01:23:38,120
Mark is walking this path, I am
not.

1299
01:23:38,120 --> 01:23:40,400
So it's unlikely I'm going to
have any answers for him, but

1300
01:23:40,400 --> 01:23:42,120
I'd be very interested to hear
the questions.

1301
01:23:45,880 --> 01:23:49,360
Yeah, Mom, what's what's been
puzzling you guys the most,

1302
01:23:49,520 --> 01:23:52,920
would you say?
That that would take a very long

1303
01:23:52,920 --> 01:23:54,440
time.
There are many, many things.

1304
01:23:54,440 --> 01:23:58,040
The thing that's exercising me
the most and and I think we

1305
01:23:58,040 --> 01:24:01,600
might have time for me to ask
Carl a question in in this

1306
01:24:01,600 --> 01:24:04,120
direction.
It has to do with what I

1307
01:24:04,120 --> 01:24:07,800
mentioned earlier when I said I
think we need to draw up in

1308
01:24:07,800 --> 01:24:12,920
advance a list of functional and
behavioural criteria whereby

1309
01:24:13,520 --> 01:24:16,120
reasonably qualified
stakeholders, you know, can

1310
01:24:16,120 --> 01:24:19,120
reach a reasonable amount of
consensus about, you know, these

1311
01:24:19,120 --> 01:24:27,040
sorts of these sorts of tests.
If, if these boxes can be ticked

1312
01:24:27,600 --> 01:24:31,320
with sufficient number of them,
you know, then the weight of the

1313
01:24:31,320 --> 01:24:37,800
evidence is in favour of
inferring consciousness in such

1314
01:24:37,800 --> 01:24:42,960
an agent.
So we've been, I was at a

1315
01:24:42,960 --> 01:24:47,680
conference of all places in
Kathmandu a little while ago.

1316
01:24:48,000 --> 01:24:52,520
It was called that the focus was
not artificial consciousness,

1317
01:24:52,520 --> 01:24:55,840
but but, but non human
consciousness.

1318
01:24:55,840 --> 01:24:59,120
So there were, there were many
animal consciousness experts

1319
01:24:59,120 --> 01:25:02,320
there and artificial
consciousness people.

1320
01:25:02,320 --> 01:25:06,480
And we had a, a session in this
conference.

1321
01:25:06,760 --> 01:25:08,960
In fact, we broke up into little
groups and then we all came

1322
01:25:08,960 --> 01:25:13,640
together to give our the
outcomes of our discussions

1323
01:25:13,640 --> 01:25:19,360
where we were asked to agree
what were the tests for

1324
01:25:19,360 --> 01:25:23,600
consciousness that we found most
convincing, bearing in mind that

1325
01:25:23,600 --> 01:25:26,440
we're talking about tests which
have to be applicable both to

1326
01:25:26,720 --> 01:25:30,360
animals, non human animals and
and to artificial systems.

1327
01:25:30,880 --> 01:25:36,120
And the test that won the vote
as having the the highest

1328
01:25:36,120 --> 01:25:41,280
confidence of, of, of us experts
assembled in this conference was

1329
01:25:41,280 --> 01:25:44,960
something called the hedonic
place preference test.

1330
01:25:45,880 --> 01:25:51,080
So condition place preference
behaviour is what let's go back

1331
01:25:51,080 --> 01:25:53,320
to those zebra fish I was
talking about earlier.

1332
01:25:54,080 --> 01:25:57,440
They, they tend to hang out
where the food is delivered on

1333
01:25:57,440 --> 01:26:01,400
this side of the tank.
But if you then deliver on that

1334
01:26:01,400 --> 01:26:05,200
side of the tank as something
which does not have nutritional

1335
01:26:05,560 --> 01:26:10,920
value, but which does have
hedonic value, like since Carl's

1336
01:26:10,920 --> 01:26:16,520
speaking about dopamine, like
cocaine for example, then if

1337
01:26:16,560 --> 01:26:21,560
this, if these fish have
feelings, then you might get

1338
01:26:21,560 --> 01:26:23,800
them to prefer to hang out
there.

1339
01:26:23,960 --> 01:26:26,440
That you might predict that they
would prefer to hang out where

1340
01:26:26,440 --> 01:26:29,720
the cocaine is, even though it
has no nutritional value to

1341
01:26:29,720 --> 01:26:32,000
them, that it's only value is
hedonic.

1342
01:26:32,000 --> 01:26:33,840
In other words, it's felt it's
effective.

1343
01:26:35,400 --> 01:26:40,480
So the the the hedonic place
preference test is if the agent

1344
01:26:40,480 --> 01:26:45,960
shows that sort of behaviour,
then that's weighty evidence for

1345
01:26:45,960 --> 01:26:48,280
it having subjective feeling
states.

1346
01:26:48,720 --> 01:26:54,360
And the I want to just point
out, here's another thing that's

1347
01:26:54,360 --> 01:27:00,280
really been exercising my team
that to engineer a system that

1348
01:27:00,440 --> 01:27:04,000
that displays this sort of
behavior is not to engineer the

1349
01:27:04,000 --> 01:27:07,000
most efficient system.
It's to engineer a system which

1350
01:27:07,000 --> 01:27:10,160
can make mistakes, which can do
things which are not in its own

1351
01:27:10,160 --> 01:27:13,240
best interests, but it thinks or
feels that they are.

1352
01:27:14,000 --> 01:27:17,120
So you there, you have a gap
between the sort of hardwired,

1353
01:27:18,200 --> 01:27:21,520
forgive the phrase, you know,
the kind of RL type of thing,

1354
01:27:21,720 --> 01:27:24,360
and this feeling my way through
the problem.

1355
01:27:24,720 --> 01:27:28,000
And by the way, I have to add,
what Carl said is 100% true.

1356
01:27:28,000 --> 01:27:30,600
It's a verb.
It's pulpating your, your

1357
01:27:30,600 --> 01:27:33,480
uncertainty.
So one of the things that's

1358
01:27:33,480 --> 01:27:37,920
exercising us at the moment is
how do we engineer this kind of

1359
01:27:37,920 --> 01:27:43,040
functionality?
And it's, it's, it seems as if

1360
01:27:43,320 --> 01:27:47,880
it's, it's, it's certainly, it
is doable, but, but it's, I'd

1361
01:27:47,880 --> 01:27:51,440
love to before we close to hear
Carl's views about that, about

1362
01:27:51,440 --> 01:27:57,320
the both whether he thinks that
is a, a, a compelling test for,

1363
01:27:57,400 --> 01:28:03,040
for felt uncertainty and, or for
feelings and, and, and whether

1364
01:28:03,040 --> 01:28:08,800
he has any ideas about how one
would go about instantiating

1365
01:28:08,800 --> 01:28:12,360
this kind of distinction within
an artificial agent.

1366
01:28:16,520 --> 01:28:19,520
We've run out of time, but I
can't resist this noting.

1367
01:28:19,760 --> 01:28:23,840
So your, your solution then is
basically to ensure that we can

1368
01:28:23,840 --> 01:28:25,800
make computers into drug
addicts.

1369
01:28:25,800 --> 01:28:29,400
And if we can do that
effectively and simulate all

1370
01:28:30,080 --> 01:28:33,240
the, the, the perverse pleasure
of possibly suffering.

1371
01:28:35,000 --> 01:28:36,600
That's a brilliant idea.
I haven't thought about it.

1372
01:28:36,600 --> 01:28:39,400
I thought you were going to say
the Salian test or some sort of

1373
01:28:39,400 --> 01:28:41,080
theory of mind or perspective
taking.

1374
01:28:41,080 --> 01:28:44,000
But making limited drug addicts
is exactly the right thing to

1375
01:28:44,000 --> 01:28:49,040
do.
And I should just say that you

1376
01:28:49,040 --> 01:28:53,280
know that both Mark and I are
involved in a number of

1377
01:28:53,280 --> 01:28:56,280
institutions and and bodies who
are really trying to drill down

1378
01:28:56,280 --> 01:28:59,040
on this for the common good,
including the consume

1379
01:28:59,440 --> 01:29:03,880
organization and also the
California Institute for Machine

1380
01:29:03,880 --> 01:29:06,200
Consciousness are really
desperately trying to understand

1381
01:29:06,200 --> 01:29:08,640
these issues.
So some of the things that Mark

1382
01:29:08,640 --> 01:29:13,240
has said and I have said are
resonating with and probably

1383
01:29:13,240 --> 01:29:16,160
mimicking some of the
discussions that that are that

1384
01:29:16,160 --> 01:29:20,480
are that are ongoing with, with
a, a wide group of people, you

1385
01:29:20,480 --> 01:29:22,760
know.
So I just wanted to acknowledge

1386
01:29:22,760 --> 01:29:27,240
other sources of sort of or
perspectives on this issue and

1387
01:29:27,240 --> 01:29:30,240
why it's such an important issue
from, from, from many

1388
01:29:30,240 --> 01:29:32,840
perspectives, how you
instantiate it.

1389
01:29:32,840 --> 01:29:36,560
I think it's quite simple, you
know, and I'm sure Mark has

1390
01:29:36,560 --> 01:29:39,680
actually done this.
It's just basically to make sure

1391
01:29:39,680 --> 01:29:43,040
that you have as part of your
functional architecture, the

1392
01:29:43,280 --> 01:29:47,360
ability to palpate or to feel
your uncertainty, and that

1393
01:29:47,360 --> 01:29:50,840
necessarily introduces a certain
kind of hierarchical or

1394
01:29:50,840 --> 01:29:53,400
parametric depth to your
generative models.

1395
01:29:53,600 --> 01:29:56,560
It is unremarkable from the
point of view of statistician

1396
01:29:56,840 --> 01:30:00,840
because the whole point of
statistics is to estimate your

1397
01:30:02,040 --> 01:30:04,520
your felt uncertainty in the
form of standard error.

1398
01:30:04,720 --> 01:30:08,280
So people like Fisher and Box,
the whole of parametric

1399
01:30:08,280 --> 01:30:13,800
statistics was just invented to
get a feel for or a handle on

1400
01:30:14,000 --> 01:30:16,720
the uncertainty when making an
inference.

1401
01:30:17,040 --> 01:30:19,800
So yeah, the maths is there.
It is a question of putting that

1402
01:30:19,800 --> 01:30:24,720
into a computer architecture.
I think perhaps the tension

1403
01:30:24,720 --> 01:30:27,840
heads are baby steps in that
direction, but that's not good

1404
01:30:27,840 --> 01:30:30,040
enough.
Just having the mechanism to

1405
01:30:30,360 --> 01:30:36,320
exert the products of your felt
uncertainty does not actually

1406
01:30:36,520 --> 01:30:39,680
prescribe way, way, you know,
the actions of actually

1407
01:30:39,680 --> 01:30:42,360
estimating the standard error or
the uncertainty.

1408
01:30:42,600 --> 01:30:46,360
But, you know, in principle we
know, we know how to do that.

1409
01:30:46,400 --> 01:30:50,000
As a statistician, all Mark has
to do now is to build it into a

1410
01:30:51,160 --> 01:30:53,760
in in the spirit of Fineman.
Make one, and then he'll

1411
01:30:53,760 --> 01:30:57,520
understand it.
Well, gentlemen, this, this was

1412
01:30:57,520 --> 01:30:59,720
absolutely amazing.
Thank you so much.

1413
01:30:59,720 --> 01:31:01,440
It's truly an honor and
privilege to have you both

1414
01:31:01,440 --> 01:31:03,720
chatting together and I hope you
had a great time.

1415
01:31:03,720 --> 01:31:05,600
And it was an absolutely great
discussion.

1416
01:31:07,360 --> 01:31:09,920
Thank you for having us, Tevin,
and thank you, Carl.

1417
01:31:10,160 --> 01:31:13,240
It's always an enormous pleasure
to interact with you.

1418
01:31:13,920 --> 01:31:15,840
And I always learn something
new.

1419
01:31:16,000 --> 01:31:19,760
But this, this topic is the
closest to my heart at the

1420
01:31:19,760 --> 01:31:21,840
moment.
And so it's, it's, it's, it's

1421
01:31:21,840 --> 01:31:25,480
really enjoyable to be able to
engage with the, with the, with

1422
01:31:25,480 --> 01:31:29,320
the mind like, like Carl's and
to have a host like you, Tevin.

1423
01:31:30,360 --> 01:31:33,720
I, I want to under score in
closing, one thing that Carl

1424
01:31:33,720 --> 01:31:37,360
just said, which was which it
was in what he said.

1425
01:31:37,360 --> 01:31:42,120
But again, it needs, it needs
emphasis that we are working

1426
01:31:42,240 --> 01:31:45,720
both he and I together with
organizations who are concerned

1427
01:31:45,760 --> 01:31:50,920
about the ethics of all of this.
And so we are not, or at least

1428
01:31:50,920 --> 01:31:55,200
I, since it's me that's at that
particular coalface, I want to

1429
01:31:55,200 --> 01:32:00,280
reassure our audience that we're
not going at this like Cowboys

1430
01:32:00,280 --> 01:32:02,720
and we're not going at it alone.
Thank you.

1431
01:32:04,840 --> 01:32:06,560
Thanks.
Can I, can I also say thank you

1432
01:32:06,560 --> 01:32:08,200
before you all go away?
Thank you very much.

1433
01:32:08,200 --> 01:32:10,480
I really enjoyed that.
Until next time.

1434
01:32:12,720 --> 01:32:13,920
Cheers guys.
Thank you so much.

1435
01:32:14,160 --> 01:32:14,880
Have a great.
Thank you.

1436
01:32:15,120 --> 01:32:15,840
Thank you.
Bye.

1437
01:32:15,880 --> 01:32:17,160
Bye.
Bye.