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It is time to give up the dualism introduced by the debate on consciousness

95 pointsby ahalbert4today at 2:59 AM229 commentsview on HN

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jillesvangurptoday at 10:25 AM

Neal Stephenson touches on this topic in several of his novels. Probably the most concrete of this is "Fall; or Dodge in Hell" which involves a simulation of people's scanned brains rediscovering qualia and constructing their own simulated world from scratch. In the book, two of the deceased digital "souls" eventually mate and produce digital offspring and the whole simulation starts consuming more and more resources.

His Baroque Cycle series also touches on this in several places. One funny side plot involves a freed African slave (Dappa) who speaks dozens of different languages and is highly intelligent and an aristocratic person who maintains that of course this former slave (who is obviously a lot smarter than this aristocrat) is just a trained monkey that naturally is not conscious even though he is quite clever with language. The same books also have a lot of side plots involving Leibniz and various attempts to build thinking/computing machines.

The Dappa plot is probably the closest to a lot of debates there will be around AGI with people likely to insist for all sorts of reasons rooted in philosophy, religion, etc. that even though the AGI walks, talks, etc. like a duck, it can't be a duck. At some point, we'll have AGI that pass any test we can think of and we'll still have people arguing that these cannot be conscious.

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pygy_today at 10:23 AM

FTA:

> Then he declared that there is another distinct problem — why the brain’s behavior is accompanied by experience at all — which he christened the “hard” problem of consciousness.

The hard problem isn't about "why", it's about "what it's like".

Try to explain what it's like to hear a major and a chord to a deaf person, or what it's like to see magenta to someone who's blind.

None of the things you say, sign or write will make them experience these sensations.

Ultimately no one but you can know what it's like to be you.

This doesn't mean that subjective experience can't be modeled. but the caveats that apply to models in general are relevant here too: none are correct, some are useful.

Dualism doesn't necessarily means that subjectivity is ineffable. Mind and matter could work like mathematical duals: platonic solids (cube vs octahedron, dodecahedron vs icosahedron, tetrahedron vs itself), Voronoi diagrams and Delaunay triangulations, etc... These are intimately linked, and you can generate one from the other and inversely, yet they have their own distinct properties.

dainanktoday at 10:22 AM

I believe nature is all there is. If we could replicate a human brain several times, and make each 'human brain' receive the exact same input data (sounds, sights, smells e.t.c.) from the moment they 'exist' until the end of their lifetime, I truly think that each of these brains will make precisely the same decisions (and each of these 'brains' would think they were conscious and in control of their lives).

In my eyes, consciousness is simply a natural phenomenon that can be explained but we just lack the understanding at this moment. Time and time again we have made this mistake of assuming there is something supernatural about the things we cannot comprehend and only a few centuries later it is completely understood scientifically. I think consciousness will be a similar case but will take more time.

jwilliamstoday at 7:50 AM

Rovelli is arguing (I think) that we need to fundamentally view consciousness as a natural phenomenon - albeit one that is extremely complex and poorly understood.

So we ditch the philosophical puzzle and focus on the reality we can perceive and reason on. The problem is that consciousness is a philosophical invention (and a slippery one at that).

We're in the wrong frame. If you accept consciousness is a thing you end up in this weird tautological state - it's not special, but we've put it in a special category.

If you view via a grounded, practical frame, you probably don't care about consciousness. The fact that it's undefinable is probably a major clue.

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selcukatoday at 3:43 AM

> This contradicts everything we have learned about nature.

It doesn't contradict anything. It simply means that there is a gap in our current understanding, which may (or may not [1]) be scientifically explained in the future.

The default reflex of the opponents of "the hard question" (i.e. those who deny the existence of such a question) is to attach a religious or spiritualist meaning to it, which is far from the truth. It's a question that arises from scientific curiosity that we hope to answer one day.

[1] The "may not" part does not imply that there is something magical or metaphysical about it. There are things that we may not ever answer, like "do parallel universes exist" or "was there another universe before the big bang".

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zetalyraetoday at 3:40 AM

The first point (analogizing the hard problem to the reaction to Darwinism) is a very common rhetorical move: an analogy and history of ideas, which is convincing to many people, but what does it prove?

> A philosophical zombie would claim to know what subjective experience is; otherwise, it would be empirically distinguishable from a human. Chalmers’s point is that the existence of the hypothetical, irreducible consciousness of which he speaks is something we can be convinced of only by introspection. During introspection, physical processes in my brain convince me of my consciousness. The same would theoretically happen in the zombie brain, convincing it of having consciousness as well.

And this is why illusionism is not a satisfactory explanation. "Convincing it". Who is being convinced? Who is experiencing this?

Imagine the easy problem of consciousness is solved: we understand the brain at every scale, from ion channels up. We can draw up a complete account, at every level of abstraction, of what goes on in the brain when you see and "apple" and say apple, and trace the signals across the optic nerve, map those signals to high-level mental representations, explain how those symbols become trees in a production rule which become words which the motor cortex coordinates into speech, etc. We can map every "pixel" of the visual field at any time t.

Now imagine you take this description and rewrite the labels consistently, and show it to an alien. And they see this very complex diagram of an information-processing machine and they're not sure what it's for. And they'd think it's as conscious as a calculator, or a water integrator, or a telephone network, or the futures market of the European Union.

Either all the computation happens "in the dark", as in a calculator or an Excel spreadsheet or a slide rule or Factorio, in which case we are p-zombies and consciousness is an illusion, which contradicts every waking moment of our experience (since consciousness and experience is all that we have); or, everything is conscious, from brains to slide rules and spreadsheets, and that is incredibly, and also has a number of problems (e.g.: why aren't my neurons individually conscious? Why does consciousness stop at my skull, that is, why is the causality of signal-trains in neurons more "conscious" than phonons in the hydroxyapatite crystals in my skull?).

That's the hard problem.

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hackinthebochstoday at 3:56 AM

I'm not sure where all this discussion about the hard problem is coming from suddenly, or why people continue to struggle to understand it. It's really very simple. The hard problem identifies the in principle difficulty in explaining phenomenal consciousness, something not definable in terms of structure and function, given only the explanatory resources of structure and function. It's like saying you can't explain facts about cats given only facts about dogs, they're just different categories of description. That's really all there is to it.

Whether or not physicalism has any hope of succeeding depends on whether there is a further conceptual or explanatory insight that when added to the standard structure and function explanatory framework of science, will ultimately bridge the gap. Who knows what that might look like. It's certainly premature to render a verdict on the possibility of this. But it should be clear that a full explanation in physical terms will need some new conceptual ideas and so the problem of consciousness isn't merely a scientific problem that will dissolve in the face of more scientific data, but a philosophical problem at core.

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MrOrelliOReillytoday at 9:17 AM

This article is pretty slim on details, but I agree with the general argument that dualism is unnecessary to explain phenomenal consciousness. The word "consciousness" has a lot of baggage, which causes us to mislabel cognition as consciousness. [1] This is why I really like using terms like "qualia" or _phenomenal_ consciousness to make explicit what we're talking about.

I still don't like this new trend of dismissing the hard problem altogether. We really don't have an explanation of phenomenal consciousness—it might even require novel physics to explain! [2]

I'd also like to point out that, though this might seem like a semantic argument, it has meaningful consequences for how we approach science and ethics. [3] For example, if we are physicalists and accept that phenomenal consciousness is a property of the world, what does this tell us about other unobservable properties of the world science may be missing? (Recall that we only know about phenomenal consciousness through our own experience of it; we cannot observe it in others)

[1] https://write.ianwsperber.com/p/what-is-the-color-blue

[2] https://youtu.be/DI6Hu-DhQwE?si=RB3qkt6PZ62SVpx3&t=2493

[3] https://write.ianwsperber.com/p/morality-without-consciousne...

hackandthinktoday at 6:54 AM

Chalmers: “It is natural to hope that there will be a materialist solution to the hard problem and a reductive explanation of consciousness, just as there have been reductive explanations of many other phenomena in many other domains. But consciousness seems to resist materialist explanation in a way that other phenomena do not.”

"A landscape of consciousness: Toward a taxonomy of explanations and implications"

https://www.sciencedirect.com/science/article/pii/S007961072...

venk12today at 7:47 AM

Philosophers have had these rifts(an similar lines of arguments) forever.

From Plato vs Aristotle (300 to 400 BC) (idea of forms vs nicomachean), In India Adi Shankara (around 700 CE) vs Madhavacharya (1200 CE) (dualism vs non-dualism) - there is a common thread to all of these arguments.

But eventually, for me it comes down to a statement J Krishnamurti made (& it makes the most sense to me): "The self is a problem that thought cannot solve"

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ben_wtoday at 8:58 AM

Copying what I said 9 days ago when this post first appeared but didn't catch enough attention and only got two replies including my own:

> I fail to make sense of the claim that there is such an “explanatory gap.”

This is essentially saying "I don't understand therefore you are wrong".

> We do not need to explain why it looks red for the same reason that we do not have to explain why the animal that we call “cat” looks like a cat. Why should we have to explain why “red” looks red?

We did in fact need this to get AI to recognise cats.

If we wish to actually know if some AI is or is not conscious, and not simply re-hashing conversations ancient Greeks will probably have had as animism faded from their culture and they stopped believing in dryads and anima loci, then it needs to be testable *by something outside the intelligence being tested for conscious*.

> Scientific knowledge is ultimately first-personal. The world is real, but any account of it can exist only from within it. Any knowledge is perspectival. Subjectivity is not mysterious

Mysteriousness isn't the problem with subjectivity, lack of repeatability is. This is why we make instruments to measure things: my "about the size of a cat" is subjective and likely different from yours, while my "31.4 cm" is only going to differ from yours if one of us is surprisingly bad at using a ruler; my "pleasantly warm" may or may not be yours, but my "21.3 C" will only differ from yours if one of our thermometers has broken.

The "hard problem of consciousness" is that we not only don't have a device to measure consciousness, but even worse than that we don't even know what its equivalent of a ruler or thermometer would do.

(At least for this meaning of consciousness; there's at least 40, we can at least test for the presence or absence of the meaning that e.g. anesthesiologists care about, but that's not the hard problem).

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jinconghotoday at 9:22 AM

The author is mixing two discussions: soul/body dualism and qualia (hard problem).

It could be true that there's only physical body, but still have the qualia explanatory gap.

solenoid0937today at 3:35 AM

Any argument that a "soul" exists or that consciousness does not arise from the physical world (eg our neurons) is literally unfalsifiable. It cannot be disproven in the same way you can't disprove the existence of God, and so arguing with people that believe in it is largely pointless.

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mrkeentoday at 8:15 AM

> The false “hard problem of consciousness” assumes upfront that there exists a metaphysical gap between mind and body.

Or a gap between my mind and the minds of the other commuters on this bus.

There are 15 or so biological machines here, but only one of them is being experienced in bright sound and colour.

usernametaken29today at 9:25 AM

The author should read up on embodied cognition. Their arguments have been discussed at length. It’s all old stuff really. Good stuff too. I don’t see how the article succinctly describes this or contributes otherwise

_under_scores_today at 8:52 AM

I may be misunderstanding the article but doesnt the fact that all other science and understanding sits on a continuum of which consciousness has (to my understading) to real footing mean that the problem is dualitic by definition? Thats not to say that it can't be 'brought into the fold', it may well be, but until it is it has no other place that to sit outside.

aledevvtoday at 8:45 AM

> ..idea anticipated centuries ago by the philosopher Baruch Spinoza: that our Soul could be a phenomenon of the same basic nature as any other phenomenon in nature.

Even the current Artificial Intelligence revolution is showing us that:

what was thought to be purely immaterial and intangible, that is, human abstract Reasoning and Thoughts, are actually tangible, physical, and even machine-reproducible.

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dcmintertoday at 9:18 AM

> can I believe my own conclusion of having this mysterious non-physical experience, knowing that if I were a zombie, I would be convinced of the same without actually having it?

The point of the philosophical zombie is that they don't experience anything, nor do they convince themselves of anything. If they're "experiencing" or "convincing themselves" then they're not philosophical zombies by definition.

We all (presumably, although I might wonder about the author) know that consciousness is a thing, we don't have anything like a rigid definition of it. Perhaps we never will, but this kind of hot air is unlikely to ever get us closer to understanding it.

Tiresome article by someone just being contrary for the sake of having something to say.

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Garleftoday at 7:13 AM

I'm all in the "brains cause minds" camp. But isn't the main argument here "We accept explanation gaps already in many places, why not also for consciousness?"?

My objection would then be that actually, that's not true. The real statement would be "In everyday life (including science), we accept explanation gaps already in many places"

But this does not mean that we have to accept this particular instance of an explanation gap.

mightyhamtoday at 4:08 AM

> It is because of the hundreds of years of astonishing and unexpected success of the sciences that have convincingly shown that apparent metaphysical gaps are never such.

This has to be one of the most dumbfounding pseudo-philosophical sentences I've ever read. Metaphysics by definition is unfalsifiable and unscientific; it exists on a parallel plane from empiricism and is derived only through intuition, reason, and for the religious revelation. If this guy's claim for material consciousness simply rests on an intuitive argument from induction, it suffices as a counter argument to say "If I am mistaken, I am".

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pyaambtoday at 8:47 AM

we are caught between an evolutionary need to know that our existence is meaningful and a universe that seems indifferent.

vermilinguatoday at 3:31 AM

This is hard to take seriously, the argument this article makes against the hard problem is… that it’s not hard? There is very little in the way of argument here at all, actually; it’s simply a refutation that there is any division between biological function and subjective experience, with no evidence or novel perspective to provide it any weight.

Ironically, I think this article serves as quite a strong defense of the hard problem, because it shows how hard it is to articulate or construct an argument against it at all.

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apex_slothtoday at 8:40 AM

The main value of this article is this absolute gold mine of a comment section.

Animatstoday at 3:44 AM

OK, dualism. Heard that before.

The new hard problem: how do biological brains get so much done on such slow hardware? That's a real physics question. We're missing something.

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colordropstoday at 8:36 AM

These conversations drive me insane. There isn't even an clear or even consensus definition of consciousness, yet here we are all acting like we are talking about the same thing. "It's right there, don't you see it? That's consciousness! We just need to define what it is so we can figure out if it's real or not".

Sankozitoday at 8:35 AM

The biggest benefit of term "consciousness" is that when I see something like "LLMs are not conscious" I immediately know that the author doesn't know what he is talking about.

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dtagamestoday at 3:35 AM

How exciting to see new writing from Carlos Rovelli! He's one of the few physicists and philosophers of science (ancient or modern) who steadfastly rejects a priori assumptions that rely on things other than our observations.

He also echos the modern belief that observer and actor are two sides of the same quantum event.

I highly recommend any and all of his books.

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enoehttoday at 4:40 AM

Rays of Light going through a me Prism where the Brain and senses can inflict action.

solveigatoday at 3:35 AM

I don’t think consciousness exists, at least not in the way people talk about it. First, there’s no clear definition that everyone agrees on. Second, there’s no way to test whether something has it. Does a cow have it? A dog? A spider? If you can't test for it and even define it, how can you claim its real?

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robwwilliamstoday at 5:27 AM

Good first step of demolishing (yet again) the phlogiston of the brain. Even Chalmers does not argue for the hard problem with any vigor today.

Rovelli’s arguments were made a dozen times over by Dan Dennett, and made better.

His critique of qualia is unsatisfying because it never reaches Einstein’s problem: what the heck is the physicist’s meaning and mechanism of this thing we call “Now”? Rovelli owes us that answer. He spent a decade telling us absolute time is not fundamental, no universal present, no master clock. Take the clock out of the universe and the Now gets harder, not easier: if there is no clock out there, what builds the one the organism plainly runs on? Answer that, then explain consciousness and qualia to the neurophilosophers.

Now is probably a process built by asynchronous wetware to survive. Humberto Maturana said the mechanisms that construct it are atemporal. And yet here we all are, reaching for clocks and synchrony to explain the Now. The irony should not be lost on Rovelli.

The neuroscience is in print already: Bickle et al., Eur J Neurosci 2025 (doi:10.1111/ejn.70074. interview with R. Williams) where the wall clock is named as neuroscience’s most tacit and least examined assumption.

light_hue_1today at 4:11 AM

There's a simpler way to state this: the easy problem is to understand the computations of the brain while the hard problem is to understand what experience the thing doing the computations has.

We understand everything a CNN or Transformer does, but we have no idea how to relate that to qualia. This may also be why we need to run endless tests and don't have a theory that let's us predict how well the network processes anything.

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freakyheretoday at 3:45 AM

I stopped reading when the author said science is not great as they claim to to be because when my cycle breaks down, I call a mechanic not a particle accelerator.

metalmantoday at 9:27 AM

blather. another example of weak blather of the weeeeeeee! I'm so full of words variety, that fails to interesting or memorable, like someone so high on mushrooms that they are claiming to be able to see there own ears, who if asked what consiousness is will give a similar answer, unless you ask how consiousness relates to rubber bands, which will get a similar answer with rubber band anologies.

Eisensteintoday at 4:10 AM

With consciousness and AI multiple problems are being smuggled into a single question.

1. How do we determine consciousness?

2. How should we handle moral consideration of a non-biological system?

The first question is a red herring. It cannot be answered. We need to focus on the second question.

ekianjotoday at 3:38 AM

Philosophers being philosophers and not advancing the discussion at all.

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roystingtoday at 9:52 AM

Many gave that up a long time ago. Welcome to reality, “experts” and “PhDs”.

trane_projecttoday at 4:02 AM

There is no hard problem of consciousness not because of the baffling arguments against it in this article, but because materialism is not true. This article and the entire description around the hard problem just shows the amount of mental gymnastics needed to deny what is front of everyone in every instant of their lives.

Matter and mind are not the same and mind is not produced from matter. That there are correlates between the body of a sentient being and the content of their experience is common sense but not proof that their body is causing the very ability to experience anything.

You would think that absolutely no progress being made on how dead matter somehow produces experience would make people question their assumptions. Instead you get people denying that they have a mind or just coping by thinking that if they map yet another correlation they will finally crack the code.

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greygoo222today at 3:26 AM

Utterly asinine article that doesn't understand its own subject matter.

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d--btoday at 3:42 AM

Where we are, it is still a matter of belief.

I do believe what the author claîms, but it’s not something that’s proven so far, so it can’t be imposed as fact.

The main consequence to the “soul” being physical is that free will is an illusion. And many people can’t stand this idea. People want to believe they are more than a deterministic physical process. They want to believe the future is not already written.

They’ll look for free will in what still stands : god or quantum uncertainty.

God can’t be disproved, and quantum uncertainty leaves room for a kind of mystery, that’s appealing.

But LLMs definitely do a convincing job at “faking consciousness”.

thin_carapacetoday at 4:00 AM

the single part of this article i enjoyed was the question "How can we know now what we would understand if we were to understand something we do not currently understand?" things were obviously the work of god for millenia. now they are obviously the work of natural processes. i wonder what the next obvious answer will be.

one may collapse the dualism dichotomy to two distinct possibilities. in both cases this existence is a subset of some larger existence (true because self implies other). the first case involves a hard boundary between existences (externally one may only only observe, therefore our existence collapses to pure solipsism). in the second case, the boundary between existences is permeable (one may interact with our existence externally, therefore our existence collapses to solipsism with the addition of brain in a jar). in both these cases soul can mean something different, but it can still be seen to exist, unless one insists on dogmatic adherence to the rules of any one system in particular.

redsocksfan45today at 9:55 AM

[dead]

cindyllmtoday at 4:53 AM

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saidnooneevertoday at 8:25 AM

consciousness is hard because it requires a special kind of belief. we humans believe a lot of things, but this one is difficult. all is one, and that one thing is all. everything contains gender. opposites are the same thing. these are all easy things that are hard to understand/believe.

Dont pretend like you dont believe anything is step 1.

deyiaotoday at 3:57 AM

Humans do not have souls, nor do they possess free will in the traditional sense. What we call “consciousness” is merely a product of evolution, and also a tool shaped by evolution.

In essence, consciousness is a complex information input-output system. When such a system reaches a certain level of complexity, it inevitably generates the concept of “I” as a way to simplify the processing of overwhelming information.

Praise be to AI. In 2025, inspired by AI, I feel that I have finally built a complete and unified worldview.

Are we living in a virtual illusion? Are there higher-dimensional rulers, gods, or immortals in the universe? What exactly are the human soul and consciousness?

I feel that these questions now share a single coherent answer. What I have written here is my answer regarding the soul and consciousness.

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dabadabad00today at 3:47 AM

Comically wrong.

Quantum holography will someday demonstrate an analog information capacity of the quantum domain far exceeding the spin disposition.

Our minds use this domain by mass entanglement within our very own neurons.

You don’t want to hear it, though our minds may entangle and an entire culture exists among us who can traverse and manipulate the consciousness of others. They are responsible for the “voices in our heads”, and these are related to a great deal of very unscientific activity in our world.

All of that occult demonology you smarties scoff at yet plagues everyone embroiled in “power” is based upon this phenomena. We are not alone in our own minds, and more than a few of you will be forced to confront this at some point in your lives.

Falsifiable? Theories, not existential reality are concerned with what minds may falsify. Science lags behind reality, not the other way around.

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