Philosophy of mind · a map

Verdicts on the conscious machine

Every theory of consciousness answers two questions. Is the mind computable — could a program, on the right substrate or any substrate, be one? And once you've mapped the mechanism, does anything remain unexplained? Plot those two axes and three centuries of the debate fall into place — Descartes's non-physical mind and Turing's imitation game at opposite corners, the hard problem strung across the top, a single Gödel theorem read in two opposite ways, and three later clusters the plot was missing: predictive processing (Seth, Barrett), enactive embodiment, and analytic idealism (Kastrup, Albahari). Balog then splits the hard problem in two — conceivable in thought, absent from the world. Schneider won't let a passing conversation settle the machine. Nishida sets both questions downstream of pure experience, which has not yet divided into a subject and a mechanism.


irreducible mystery buildable, unexplained new physics dissolves it mind is mechanism / pattern ◄ Non-computable · substrate-bound Computable · substrate-free ► Hard problem remains ▲ ▼ Mechanism suffices binding problem Gödel inversion Penrose Searle IIT · Tononi–Koch Nagel Chalmers Global Workspace Crick Ryle Dennett Hofstadter Descartes Faggin · QIP Bohm McGilchrist Panpsychism Block Turing Churchlands Kastrup Albahari Enactive Seth · Friston Barrett Nishida Schneider Balog

How to read this map

Position · two questions
←→Left to right — could a program be a mind? From non-computable & substrate-bound, to computable & substrate-free.
↑Bottom to top — once the mechanism is known, does anything remain? From “mechanism suffices” up to “the hard problem remains.”
The marks
Cyan node — a simulation would be or capture a mind.
Violet node — a simulation isn't enough (each for a different reason).
Gold arc — the Gödel inversion: Penrose and Hofstadter read one theorem two opposite ways.
Dotted line — the binding problem: rival mechanisms (gamma synchrony vs quantum) for one unified experience.

So the four corners read: irreducible mystery (top-left) · buildable but unexplained (top-right) · new physics dissolves it (bottom-left) · mind is mechanism / pattern (bottom-right).

Hover any node to highlight its dossier below — or hover a dossier card to find its place on the map.


Each card states the thinker's position. The quotation marks are editorial, except on a few well-known published lines.

Penrose & Hameroff

Orch OR · 1994

“Mathematical understanding is non-algorithmic — Gödel shows the mind outruns any formal system. Consciousness is orchestrated, gravitationally-induced quantum collapse in neuronal microtubules: new physics, not computation.”

Simulate it?No — by construction
Hard problem?Deferred to future physics

Francis Crick

The Astonishing Hypothesis · 1994

“‘You’ are no more than a vast assembly of nerve cells and their molecules. Map the neural correlates — gamma synchrony, the claustrum as conductor — and the soul dissolves into mechanism.”

Simulate it?Yes — once mechanism is mapped
Hard problem?Dissolved by neuroscience

“The self is a substrate-neutral strange loop — a symbol system that models itself. Gödelian self-reference doesn't defeat the machine; it's exactly what turns one into an ‘I’.”

Simulate it?Yes — the loop is the mind
Hard problem?No residue — qualia are the loop felt from inside

“Swap neurons for functional silicon and experience can't quietly fade or invert — organizational invariance. The copy is conscious. Yet no mechanism explains why there is experience at all: the hard problem.”

Simulate it?Yes — the copy is conscious…
Hard problem?…but real and permanent

Katalin Balog

Phenomenal Concept Strategy · 2012

“Zombies are conceivable and still impossible. Phenomenal concepts don't unpack into physical ones, so the explanatory gap stays in our thinking. It doesn't open a gap in the world. Mechanism is the whole story; the hardness is how that story is grasped.”

Simulate it?Yes — nothing ontological is left out
Hard problem?A conceptual gap, not a further fact

Daniel Dennett

Consciousness Explained · 1991

“The felt ‘extra’ is a user illusion. Account for every function — discrimination, report, control — and there is simply nothing left over to explain.”

Simulate it?Yes — nothing else to capture
Hard problem?A conceptual mistake

Integrated Information

Tononi & Koch · IIT

“Consciousness is integrated information — Φ, a system's intrinsic cause-effect power. A feed-forward digital copy can match the behaviour with near-zero Φ, so it would not be conscious.”

Simulate it?No — the copy has the wrong causal structure
Hard problem?Answered by identity: experience = Φ

“A program shuffling symbols by rule has syntax but no semantics — the person in the Chinese Room follows every rule yet understands no Chinese. Software isn't understanding; consciousness is a real biological power of brains.”

Simulate it?No — syntax isn't semantics
Hard problem?A biological effect, not computation

“There is something it is like to be a bat — a subjective point of view that no third-person, objective description reaches. Physical science leaves out the very feature that makes a state conscious.”

Simulate it?A copy still omits the point of view
Hard problem?Its original statement

Global Workspace

Baars & Dehaene

“Content becomes conscious when a global workspace broadcasts it to the whole system — perception, memory, report. Consciousness is a specific, findable information-processing architecture.”

Simulate it?Yes — reproduce the broadcast
Hard problem?Folded into access; the rest dissolves

Gilbert Ryle

The Concept of Mind · 1949

“The ‘ghost in the machine’ is a category mistake. Mind isn't an inner theatre behind behaviour — mental talk names dispositions to act. Hunt for an extra inner thing and you've misread the grammar.”

Simulate it?Yes — dispositions are all there is
Hard problem?A category mistake

Alan Turing

Computing Machinery & Intelligence · 1950

“Don't ask whether a machine can think — ask whether it can play the imitation game so well you can't tell. If its behaviour is indistinguishable from a mind's, the only workable convention is to grant it one.”

Simulate it?Yes — indistinguishable behaviour is the test
Hard problem?Set aside — we can't get behind behaviour

Susan Schneider

Artificial You · 2019

“A program that says it is conscious has not shown that anything is felt — a zombie can be scripted to say so. Ask instead whether it reaches for phenomenal ideas it was not fed, and whether experience survives when the tissue is swapped for a chip. A chip that works still needs an architecture that supports consciousness. Biology is not the verdict; the swap is the question.”

Simulate it?Not the imitation — substrate and architecture still open
Hard problem?Open for machines; behaviour won't close it

René Descartes

Meditations · 1641

“Mind and body are distinct substances — a thinking thing that is not extended matter. The ‘I’ that doubts cannot itself be doubted, and no mere mechanism could ever be it.”

Simulate it?No — mind is a non-physical substance
Hard problem?Its origin — the mind–body gap itself

“Consciousness is irreducible and primary — the inner experience of a quantum system in a pure state. Matter and classical computation are outer expressions; a digital machine can shuffle symbols forever and never feel. Quantum information is private (no-cloning), so qualia can't be copied onto silicon.”

Simulate it?No — classical info has no interior
Hard problem?Dissolved by making experience fundamental

“Mind and matter both unfold from one undivided holomovement — an implicate order enfolded beneath the explicate world of separate things. At the quantum level, active information is already mind-like; a fragmented classical machine never reaches that ground.”

Simulate it?No — the parts aren't prior to the whole
Hard problem?Softened — mental pole already at quantum level

“Two modes of attention, not a pop-psych split: the left takes the world apart into useful bits; the right holds the living whole. Culture has let the map rule the territory. Consciousness is an ontological primitive; matter is one way it shows up. AI can do the left's work and never make the right's leap.”

Simulate it?No — insight isn't a procedure
Hard problem?Kept — experience never emerged from dead stuff

Panpsychism

Goff · Strawson

“Rather than conjure experience from dead matter, take it as fundamental — a basic feature of the physical, present in some form all the way down. The gap closes because there was never a leap.”

Simulate it?Only if its matter already carries experience
Hard problem?Made fundamental — but now the combination problem

Ned Block

Access vs. Phenomenal · 1995

“Pull apart two things ‘conscious’ blurs: access-consciousness — information poised for use and report — and phenomenal-consciousness, what it is like. A system can have the first with none of the second.”

Simulate it?The access, yes; the phenomenal is a further question
Hard problem?Real — it lives in the phenomenal remainder

“The felt inner life is a theory — folk psychology — and a false one. There are no qualia to explain; as neuroscience matures, talk of them will follow phlogiston and caloric into disuse.”

Simulate it?Yes — there was never an extra thing to miss
Hard problem?A pseudo-problem about a non-existent thing

“You are a controlled hallucination in the service of staying alive. The brain is a prediction engine — Friston's free-energy principle — minimizing surprise between a generative model and incoming signal, interoception first. Consciousness is that process from the inside, not an extra glow.”

Simulate it?Yes — reproduce the predictive loop
Hard problem?Folded into inference; the rest dissolves

Lisa Feldman Barrett

Constructed emotion · 2017

“Feelings are not Darwinian stamp-modules waiting in the tissue. They are predictions about the body's energy budget — the same generative-model architecture as Seth–Friston, aimed at affect rather than at the visual scene. Interoception first; emotion as constructed, not detected.”

Simulate it?Yes — reproduce the predictive loop
Hard problem?Folded into inference; the rest dissolves

“There is no inner theatre a program could copy. Consciousness is sense-making by a living, world-coupled body — autopoiesis meeting the phenomenological tradition Genealogies parks at Merleau-Ponty. Francisco Varela (Chilean), Evan Thompson, and Eleanor Rosch's The Embodied Mind — argued out in Grounding — refuses both GOFAI and a brain-bound juice; Varela's later neurophenomenology asks first-person method to meet third-person data. A silicon replay of the neural syntax without the organism–world loop would miss the thing.”

Simulate it?No — not without the lived coupling
Hard problem?Refused — the inner/outer split is the setup

“Mind is the only fundamental category. What looks like a brain generating consciousness is consciousness appearing, from outside, as a brain — dissociation in one mind, not combination of micro-subjects. Panpsychism still starts from matter and tries to add experience; this inverts the picture.”

Simulate it?No — the world is already mental
Hard problem?Dissolved — matter was never the base

“Distinguish consciousness as such from the constructed subject. Indian sources — not Kastrup's dissociation metaphor — supply a Buddhist-analytic idealism: the hard problem is what you get when you start from a person-shaped mind that matter somehow has to generate. Consciousness was never that person.”

Simulate it?No — the world is already mental
Hard problem?Dissolved — the subject was never the base

Nishida Kitarō

An Inquiry into the Good · 1911

“The moment of seeing a color is prior to the judgment that a subject sees an object. Pure experience is that moment — the form of reality, not a private interior added to a mechanism. Subject and object are carved out of it afterward. A program that keeps a world-model for an agent has already made the cut, so it is a derivative structure, not the experience the cut was taken from.”

Simulate it?No — the agent-and-model is already downstream
Hard problem?Opens only after the split — not a second substance

Binding unites

The empirical programs meet on one puzzle: how scattered activity becomes a single field of experience. Crick's gamma synchrony and claustrum and Orch OR's quantum entanglement are rival mechanisms for the same unity — reductionist and quantum camps aiming at one target. Faggin takes entanglement further still: not a brain mechanism for binding, but the reason micro-experiences can compose at all. Bohm names the same unity as undivided wholeness — the binding problem is what you get when you start from fragments. McGilchrist puts the same fracture in attention: left-hemisphere bits versus right-hemisphere gestalt, with modern culture stuck in the map. Enactive refuses the starting fragments: there is no inner scene to bind if experience is already world-coupled sense-making. Seth–Friston bind by prediction — one generative model, one inferred self. Barrett aims the same architecture at affect: emotion as energy-budget prediction, not a module to bind.

Gödel splits

One theorem, two verdicts. Penrose: a mind sees truths no formal system can prove, so it can't be one. Hofstadter: a formal system rich enough to talk about itself is precisely what a mind is. The same self-reference is read as escape, and as origin.

The hard problem dissolves everything

Chalmers' solvent: neural, computational, or quantum — no mechanism entails why it should feel like anything. It's what lets him reject Penrose (“one mystery for another”) and the reductionists alike. Working ≠ understanding. Seth and Barrett bet the solvent is a mistake: once you have the predictive beast-machine — including constructed emotion — nothing remains. Varela says the question was ill-posed. Kastrup says matter was never the thing that had to generate mind. Albahari says the constructed subject was never the thing either. Balog keeps the solvent and relocates it: phenomenal concepts don't translate into physical ones, so zombies stay conceivable, but the world has no extra fact for them to be. Schneider agrees that working isn't feeling, and won't let the imitation game stand in for the difference — the chip swap is the unanswered question, not a result already in Chalmers's favour. Nishida locates the gap one step earlier than Albahari: not a person-shaped mind that matter fails to generate, but a subject and an object that pure experience has not yet distinguished.

The one thing the extremes agree on: a program that works is not the same as an account of why it's conscious — Penrose because he thinks the working program is impossible, Chalmers because he thinks it would be insufficient. Everyone between them is a bet that mechanism, once found, is the whole story. Schneider's disagreement is narrower: a program that passes for a mind in conversation has not shown that anything is felt, and a silicon swap is still an experiment.

Sources — Descartes, Meditations (1641) · Turing, ‘Computing Machinery & Intelligence’ (1950) · Nagel, ‘What Is It Like to Be a Bat?’ (1974) · Searle, Chinese Room (1980) · Ryle, The Concept of Mind (1949) · Penrose & Hameroff, Orch OR · Crick, The Astonishing Hypothesis (1994) & Crick–Koch NCC / claustrum · Hofstadter, GEB (1979), I Am a Strange Loop (2007) · Chalmers, Facing Up to the Problem of Consciousness (1995) · Balog, phenomenal concept strategy (1999–2012) · Schneider, Artificial You (2019) · Nishida, An Inquiry into the Good (1911) · Block, access/phenomenal (1995) · Tononi & Koch, IIT · Baars & Dehaene, Global Workspace · Goff & Strawson, panpsychism · Kastrup, analytic idealism (2014–) · Albahari, perennial idealism (2019) · Varela, Thompson & Rosch, The Embodied Mind (1991) · Friston, free-energy principle · Seth, Being You (2021) · Barrett, constructed emotion · Faggin & D’Ariano, Quantum-Information Panpsychism / Irreducible (2021–24) · Bohm, Wholeness and the Implicate Order (1980) · McGilchrist, The Master and His Emissary (2009) / The Matter With Things (2021) · P. & P. Churchland, eliminative materialism · Dennett, Consciousness Explained (1991). Atlas for the wider field: Kuhn, ‘A Landscape of Consciousness’ (2024) and loc.closertotruth.com — a catalog, not this plot’s theses.

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