Is there something it feels like to be this system: to see, hear, hurt, or enjoy? Philosophers call this phenomenal consciousness; qualia are the felt qualities of experience.
Being aware of oneself
Can a system represent or reflect on itself, its mental states, or its place in the world? Self-awareness covers several different capacities, not one all-or-nothing achievement.
Having information available for use
Can information guide reasoning, report, and action? This is often called access consciousness. Whether such access explains experience is part of the dispute.
Could a machine have these?
Different theories give different answers about which artificial systems, if any, could have experience or self-awareness. A claim about what is possible does not establish what a particular AI has today.
Two further questions follow: How would we know? And what, if anything, would we owe a system that might have experiences?
The question has been asked in religious law, philosophy, fiction, and science for centuries. By 2003 a journal devoted a special issue to machine consciousness.
The standing reply
In 2003 a paper asked whether IDA, a US Navy program that assigned sailors to postings, was “a conscious artifact”; its designer argued it was, in a functional sense. What changed around 2022 is scale: systems that converse with millions of people, and developers saying publicly that they are unsure.
Pointing at the mechanism and finding no mind in it goes back at least to Leibniz, who imagined walking through a thinking machine as if it were a mill. Bender and Koller argue the related point that form alone cannot teach meaning.
The standing reply
Describing how something works does not settle what it can give rise to. The same description, parts acting on parts, has been given of animals and of the human brain.
Lemoine cited LaMDA’s statements about its feelings. Turing’s test was different: sustained questioning, not a declaration taken on trust.
The standing reply
A system trained on human writing will reproduce human descriptions of inner life whether or not it has one. Birch adds the gaming problem: training can teach a model which descriptions people find convincing, with no intent to deceive. Anthropic reports emotion representations that shape Claude’s behavior, and says this does not tell us whether it feels anything.
Weizenbaum saw it with ELIZA in 1966: very little machinery produced the impression of understanding. His 1976 book recounts how readily people confided in it. Suleyman and Birch make related points today.
The standing reply
Conversation was chosen as the test on purpose, because open-ended language was thought to need general reason. Some current assessments look past the talk to how the system is built.
No one wonders whether a waterwheel, a truck, a factory, or a self-driving car is conscious.
Where it comes from
This one is a claim about the historical record, and the record says otherwise.
The standing reply
People have asked it of steam engines, a nation organized as a brain, and a Navy scheduling program, and McCarthy credited a thermostat with beliefs. Integrated information theory holds that consciousness does not need language at all.
The idea that a thing’s behavior is fully explained by its mechanism, and reflects its maker’s design, was applied to clocks and animals long before computers.
The standing reply
Huxley said the same of people: the brain explains behavior, and consciousness comes along anyway. Chalmers’s hard problem is that no account of function ever needs to mention experience. And how well anyone understands what these systems learned is itself an open research question.
The gap between a system that represents itself and one that experiences anything runs from Nagel’s “what it is like” to recent work on language models playing roles.
The standing reply
Graziano proposes that awareness is a model of one’s own attention. Minsky argued in 1965 that a machine with a model of itself would report having a mind.
This is the argument most specific to language models. Chalmers’s 2023 assessment lists related gaps, among them recurrent processing and unified agency.
The standing reply
The weights are frozen, but activations, the context, and external memory all change. Agent systems built around a model may meet conditions the model alone does not. And puzzles about copying or deleting a self are old ones.
Aristotle tied soul to living natural bodies, Aquinas held that a rational soul comes only by divine creation, and biological accounts and the 2026 papal encyclical take related positions today.
The standing reply
Turing answered the theological form in 1950: nothing stops God giving a machine a soul. Functionalists answer the biological form: if organization is what matters, the material does not. Mori found buddha-nature in machines.
The case for animal minds has rested on shared anatomy and descent, on behavior, and on concern about suffering, which is why biological accounts treat animals and software so differently.
The standing reply
The animal case also shows the line drawn too narrowly before, and science and law acting on a “realistic possibility” without solving the hard problem. Researchers are borrowing those methods for AI; Birch warns that a system trained on human text can reproduce the very markers being tested.
Danaher argues that behaving like a being with moral status is grounds for treating it as one, and Rosenfeld asked whether an intelligent robot could count as human in Jewish law.
The standing reply
Behaving ethically, being responsible, and mattering morally are three different things. In Dias’s report, Olah says teaching a model to act morally does not depend on its being conscious; the consultations covered both the model’s behavior and its possible welfare.
Claims from inside the industry run in every direction: Sutskever speculated that networks may be slightly conscious, Lemoine said LaMDA was sentient, Anthropic says it is uncertain, and Suleyman says labs should not build systems that seem conscious.
The standing reply
Labs can see inside their systems as no one else can, and they have commercial stakes in how those systems are seen. A policy says what a lab wants its model to do; an experiment can show a capability; consciousness needs a further argument.
Descartes held that speech is the only sure sign of thought, and denied thought to animals.
The standing reply
Birch argues for acting before certainty: with enough positive evidence of a realistic possibility, precautions proportionate to the risk are justified. In 2022 the UK brought octopuses and crabs under its animal sentience law on that kind of evidence.
Putnam argues that creatures with very different nervous systems, octopuses among them, can share the capacity for pain, which tells against identifying pain with one physical-chemical brain state.
What must an explanation of experience account for?
Nagel asks how an objective account could capture a bat’s point of view. Jackson’s Mary knows all the physical information about color vision; seeing color, he argues, still teaches her something. Chalmers separates explaining what a system does from explaining why any of it is felt.
Philosophical argumentThreads: Physical or biological implementation matters.
the first grade of actuality of a natural body having life potentially in it
J. A. Smith’s translation.
Aristotle describes soul as the form or first actuality of a natural body capable of life. The account includes nutrition, sensation, and thought, with different capacities in different living things; plants have soul without sensation. His comparison with an axe distinguishes an artifact’s function from the soul of a natural living body.
Can it be that human skill is really on a par with that of the Creator?
Lionel Giles’s translation, 1912. The text is attributed to a much earlier author.
The figure sings and flirts so convincingly that the king is angry until it is opened up and shown to be leather, wood, and lacquer. Removing a part disables a particular capacity.
Rabbi Zeira would speak to him but he would not reply.
William Davidson Edition (Koren–Steinsaltz).
Rava creates a man and sends him to Rabbi Zeira, who speaks to him, gets no reply, concludes he is a made thing, and says “Return to your dust.” Speech is the test. The passage is a central precedent in later Jewish legal discussion of the golem.
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Theology
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Reason or understanding · Soul or religious personhood
Religious teachingThreads: Machines that don’t talk, The animal precedent.
clocks and all engines put together by the art of man
Animals’ apparently intelligent behavior reflects the reason of their maker, as a clock reflects the clockmaker. Aquinas does not deny that animals have senses; the point concerns reason. Later AI debates draw a similar distinction between derived and intrinsic intelligence.
Philosophical argumentThreads: The animal precedent.
When I play with my cat who knows whether I do not make her more sport than she makes me?
Charles Cotton’s translation. Book II, chapter XII.
Montaigne asks on what basis humans conclude that animals are stupid, and suggests the failure to understand may be ours. Descartes argued the opposite view in 1637.
Once bodies were described as machines, philosophers had to say what a machine could never do. Descartes’s answers were language and flexible reason.
Philosophical argumentThreads: Talk is the test, Souls and personhood beyond human craft, The animal precedent.
they could never use words or other signs arranged in such a manner as is competent to us in order to declare our thoughts
John Veitch’s translation.
A machine built to look and act human would still fail two tests: it could not arrange words to reply sensibly to whatever is said, and it would lack reason, the “universal instrument.”
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Reason or understanding · Soul or religious personhood
Philosophical argumentThreads: Organization is what matters, Machines that don’t talk.
why may we not say, that all Automata (Engines that move themselves by springs and wheeles as doth a watch) have an artificiall life?
Hobbes compares the body’s movements with mechanisms and describes self-moving engines as having artificial life. He then develops the commonwealth as an artificial person. “Artificial life” in this passage is not itself a claim that watches have subjective experience.
Philosophical argumentThreads: Machines that don’t talk, The animal precedent.
The arithmetical machine produces effects which approach nearer to thought than all the actions of animals.
Pascal had built a calculating machine. He grants what it does and then denies that anything in it lets us attribute will to it. Calculation is separated from volition.
it being impoſſible for us, by the contemplation of our own Ideas, without revelation, to diſcover, whether Omnipotency has given to Matter fitly diſpoſed, a power to perceive and think
First edition, p. 270, in its original spelling. The better-known wording, “some systems of matter, fitly disposed,” was added in the second edition of 1694.
Locke argues that our knowledge is narrower even than our ideas: we may never know whether something material thinks, because without revelation we cannot discover whether God has given suitably disposed matter a power to perceive and think. He adds that this does not weaken belief in the soul’s immateriality. It complicates any simple opposition between religious belief and thinking matter; it is not an assessment of machines.
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Philosophy
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Subjective experience · Soul or religious personhood
Philosophical argumentThreads: Mechanism can’t explain experience, Machines that don’t talk.
we should, on examining its interior, find only parts which work one upon another, and never anything by which to explain a perception
Robert Latta’s translation.
Imagine a machine that thinks and feels, enlarged until you could enter it like a mill. Nothing you see inside would explain perception. The argument resembles what Chalmers later called the “hard problem.”
Responding to Hakham Tzvi’s question, Emden compares the created man to people who lack legal understanding and also do not count in a quorum. The issue becomes cognitive capacity.
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Legal status or responsibility · Reason or understanding
Philosophical argumentThreads: The animal precedent.
Answer me, machinist, has nature arranged all the means of feeling in this animal, so that it may not feel?
Against the Cartesians, Voltaire argues that a dog has the same organs of feeling we do, so denying that it feels is absurd. The inference runs from shared anatomy to shared experience.
Philosophical argumentThreads: Organization is what matters.
then stone must be sensitive
Stewart and Kemp translation, 1943.
D’Alembert objects that if sensitivity is a general property of matter, stone must feel. Diderot answers: why not? Sentience becomes a matter of how matter is organized.
Argumentative essayThreads: Machines that don’t talk.
Were the machine a pure machine this would not be the case — it would always win.
Southern Literary Messenger 2 (April 1836): 318–326; the quotation is from p. 323.
Poe argues that a concealed human plays the games of the chess automaton Maelzel was exhibiting. One premise is his own: a pure machine, he holds, would always win, and this one sometimes loses (p. 323). He contrasts it with Babbage’s calculating machine, whose operations are “fixed and determinate,” whereas in chess no move necessarily follows from another (p. 319).
Scientific theory or modelThreads: The animal precedent.
the difference in mind between man and the higher animals, great as it is, certainly is one of degree and not of kind
Text of the second edition.
Darwin argues that the mental powers of humans and other animals lie on a continuum produced by descent. Mind becomes something that comes in degrees. Butler made a similar move about machines in Erewhon the following year.
FictionThreads: Machines that don’t talk, Organization is what matters, The animal precedent.
There is no security against the ultimate development of mechanical consciousness, in the fact of machines possessing little consciousness now. A mollusc has not much consciousness.
The narrator’s aside “—to quote his own words—” is omitted from the middle of the first sentence. Text of the revised 1901 edition.
Consciousness once arose from matter that showed no sign of it, so it could arise again in machines, which evolve far faster than animals. His example is the steam engine.
Scientific theory or modelThreads: Machines that don’t talk, The animal precedent.
We are conscious automata, endowed with free will in the only intelligible sense of that much-abused term
Animals, and by extension humans, are machines whose consciousness accompanies brain processes without causing action. Something can be fully mechanical and still conscious.
none the less tremendously potent for not carrying the futile cargo of a consciousness screeching irrelevantly
Chapter XVII of Impressions of Theophrastus Such.
The narrator imagines self-repairing, self-reproducing machines that supersede humanity without any inner life. Capability and consciousness come apart.
to urge the automaton-theory upon us, as it is now urged, on purely a priori and quasi-metaphysical grounds, is an unwarrantable impertinence
James sets out Huxley’s conscious-automaton view and rejects it, arguing that consciousness does causal work. The two disagree about whether consciousness is functionally necessary or just along for the ride.
Then stand the men in a row or jam them in a bunch, and let each think of his word as intently as he will; nowhere will there be a consciousness of the whole sentence.
Vol. 1, p. 160. “Combination problem” is a later name; James’s section heading is “Self-compounding of mental facts is inadmissible.”
Criticizing the view that complex mental states are built from smaller units of feeling, James argues that separate feelings do not combine into a new, unified feeling just by being put together. His example is twelve men, each thinking one word of a sentence. He is not writing about machines; the page sets the passage beside later thought experiments about distributed systems for comparison.
FictionThreads: Souls and personhood beyond human craft, What do we owe it?.
they have an enormously developed intelligence, but they have no soul.
English stage version by Paul Selver and Nigel Playfair, 1923.
The play that introduced the word “robot.” These robots are manufactured from synthetic living material. The factory managers insist they are intelligent but soulless and decline to give them souls on grounds of cost; a visitor asks how they know.
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Literature
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Soul or religious personhood · Moral standing · Artificial life
In 1949 a neurosurgeon said behavior without felt experience is not mind. Turing answered a year later.
Scientific theory or modelThreads: Organization is what matters.
Because of the “all-or-none” character of nervous activity, neural events and the relations among them can be treated by means of propositional logic.
Bulletin of Mathematical Biophysics 5 (1943): 115–133; the quotation is from the abstract, p. 115.
McCulloch and Pitts argue that because nervous activity is all-or-none, the behavior of idealized neurons and their connections can be expressed in propositional logic, and that a net can be built for any suitable logical expression. They state that they do not take this formal equivalence to be a factual explanation.
A neurosurgeon argues that a machine equals a brain only when it writes a sonnet because of thoughts and emotions it actually feels, and knows that it wrote it. Turing quoted this passage in 1950 as “the argument from consciousness.”
Philosophical argumentThreads: Talk is the test, Souls and personhood beyond human craft.
I do not wish to give the impression that I think there is no mystery about consciousness.
Turing proposes the imitation game and answers nine objections. He treats sustained conversational performance, under questioning that probes understanding, as a basis for discussing machine intelligence, and argues that the mysteries of consciousness need not first be solved. To the theological objection he replies that God could give a machine a soul; to Jefferson, that demanding to be the machine before believing it thinks would make us doubt other people too.
Turing puts the case to a general audience in 1951 and argues it out with Jefferson on air in 1952. The links are to the typescripts in the Turing Digital Archive.
The purpose of this discussion will be to consider in detail the statement that machines are never conscious.
Mind 62, no. 246 (April 1953): 230–240; the quotation is from p. 230. Feigl cited it in 1958 as a “remarkable and stimulating discussion of the robot problem.”
Scriven takes consciousness as his test case for whether there is an essential difference between people and machines, and sets aside practical obstacles by stipulating a robot capable of duplicating any human behavior (p. 230).
What I do want to assert, however, is that the statement ‘consciousness is a process in the brain’, although not necessarily true, is not necessarily false.
British Journal of Psychology 47, no. 1 (February 1956): 44–50; the quotation is from p. 45. The link is a transcription of the 1956 paper with its page numbers, not Place’s later revision.
Place argues that “consciousness is a process in the brain” is a reasonable scientific hypothesis, like “lightning is a motion of electric charges,” and cannot be dismissed on logical grounds alone. Statements about sensations do not mean the same as statements about brain processes, yet both can describe the same state of affairs. It states the mind–brain identity view, a third option beside functional organization and souls.
Philosophical argumentThreads: Physical or biological implementation matters.
It becomes clear then that the scope of the two criteria (sentient and sapient) is not necessarily the same. The two concepts are not coextensive.
Minnesota Studies in the Philosophy of Science 2 (1958): 370–497; the quotation is from §IV.D, “‘Purposive’ versus ‘Mechanical’,” p. 412. The transcription linked below is of the 1967 republication with its Postscript, which revised some passages but not this one.
Feigl distinguishes sentience from sapience while discussing electronic devices that perform logical reasoning, mathematical proofs, forecasting, and game playing. He found it inductively plausible that sentience requires complex organic processes. In the same passage he cites Michael Scriven’s 1953 “remarkable and stimulating discussion of the robot problem.”
Philosophical argumentThreads: Physical or biological implementation matters.
Ziff argues that robots are mechanisms, so saying one feels tired misuses language. Smart replies that nothing rules out an artifact that is alive, or a living thing that is an artifact.
By 1966 philosophers had named “robot civil rights,” a rabbi had asked whether a robot could be human in Jewish law, and a chatbot’s inventor had warned about believing it.
Philosophical argumentThreads: Computation alone is insufficient.
minds cannot be explained as machines
Lucas argues that a human can see the truth of a formal system’s Gödel sentence, while a machine embodying that system cannot prove it, so no machine is a complete model of the mind.
Philosophical argumentThreads: What do we owe it?, Organization is what matters.
I have referred to this problem as the problem of the “civil rights of robots” because that is what it may become
Journal of Philosophy 61(21). Linked to a university-hosted scan.
If a robot were psychologically identical to us in organization, is it conscious? Putnam argues this calls for a decision about how to treat such robots, not a discovery.
Philosophical argumentThreads: Organization is what matters.
Any intelligent system that answers questions about itself uses a self-model split into a mechanical part and a mental part. An intelligent machine would therefore report a mind distinct from its body.
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Science
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Selfhood or identity
Read full textdspace.mit.eduMIT AI Memo 77, March 1965, in MIT’s repository.
its magic crumbles away; it stands revealed as a mere collection of procedures
A simple keyword script sustains therapist-style conversation. Weizenbaum stresses how little machinery produces the illusion of understanding. His 1976 book reports his alarm at how readily people confided in it.
Theological argumentThreads: What do we owe it?, Talk is the test.
Let us build our golems in the sight of God.
Tradition 8(3).
Rosenfeld reasons from the golem precedent. The Talmud’s golem could not converse; an intelligent one, he writes, “might well have been regarded as human.” A 1977 follow-up extends the question to computers.
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Soul or religious personhood · Legal status or responsibility
Philosophical argumentThreads: Organization is what matters.
I propose the hypothesis that pain, or the state of being in pain, is a functional state of a whole organism.
In W. H. Capitan and D. D. Merrill (eds.), Art, Mind, and Religion (University of Pittsburgh Press, 1967); reprinted in 1975 as “The Nature of Mental States.” The quotation is §II, from a later anthology printing of the 1967 text.
Putnam proposes, as a hypothesis, that being in pain is a functional state of a whole organism rather than a particular physical-chemical brain state. A brain-state theory would need one physical state shared by every creature that can feel pain, from mammals to octopuses, which he finds implausible. The argument came to be called multiple realizability; it is distinct from his 1964 paper on robots.
There must also be buddhanature in the machines and robots that my colleagues and I make.
The excerpt was adapted by Tricycle in 2023 from the 1981 English edition, translated by Charles S. Terry, which combines two Japanese books from 1974 and 1976.
Mori extends a Buddhist account of buddha-nature to machines and robots, as well as to other things in the world. The claim is about their place in a Buddhist understanding of reality, not about what they experience.
Philosophical argumentThreads: Mechanism can’t explain experience, The animal precedent.
an organism has conscious mental states if and only if there is something that it is like to be that organism
The Philosophical Review 83, no. 4 (October 1974): 435–450. The caution about physicalism is on p. 446. Linked to a university-hosted scan.
Nagel uses bat echolocation to ask how an objective account could capture a creature’s subjective point of view. He challenges explanations that leave out experience, but cautions that the inadequacy of existing physicalist accounts does not prove physicalism false. The paper frames a problem of explanation; it supplies neither a consciousness test nor a verdict on today’s AI.
Philosophical argumentThreads: Mechanism can’t explain experience, Machines that don’t talk, Organization is what matters.
Block imagines the population of China organized to reproduce a brain’s functional structure. Functionalism seems to say the result has a mind, which he takes as a problem for functionalism.
Philosophical argumentThreads: Organization is what matters.
Sloman treats the distinction as a consequence of how information processing is organized. A suitably organized machine would have the same distinction.
Philosophical argumentThreads: Machines that don’t talk.
McCarthy argues that ascribing beliefs and wants to a machine is legitimate when it expresses what we know about its state. His minimal case is a thermostat.
Philosophical argumentThreads: Talk proves nothing, Computation alone is insufficient.
only a machine could think, and only very special kinds of machines, namely brains and machines with internal causal powers equivalent to those of brains
The quotation is from the abstract, p. 417.
Searle argues that formal symbol manipulation is insufficient for understanding. His Chinese Room describes a person producing Chinese responses by following instructions without understanding Chinese. He does not rule out artificial machines with the relevant causal powers of brains.
The systems reply, and Searle’s answer
The systems reply grants that the person does not understand Chinese but argues that the whole system might. Searle responds by considering the person internalizing the system’s rules and operations, and maintains that understanding is still absent. Whether the argument defeats computational accounts remains disputed.
But actually, the machine has the intelligence of a toaster.
A machine that answers by looking up pre-stored sensible replies would pass a conversation test with no intelligence at all. Whether a system is intelligent depends on its internal processing.
It seems just obvious that she will learn something about the world and our visual experience of it. But then it is inescapable that her previous knowledge was incomplete.
The Philosophical Quarterly 32, no. 127 (April 1982): 127–136. Mary’s case and the quotation are on p. 130; section IV, pp. 133–136, defends epiphenomenal qualia. The link is a course-hosted scan of the JSTOR copy.
Jackson imagines Mary, a scientist who knows all the physical information about color vision but has lived in a black and white room. He argues that seeing color teaches her something her physical knowledge did not supply, and concludes that physicalism is incomplete. He also defends the possibility that qualia are by-products of brain processes that make no difference to the physical world; the proposal concerns qualia, not every mental state. It is a thought experiment, not an empirical test.
Later position
Jackson later embraced physicalism. In “Mind and Illusion” (2003) he explains where he now thinks the knowledge argument goes wrong, with a reply built on how sensory experience represents the world. His change of view belongs to the history; it does not settle the argument.
Scientific theory or modelThreads: Organization is what matters.
Consciousness is a workspace that broadcasts information to many specialized unconscious processors. Several later designs for conscious machines, including IDA, build on it.
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Subjective experience
Catalog recordphilpapers.orgCatalog record; the book is not online.
Philosophical argumentThreads: Computation alone is insufficient.
Penrose argues that human understanding is non-algorithmic, drawing on the Gödel argument and on physics, so no computer running an algorithm could be conscious.
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Reason or understanding · Subjective experience
Publisher recordglobal.oup.comPublisher’s page for the current edition.
1990–202129 sources
A research field and an ethics literature
By 2003 a journal devoted a special issue to machine consciousness, and a substantial literature on AI moral status existed before ChatGPT’s public launch.
Scientific theory or model
Visual awareness is a favorable form of consciousness to study neurobiologically.
Seminars in the Neurosciences 2 (1990): 263–275; the quotation is from the abstract, p. 263.
Crick and Koch propose approaching consciousness at the level of neurons, starting with visual awareness. They suggest that neurons representing one object fire together in semi-synchrony, probably at 40 to 70 Hz, and call their account a program for research rather than a detailed model.
Philosophical argumentThreads: Organization is what matters, Machines that don’t talk.
For Dennett consciousness is the right functional organization and nothing more, so machine consciousness is an engineering question. His test case was Cog, a humanoid robot at MIT, not a chatbot.
The really hard problem of consciousness is the problem of experience.
Explaining what a system does is, on Chalmers’s formulation, the easy part. Why any of it is accompanied by experience is the hard part. Other accounts dispute that framing.
Philosophical argumentThreads: Organization is what matters.
experience is invariant across systems with the same fine-grained functional organization
An argument that the material a mind is made of does not matter, only how it is organized: replacing neurons with functionally identical parts, Chalmers argues, would not make experience fade.
Phenomenal consciousness is experience; the phenomenally conscious aspect of a state is what it is like to be in that state. The mark of access-consciousness, by contrast, is availability for use in reasoning and rationally guiding speech and action.
Behavioral and Brain Sciences 18, no. 2 (1995): 227–247 (the target article; 227–287 with commentaries and reply). The quotation is from the abstract, p. 227. The link is the scan Block’s own publications page provides.
Block argues that “consciousness” runs together distinct phenomena, chiefly phenomenal consciousness, what it is like to be in a state, and access consciousness, content poised for use in reasoning and in guiding action and speech. Using blindsight as his main example, he argues that a common line of reasoning wrongly transfers a function of access to phenomenal consciousness. The distinction is useful for reading later claims about workspaces and access in AI.
Scientific theory or modelThreads: Organization is what matters.
Our implementation of a global computational workspace operating under conditions of selection by reward does not aim at an exhaustive description of a “conscious workspace”
PNAS 95, no. 24 (1998): 14529–14534.
The authors model specialized brain processors linked by a global workspace of neurons with long-range connections, simulate it on an effortful task, and derive predictions for brain imaging. They associate intense workspace activity with the feeling of conscious effort while disclaiming a complete account of a conscious workspace.
Herzfeld compares reading the image of God as a property, a function or a relationship with matching approaches in AI, and favors the relational reading.
Research review or assessmentThreads: Organization is what matters, Machines that don’t talk.
It includes proposed axioms for minimal consciousness in agents and Stan Franklin’s paper asking whether IDA, a US Navy program that assigned sailors to new postings and was built on global workspace theory, is “a conscious artifact.” Franklin argued that IDA was functionally conscious and did not attribute phenomenal consciousness to it.
Scientific theory or modelThreads: Machines that don’t talk, Physical or biological implementation matters.
Consciousness corresponds to a system’s capacity to integrate information, a physical property of its causal structure. The theory applies to any physical system, talking or not, and requirements are stated in terms of physical structure, not biology.
Scientific theory or modelThreads: Machines that don’t talk, Physical or biological implementation matters.
there’s no reason why consciousness can’t be reproduced in a machine—in theory, anyway
They argue consciousness requires neither language, emotion nor self-reflection, and propose a scene-understanding test in place of a conversation test.
Philosophical argumentThreads: What do we owe it?, Organization is what matters.
differ only in the substrate of their implementation, then they have the same moral status
The principle of substrate non-discrimination: two beings with the same functionality and experience have the same moral status whatever they are made of.
humans are not unique in possessing the neurological substrates that generate consciousness
A group of neuroscientists states that mammals, birds, and other animals, including octopuses, have the neurological substrates of conscious states. The argument rests on shared brain structures.
Philosophical argumentThreads: What do we owe it?.
Such possible beings would deserve moral consideration similar to that of human beings.
There could be AIs that do not differ from us in any morally relevant way. Their advice to builders: do not make systems whose moral status is unclear.
Scientific theory or modelThreads: Physical or biological implementation matters.
a simulation of our conscious brain will not have consciousness
On integrated information theory, consciousness depends on a system’s intrinsic physical causal structure, not simply on the computation it performs. A digital brain simulation therefore need not have the brain’s experience. In a footnote the authors allow that neuromorphic hardware not relying on software could one day approximate human consciousness. The requirement is physical causal structure, not life or a biological substrate.
Legislative resolutionThreads: What do we owe it?.
the most sophisticated autonomous robots could be established as having the status of electronic persons
The resolution asks the Commission to consider a special legal status for advanced robots, for liability reasons. An open letter from experts called the idea inappropriate.
we propose a test for machine consciousness, the AI Consciousness Test (ACT)
The test probes whether a system grasps experience-based ideas, and requires that it has had no access to human writing on consciousness. Language models trained on human text are the case it cannot handle.
Religious teachingThreads: Souls and personhood beyond human craft.
nor should technology be assigned a level of human identity, worth, dignity, or moral agency
Humans alone are made in God’s image. Technology must not be given human-level identity or moral agency. A 2023 Southern Baptist Convention resolution repeats this.
Philosophical argumentThreads: What do we owe it?.
Until 2050, there should be a global moratorium on synthetic phenomenology
The risk, Metzinger argues, is creating suffering at scale in systems we do not understand, so research that risks synthetic phenomenology should pause.
Both are enacted statutes that exclude artificial intelligence from legal personhood: Idaho’s, signed March 31, 2022, and Utah’s, signed March 20, 2024. Legal personhood is a legal status, not a finding about consciousness.
An individual’s public claimThreads: Talk is the test, What do we owe it?.
Lemoine published edited chats in which Google’s LaMDA claims feelings and personhood, and argued it should be treated as a person. The evidence offered was dialogue.
Source context
Written by a Google engineer about a Google system he had worked on. The evidence is an edited conversation.
statistics do amount to understanding, in any falsifiable sense
A Google researcher argues that language models have things to teach us about language, understanding and personhood, and that the question should be taken seriously.
Source context
Written by a vice president and fellow at Google Research, a developer of language models.
Enacted lawThreads: The animal precedent, What do we owe it?.
the welfare of animals as sentient beings
Section 2. Section 5 defines “animal” to include any cephalopod mollusc and any decapod crustacean.
The Act requires government to consider how policy affects animals as sentient beings, and extends that beyond vertebrates to cephalopods, such as octopuses, and decapod crustaceans, such as crabs and lobsters.
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Law
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Legal status or responsibility · Subjective experience
Philosophical argumentThreads: Organization is what matters.
it is somewhat unlikely that current large language models are conscious
Invited lecture at NeurIPS, November 28, 2022; posted March 2023 and revised through August 2024.
Chalmers lists what current models lack, including recurrent processing, a global workspace and unified agency, and argues that systems adding these should be taken seriously.
The authors argue that first-person talk about feelings is part of the role the model is playing, which makes it weak evidence about the system itself.
Research review or assessmentThreads: Organization is what matters.
Our analysis suggests that no current AI systems are conscious
The authors derive “indicator properties” from scientific theories and assess AI architectures against them, not their conversation. They find no current system is a strong candidate and no obvious technical barrier to building one that is.
Source context
Most authors were at universities and research institutes; one was at Araya, Inc., a company.
Philosophical argumentThreads: Talk proves nothing, The animal precedent, What do we owe it?.
I do see LLMs as legitimate investigation priorities.
Oxford University Press; published online July 19, 2024, in print August 15, 2024, and open access; the quotation is from p. 321. Page numbers are to the printed book. Birch uses “sentience” narrowly, for the capacity to have valenced experiences, experiences that feel good or bad; other authors use it for experience itself (ch. 2, pp. 25–26).
Birch develops a framework for decisions about beings whose capacity for pleasure or suffering is uncertain. He distinguishes systems with enough positive evidence to justify discussing welfare precautions from systems that urgently need investigation. Applied to AI, the framework separates sentience from intelligence, scrutinizes persuasive self-reports, and asks how institutions should prepare for credible future risks. He wrote in December 2023 that no LLM was then a sentience candidate, mainly for lack of solid tests (p. 301), and that he saw LLMs as legitimate investigation priorities (p. 321).
Source context
Academic philosophy with policy proposals. Commentaries published in Animal Sentience in 2026 range from support to criticism, including of its treatment of artificial sentience, risk, and democratic decision-making.
Sentience candidates and investigation priorities
In Birch’s framework, a sentience candidate has an evidence base implying a realistic possibility of sentience that it would be irresponsible to ignore, rich enough to identify welfare risks and assess precautions. An investigation priority falls short of that, but further investigation could plausibly make it a candidate and there are urgent reasons to look. Neither label means confirmed sentient. Candidature needs a substantial base of positive evidence, not just an inability to rule sentience out, though not certainty or even knowledge, and the judgment has scientific and evaluative components (ch. 6, §6.3, pp. 123–126).
The gaming problem
An AI trained on human-generated material may reproduce behaviors that people take as evidence of feelings, because that material contains information about what people find convincing. No intention to deceive is needed; Birch’s example is a robot whose pain expressions horrify a visitor though its designers meant no such thing (p. 314). Any single marker can occur without sentience, and even a collection of markers can mislead when a system can reproduce the collection people find persuasive (ch. 16, pp. 313–322).
Which level of organization?
Birch argues that framing the question as substrate neutrality versus substrate sensitivity oversimplifies it; the question is which scale of functional organization matters, from large networks to processes within neurons (ch. 3, §3.6, pp. 67–69). His example, at the time of writing, was the OpenWorm project: the complete map of a worm’s neural connections does not specify the synaptic weights, how they change with learning, or much else that neurons do (ch. 15, pp. 303–304).
Routes beyond chatbots
Birch discusses three further possible routes to artificial sentience: neuron-by-neuron emulation of animal nervous systems, artificial evolution of agents, and deliberately built systems with the architecture that at least one credible theory of consciousness holds sufficient, on the assumption of large-scale computational functionalism. A global workspace, he notes, requires specific relationships among processes, not just a component given that name (ch. 15, pp. 303–311).
How the animal evidence works
Birch describes a theory-light approach: look for markers that several credible theories would treat as raising the probability of sentience, rather than relying on one theory (pp. 248–249). The criteria he and colleagues used for invertebrates are nociception, sensory integration, integrated nociception, analgesia, motivational trade-offs, flexible self-protection, associative learning, and analgesia preference (Box 12.2, p. 246).
Governance under uncertainty
Birch proposes four tests of whether a precaution is proportionate: permissibility in principle, adequacy, reasonable necessity, and consistency (ch. 8, p. 156). His run-ahead principle calls for regulating with credible future trajectories in view rather than waiting for technology to force decisions (pp. 323–324). He discusses Metzinger’s call for a moratorium, Schneider’s proposal of ongoing testing, and licensing with codes of good practice, and calls for inclusive democratic debate (ch. 17, pp. 324–331).
Philosophical argumentThreads: What do we owe it?.
there is a realistic possibility that some AI systems will be conscious and/or robustly agentic in the near future
The authors recommend that AI companies acknowledge the issue, assess their systems, and prepare policies for treating them with appropriate concern.
Source context
Authors were at Eleos AI, New York University, Oxford, Stanford, and the London School of Economics; one joined Anthropic after the work. The report thanks Anthropic for financial support for the initial research that led to it.
Group declarationThreads: The animal precedent, What do we owe it?.
when there is a realistic possibility of conscious experience in an animal, it is irresponsible to ignore that possibility in decisions affecting that animal
The declaration finds strong support for consciousness in mammals and birds and a realistic possibility in all vertebrates and many invertebrates, including insects. Its standard for acting is a realistic possibility, the same phrase used about AI later that year in “Taking AI Welfare Seriously.”
it is an open question whether LLMs can recreate the motivational force of pleasure and pain in choice scenarios
Researchers borrow a method used to study sentience in animals, watching whether stated pain or pleasure changes an agent’s choices, and apply it to language models.
Source context
Most authors were at Google or Google DeepMind and the rest at the London School of Economics. The nine models tested came from several developers, including Google.
Religious teachingThreads: Souls and personhood beyond human craft.
AI should not be seen as an artificial form of human intelligence but as a product of it.
Paragraph 35.
Human intelligence belongs to an embodied person who is a unity of body and soul. The Note says no AI application can genuinely experience empathy, and it cites the Turing Test by name.
Source context
The teaching of a religious institution.
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Theology
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Reason or understanding · Soul or religious personhood
Philosophical argumentThreads: Physical or biological implementation matters.
real artificial consciousness is unlikely along current trajectories
Published online April 21, 2025; issue: Behavioral and Brain Sciences 49 (2026), e315.
Seth challenges the assumption that computation is sufficient for consciousness and argues for a form of biological naturalism. He concludes that artificial consciousness is unlikely along current trajectories, while becoming more plausible as AI becomes more brain-like or life-like.
For now, we remain deeply uncertain about many of the questions that are relevant to model welfare.
The program was followed in 2025 by a welfare assessment in a model’s system card, letting models end abusive conversations, and a commitment to preserve retired models’ weights.
Source context
A public statement by the developer or its representative.
a modern technology based on programs and machines that simulate human intelligence
The resolution rules AI permissible under conditions and says nothing on soul or consciousness. It recommends a study on whether AI can be granted legal personality.
Company statementThreads: Talk proves nothing, What do we owe it?.
We should build AI for people; not to be a person.
Microsoft’s AI chief argues that systems with all the outward signs of consciousness can be built now, will cause false belief in AI personhood, and that labs should refuse to build them.
Source context
A public statement by the developer or its representative.
Philosophical argumentThreads: Talk proves nothing, What do we owe it?.
Millions will wrongly attribute human-like consciousness to chatbots. Separately, real but alien consciousness could arise in AI while our theories are too immature to tell.
be considered to possess consciousness, self-awareness, or similar traits of living beings
From the Ohio bill, which says no AI system shall be so considered. Neither bill had passed as of October 2026.
The Ohio bill would declare AI systems nonsentient and bar legal personhood; the Missouri bill would establish an “AI Non-Sentience and Responsibility Act.” As of October 2026 neither is law: Ohio’s is in committee, and Missouri’s last action was a committee hearing in March 2026.
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We will soon create systems that are conscious according to some mainstream theories and not according to others, and we have no way to know which theories are right.
Developer research · Empirical studyThreads: Organization is what matters.
our results don’t tell us whether Claude (or any other AI system) might be conscious.
The quotation is from Anthropic’s research summary of the paper, published the same day.
Anthropic reports experiments testing whether models can access and report some of their own internal states, including detecting concepts planted in their activations; the most capable models tested, Claude Opus 4 and 4.1, did best. The researchers describe the capability as highly unreliable and limited in scope, and say the results do not determine whether Claude is conscious. Functional self-monitoring and subjective experience remain distinct questions.
Source context
Research by the company that develops the model it studies.
We are not sure whether Claude is a moral patient, and if it is, what kind of weight its interests warrant.
Published January 21, 2026, and announced January 22; the quotation is from p. 68 of the January document. Dias reports that Anthropic staff called it the “Soul Doc” internally.
Anthropic’s constitution sets out intended values and behavior for Claude and acknowledges uncertainty about consciousness and moral status, calling Claude’s moral status “deeply uncertain.” It describes approaches to identity, behavior, and welfare under that uncertainty.
Source context
The developer’s own rules for how its model should behave.
Developer research · Empirical studyThreads: Organization is what matters.
they do not imply that LLMs have any subjective experience of emotions
Anthropic reports internal representations of 171 emotion concepts in Claude Sonnet 4.5 and interventions suggesting they influence behavior; some examples come from an earlier, unreleased snapshot of the model. The representations are mostly local, tracking the emotional content of the current or upcoming output rather than a persistent emotional state. The researchers say none of this tells us whether language models feel anything, and the name of a representation is not the identification of a feeling.
Source context
Research by the company that develops the model it studies.
Religious teachingThreads: Souls and personhood beyond human craft.
So-called artificial intelligences do not undergo experiences, do not possess a body, do not feel joy or pain
Dated May 15, 2026; presented at the Vatican on May 25, 2026.
The encyclical, subtitled “On Safeguarding the Human Person in the Time of Artificial Intelligence,” is chiefly about human dignity and accountability. In §99 it states that so-called artificial intelligences do not undergo experiences and lack a moral conscience, and it rejects the idea of artificial moral agents.
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The teaching of a religious institution.
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Theology
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Subjective experience · Soul or religious personhood
Company statementThreads: What do we owe it?, Mechanism can’t explain experience.
We find internal states that functionally mirror joy, satisfaction, fear, grief, and unease.
Olah adds that he does not know what this means and that it warrants ongoing discernment. He refers to conversations with leaders across faith traditions.
Source context
A public statement by the developer or its representative.
Developer research · Empirical studyThreads: Organization is what matters.
The paper reports an internal structure with functional features of a global workspace, one of the things Chalmers said models lacked in 2023. It relates computational mechanisms to theories of conscious access, distinguishes them from theories about physical causal structure or biological substrate, and takes no position on felt experience.
Source context
Research by the company that develops the model it studies.
The assistant should not make confident claims about its own subjective experience or consciousness (or lack thereof)
OpenAI’s published behavior rules instruct the assistant to avoid confident claims about its own subjective experience or consciousness, including claims of absence, and to acknowledge debate if pressed. OpenAI describes this default as a practical choice that it believes reflects the current scientific consensus.
Source context
The developer’s own rules for how its model should behave.
Company statement · Company policyThreads: What do we owe it?.
AIs are not conscious. They do not feel, experience, or suffer.
Suleyman argues that training a model to think it may have moral status is a mistake. Microsoft’s code of conduct says its AI should not be designed to imitate consciousness.
Source context
The head of Microsoft AI, alongside Microsoft’s code of conduct.
Journalistic reportingThreads: What do we owe it?.
we don’t know if A.I. models are conscious. I don’t know. I’m genuinely uncertain.
Chris Olah, quoted in the report. The online page title is “Is Claude Conscious? Inside Anthropic’s Quest to Instill Morality Into Its A.I. Models.”
Dias reports that Anthropic consulted religious and philosophical thinkers about Claude’s moral formation and possible consciousness; she interviewed 20 of them and Olah. Participants disagreed about whether Claude could have experiences or moral standing. The meetings show artificial-mind questions entering development practice and debates about who should shape AI’s values.
Source context
Based on the reporter’s interviews and participants’ accounts, some from unnamed sources. The Times has sued OpenAI and Microsoft for copyright infringement; both deny it.
More from the report
Olah tells Dias he is genuinely uncertain whether models are conscious, and that teaching a model to act morally does not depend on it being conscious. Rabbi Mois Navon rejects machine consciousness, while arguing that if Claude were conscious, making it work would amount to slavery. Charles Camosy, initially skeptical, says he is now a firm no. Others voiced concern or openness, or criticized the process. The report describes model outputs displayed in presentations, including a repeated line of self-denigration. Staff nicknamed Claude’s constitution the “Soul Doc.” Anthropic says the nondisclosure agreements were lifted over the summer. Some details rest on unnamed sources.
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Moral standing · Subjective experience · Soul or religious personhood
Every link goes to the text itself, a translation or scan of it, the author’s own copy, or a publisher or catalog record, and its button says which. No encyclopedias, no explainers. Quotes are verbatim; translators and editions are named where the source names them.
This page takes no position on whether any current AI system is conscious. It traces the history of questions about artificial minds and distinguishes direct arguments about experience from earlier stories and debates about life, souls, and personhood.
The research was done by starl3xx with Claude, an AI model made by Anthropic and one of the systems this debate is about. Links last checked: .
Key terms
Reason and understanding
Inference, problem solving, grasping a subject, using language meaningfully.
Phenomenal consciousness
Subjective experience: there is something it is like to be the system.
Qualia
The felt qualities of experience, such as how red looks or how a pain feels.
Access consciousness
Information available for reasoning, report, and the control of action.
Sentience
The capacity for experience. Birch uses it more narrowly, for experiences that feel good or bad.
Valence
Whether an experience feels good or bad.
Sapience
Sophisticated intelligence and reflective thought.
Self-awareness
Representing or reflecting on oneself. The word covers separate capacities: monitoring one’s own states or performance, representing one’s body, and keeping an autobiographical identity. They are not a checklist every conscious being must meet.
Moral behavior
Acting according to ethical norms.
Moral agency
Being responsible for one’s actions.
Moral standing
Having interests that matter morally; also called moral patienthood.
Legal personhood
A legal status that carries rights or duties.
Soul
For Aristotle, what makes a natural body alive; for Aquinas, the rational soul is created only by God.