Melnyk’s Realization Physicalism

Philosopher Andrew Melnyk’s approach to consciousness is a reductive but non-eliminative physicalism: phenomenal properties are real but non-fundamental mental properties, best understood as physically realized representational properties of sensations, while the “hard problem” arises largely from a misleading but psychologically formidable “intuition of distinctness” that makes such properties seem unable to be physical or functional, even though, in fact, they are. In other words, Melnyk defends a realization physicalism of phenomenal consciousness on which phenomenal properties (qualia) are not identical with any single neural property but are higher-order, multiply realizable representational properties that are always physically realized, and thus claims that the felt impossibility of phenomenal experience being entirely physical—the essence of the "hard problem"—is dissolved by rebutting the standard anti-physicalist arguments and then dismissing the residual intuition of distinctness as a cognitive illusion generated by the self-reflective, “conceptually encapsulated” nature of introspection (Melnyk, 2003, 2025; Melnyk & Sobrado, 2025).

Physicalism as a comprehensive, a posteriori thesis

Melnyk treats the mind–body problem as a special case of a general question about how the non-fundamental relates to the fundamental physical. His signature argument, developed in A Physicalist Manifesto (Melnyk, 2003), is to formulate physicalism not through supervenience but through a precisely defined relation of physical realization, and to assign it the epistemic status of a normal, though broad-scope, scientific hypothesis—something supported or undermined by empirical evidence rather than settled a priori (Melnyk, 2006, 2018, 2024). On this view, everything is either physical or physically realized; nothing escapes both categories. Mental properties are not denied, demoted to fictions, or treated as inexplicable emergent. The mental, like the biological and geological, is real but non-fundamental, a genuine pattern in the physical world rather than an extra ontological object. A dry-stone wall, he says, is every bit as real as the stones composing it.

Locating phenomenal consciousness

Melnyk distinguishes three uses of "conscious." Most commonly, it is a synonym for awareness or knowledge—being conscious of, or that, something—a property of organisms that form knowledge-bearing internal states. Self-consciousness is the special case in which those representations are directed at one's own mental states, that is, introspection. Phenomenal consciousness, the philosophers' term of art and the locus of the hard problem, attaches to sensations, emotions, and moods for which there is "something it is like." Phenomenal properties, for Melnyk, are simply the properties of sensations of which we are aware in introspection when we attend to them from the inside—for example, the "orangeness" of an orange afterimage, which is not orange in the sense in which the fruit is orange (Melnyk & Sobrado, 2025). He uses "qualia" with deliberate vagueness, leaving open whether such properties are immaterial, intrinsic, or representational.

Characterizing—and dissolving—the hard problem

Melnyk tackles the hard problem by requiring that it be stated precisely, lest the goalposts move indefinitely. He characterizes it as a clash of prima facie reasons to believe incompatible things: on one side, evidence that phenomenal properties just are physical—mainly the systematic empirical dependence of the phenomenal on neural properties, no introspectable experience lacking a simultaneous neural correlate, which, he asserts, physicalism explains more economically than dualism; on the other, philosophical arguments concluding that phenomenal properties could not be physical, namely Kripke's conceivability argument (Kripke, 1980), Jackson's knowledge argument (Jackson, 1982), Levine's explanatory gap (Levine, 1983), and Chalmers's zombie argument (Chalmers, 1996). Constrained in this way, Melnyk contends that the hard problem is not merely soluble but already solved, since each of the anti-physicalist arguments is open to serious, if controversial, objection. Melnyk thinks they all fail, though he acknowledges that no consensus exists.

A positive theory of phenomenal properties, while desirable, is not strictly required to solve the hard problem as he defines it. His representationalist account then supplies the positive proposal: phenomenal properties are physically realized representational properties, not nonphysical properties appended to neural life.

The positive account: unorthodox representationalism and realization

Melnyk stresses that a positive account of phenomenal properties is not required to solve the hard problem so characterized, but he offers one anyway, an “unorthodox representationalism”: phenomenal properties are one and the same as certain physically realized representational properties of sensations, not nonphysical properties imposed on neural processes. As he puts it, “I think that the orangeness of an orange afterimage is—is one and the same thing as—the afterimage’s property of representing (in a certain sensory way) that something before one is orange; and that the burningness of a burning pain is—is one and the same thing as—the pain’s representing that some part of one’s body is burning” (Melnyk and Sobrado, 2025). He says he means “something a little different” from the representationalism of Tye, Lycan, and Dretske, and he draws on Millikan's teleosemantics to ground sensory representation in biological function (Millikan, 1984). Such properties are not neurophysiological, yet are physically realized.

Realization is illustrated by the non-mental property being poisonous: poisonousness is not identical with containing cyanide—antifreeze is poisonous too—but is the higher-order property of having some property that causes illness in those who ingest it, a property whose realizer is always, as a matter of fact, physico-chemical though never the same in every instance. Realization entails supervenience but is neither bare supervenience, nor identity with the base property, nor synchronic efficient causation; the realizer instead furnishes a reductive explanation whereby, given the physical laws and circumstances, the mental property follows by deductive logic together with the necessity of identity. Token mental–physical identity is left open; type identity with a functional property is required.

The intuition of distinctness and mental causation

Melnyk's later work shifts the puzzle's center of gravity, explaining why phenomenal consciousness might seem obviously nonphysical “even if in fact it is.” He develops what David Papineau called the “intuition of distinctness”: the introspective sense that phenomenal thoughts or feelings simply could not be physical or functional properties. In other words, when we attend introspectively to phenomenal redness, pain, or nausea, it seems that the property before our minds could not literally be a physical, neural, functional, or representational property. Melnyk argues that this intuition is the psychological basis of anti-physicalist arguments and the widespread feeling that physicalism just cannot account for experience without residue, and that it underlies much resistance to physicalism and much of the force of conceivability-style arguments (Melnyk, 2025).

Melnyk's main move is to debunk: the intuition arises because introspection is conceptually encapsulated, leaving us unable to redeploy phenomenal concepts as we do for every other identity claim, and so unable even to imagine believing a phenomenal property to be physical. Although his argument may seem self-isolating and self-protective in form, because he claims that no plausible account of its genesis would show it tracking the truth, he argues that the intuition supplies no reason to adopt property dualism and may be disregarded in good conscience, even though, he seems to lament, it will not thereby disappear.

On causation, Melnyk admits weak, though real, top-down causation—mental and physical regularities holding at once without overdetermination, because the former are realized by the latter—while denying strong top-down causation that would violate physical law. A toothache can cause one to call the dentist, just as a substance's being poisonous can cause vomiting.

Note that Melnyk is emphatic that his representationalist positive account is, on his own framing, entirely irrelevant to dissolving the hard problem—which he takes to be already settled by refuting the anti-physicalist or dualist arguments. Collapsing the two, he takes to be the most common misreading of his position.

References

Chalmers, D. J. (1996). The Conscious Mind: In Search of a Fundamental Theory. New York: Oxford University Press.

Jackson, F. (1982). Epiphenomenal qualia. Philosophical Quarterly, 32(127), 127–136.

Kripke, S. (1980). Naming and Necessity. Cambridge, MA: Harvard University Press.

Levine, J. (1983). Materialism and qualia: The explanatory gap. Pacific Philosophical Quarterly, 64(4), 354–361.

Melnyk, A. (2003). A Physicalist Manifesto: Thoroughly Modern Materialism. Cambridge: Cambridge University Press.

Melnyk, A. (2006). Realization and the formulation of physicalism. Philosophical Studies, 131(1), 127–155.

Melnyk, A. (2018). In defense of a realization formulation of physicalism. Topoi, 37(3), 483–493.

Melnyk, A. (2024). From materialism to physicalism: An opinionated sketch. In J.

Symons & C. Wolfe (Eds.), The History and Philosophy of Materialism (pp. 439–455). New York: Routledge.

Melnyk, A. (2025). Phenomenal Properties and the Intuition of Distinctness: The View from the Inside. Oxford: Oxford University Press.

Melnyk, A., & Sobrado, T. (2025, October). On the problem of consciousness. The Montréal Review.

Millikan, R. G. (1984). Language, Thought, and Other Biological Categories: New Foundations for Realism. Cambridge, MA: MIT Press.

Papineau, D. (2002). Thinking About Consciousness. Oxford: Oxford University Press.