Wittgenstein's Grammatical Fiction

Philosopher Ludwig Wittgenstein offers not a theory of phenomenal consciousness but an argument that the demand for one rests on grammatical confusion—treating sensation-words as names of private inner objects, on the model of nouns naming public things. His later work does not deny that we feel pain or see red; it denies that the felt quality is what sensation-language refers to, holding that "an 'inner process' stands in need of outward criteria" (PI §580) and that avowals are expressions rather than descriptions. The sensation, he insists, "is not a something, but not a nothing either" (PI §304)—a formula that blocks both the inner-object picture and the behaviorist/eliminativist readings. Yet his final years were occupied with aspect perception, where experience changes though the object does not, and where he held that physiological explanation leaves the psychological concept untouched. His work is at once the principal resource for deflationary treatments of qualia and their principal target.

In other words, Wittgenstein’s theory of consciousness is not a specific ontology of mind but a grammatical therapy for the philosophical confusions generated by treating phenomenal consciousness as this private inner object. He does not dismiss pain, imagery, emotion, thought, or first-person immediacy; he rejects that their intelligibility depends on an intrinsically private mental theater whose contents are named by inner ostension (inner pointing or designation). His central contribution to consciousness studies is to relocate questions about experience from hidden metaphysical entities to the public, embodied, rule-governed practices in which words such as “pain,” “seeing,” “thinking,” “remembering,” and “conscious” have their life (Wittgenstein, 1922/1961, 1953/2009; Hacker, 1990; McGinn, 1997).

From the Tractatus to Grammar

The early Wittgenstein of the Tractatus treats language, thought, and world through logical form: meaningful propositions picture possible facts, while metaphysical, ethical, aesthetic, and solipsistic propositions exceed what can be said. On this view, the subject is not an object in the world but a limit of the world; what cannot be said may only be shown, though later interpreters disagree on whether this implies ineffable truths or a therapeutic exposure of nonsense (Wittgenstein, 1922/1961).

The later Wittgenstein abandons the hope for a single logical essence of language. Meaning is investigated through use, language-games, family resemblance, rule-following, and forms of life; philosophy becomes clarification rather than theory construction. The significance for consciousness is direct: instead of asking what hidden entity “consciousness” names, one asks how consciousness-related words function in ordinary and scientific practices (Wittgenstein, 1953/2009).

From Transcendental Subject to Phenomenological Language

The Tractatus places the experiencing subject outside the world, as "a limit of the world" (Wittgenstein, 1921, 5.632–5.641)—not an item to be described but a condition of description. Returning to Cambridge in 1929, he briefly pursued the converse ambition, entertaining a "phenomenological language" that would describe immediate experience directly and without the distortions of ordinary usage (Wittgenstein, 1929). Monk (1990) dates this to a few months; Ometiță (2016) argues it was never wholesale nor abandoned suddenly. Either way, it collapsed into the formula that phenomenology is grammar—analysis of how experiential concepts function rather than description of what appears. The shift marks his judgment that a purely descriptive science of appearances, of the kind the early phenomenologists sought, is not merely difficult but incoherent.

The Private Language Argument and the Beetle

Wittgenstein’s most famous intervention is the private-language discussion in Philosophical Investigations §§243–315. The target is a language whose words refer to what only the speaker can know: immediate private sensations. Wittgenstein’s concern is not a personal code, which could in principle be decoded, but a language necessarily intelligible only to its originator because its referents are in principle inaccessible to others. He argues that such a language cannot be established, because there would be no criterion distinguishing correct from incorrect use even for the supposed private linguist (Wittgenstein, 1953/2009; Kripke, 1982).

The mature position spans Philosophical Investigations §§243–315. A diarist inwardly ostends a recurring sensation and marks it "S." The difficulty is constitutive, not epistemic: with no independent standard, "whatever is going to seem right to me is right," which means "here we can't talk about 'right'" (PI §258). Criteria must be publicly checkable, so a private ostensive definition fails to establish meaning.

The argument is compressed in the beetle-in-the-box parable. If everyone had a box whose contents only they could inspect, each calling them a "beetle," the word could not function as a name: contents might differ, change, or be absent without disturbing use. "One can 'divide through' by the thing in the box; it cancels out, whatever it is" (PI §293). Whatever quality is posited as the referent of "pain" is thus idle with respect to meaning.

Phenomenal realists contest exactly here, and the objection has force. The passage establishes a thesis about reference, licensing no conclusion about existence: that a quality fails to fix word-meaning does not show there is no quality. Worse for the cancellation claim, Wittgenstein entertains at §272 that one section of humanity might have one sensation of red and another a different one—apparently requiring the very private difference the beetle passage is read as dissolving.

Not a Something, But Not a Nothing Either

Pressed by an interlocutor to concede that his account reduces sensation to behavior, Wittgenstein answers that the sensation "is not a something, but not a nothing either," the conclusion being only that a nothing would serve as well as a something about which nothing could be said. He rejects the behaviorist reading outright: if he speaks of a fiction, it is of a grammatical fiction (PI §307). What is fictional is the picture of an inner object behind the word, not the experience.

Reading this as covert eliminativism is a documented interpretive error. Tang (2014) argues against McDowell that §§293 and 304 involve no behaviorist overkill, Wittgenstein's target throughout being the Myth of the Given rather than sensation itself. A related move governs first-person knowledge: it cannot be said of me at all, "except perhaps as a joke," that I know I am in pain (PI §246). This is not skepticism about one's own states but a claim that the grammar of "know" requires the possibility of doubt, which here has none. Certainty about one's own pain is not an epistemic achievement but a feature of the concept.

Against The Inner Theater

Wittgenstein is hostile to the picture of the mind as a hidden theater containing private episodes whose meanings are fixed independently of expression and practice. But he is not a crude behaviorist. His point is that inner and outer are not related as two independent realms linked by uncertain inference. Human expressive life is the setting in which psychological concepts are intelligible.

This has consequences for phenomenal consciousness. The feel of pain, red, fear, music, or grief is not eliminated; rather, its philosophical treatment changes. The question “What is the private object directly known only to me?” is replaced by “What roles do sensation, expression, attention, memory, discrimination, report, training, and shared criteria play in this form of life?” McGinn’s account of Wittgensteinian grammar stresses that philosophical problems often arise from surface grammar misleading us about depth grammar: words look as if they must name inner objects, when their actual use is more varied and practice-bound.

Criteria, Expression, and Other Minds

Wittgenstein replaces the inference-from-behavior model of other minds with criteria: pain-behavior is not evidence from which an inner state is inferred but part of what constitutes the concept's application (PI §244). Hence the stance: my attitude towards him is an attitude towards a soul, and I am not of the opinion that he has one (PI II.iv). Hacker (1990) develops this into an anti-Cartesian reading, and Bennett and Hacker (2003) extend it to neuroscience via the "mereological fallacy": ascribing seeing or deciding to brains rather than whole animals is not false but senseless.

That extension is a live minority position, not a settled consequence. Dennett and Searle reject it, arguing that extending predicates to new domains is ordinary scientific practice — brains no more literally "see" than genes literally "encode" (Bennett et al., 2007). Whether Wittgenstein licenses Hacker's restriction is itself contested exegesis.

Aspect Perception and the Recalcitrant Datum

Between 1946 and 1949 Wittgenstein worked intensively on aspect perception (Schroeder, 2010), distinguishing two uses of "see": reporting what is there, and "I see a likeness in these two faces." Noticing a face's resemblance to another, one sees that it has not changed and yet sees it differently. He separates the continuous seeing of an aspect from its sudden dawning, and asks whether someone might be aspect-blind, as others are color-blind—a failure some commentators argue would entail a corresponding blindness to meaning.

Two claims make this consequential. First, what one perceives in the dawning of an aspect is "not a property of the object, but an internal relation between it and other objects" (PI II.xi)—the change is neither in the world nor, straightforwardly, an inner object. Second, considering the physiological account on which the eyes scan the figure along a particular path, he concludes that such explanation leaves the psychological concept out of reach, untouched. This claim about explanatory scope is made in his own voice, and prefigures the Bennett–Hacker position.

Baz (2020) characterizes the Wittgensteinian aspect as defying the standard dichotomies—neither subjective and metaphysically private nor simply objective, presenting a unity and sense arguably not yet conceptual, subject to the will yet taken to reveal the object genuinely. Whether aspect-dawning is perceptual or conceptual remains disputed.

Reception, Contestation, Assessment

Kripke (1982) reconstructs the argument as concerning rule-following and communal assertability, a skeptical paradox many Wittgensteinians reject as unfaithful; Sá Pereira (2016) contends its force depends on an unstated transparency premise. Incompatible descendants claim the same ancestor: Dennett invokes §293 for illusionism, while Hacker uses the same corpus to reject the hard problem yet insists subjectivity is already built into ordinary grammar.

Wittgenstein resists placement. He is neither eliminativist nor phenomenal realist, his aim being to dissolve the framework in which that dispute is formulated. His account addresses the hard problem by denying it is one—either identifying the deepest confusion in consciousness studies or evading its central datum. The aspect-perception writings complicate both verdicts: there he spent three years attending to a phenomenal difference he could neither reduce to behavior nor explain away as grammatical illusion, and about which he concluded that physiology has nothing to say.

Wittgenstein offers no neural mechanism, no computational model, and no solution to the hard problem understood as an explanatory bridge from physical process to phenomenal feel. His contribution is more deflationary and diagnostic: many puzzles about consciousness arise from grammatical pictures masquerading as discoveries. The private-language argument challenges the assumption that qualia are intrinsically private objects whose identities are fixed independently of public criteria, training, expression, and use.

For Landscape, Wittgenstein belongs among conceptual, linguistic, and challenge theories of consciousness. He does not explain why there is something it is like to be conscious. He clarifies why the very demand for such an explanation can be distorted when phenomenal consciousness is modeled as an occult object, inwardly named, epistemically sealed, and metaphysically prior to all human practices. Consciousness is not denied; its subsurface grammar is revealed.

References

Baz, A. (2020). Wittgenstein on Aspect Perception. Cambridge: Cambridge University Press.

Bennett, M. R., Dennett, D., Hacker, P. M. S., & Searle, J. (2007). Neuroscience and Philosophy: Brain, Mind, and Language. New York: Columbia University Press.

Bennett, M. R., & Hacker, P. M. S. (2003). Philosophical Foundations of Neuroscience. Oxford: Blackwell.

Hacker, P. M. S. (1990). Wittgenstein: Meaning and Mind (Volume 3 of An Analytical Commentary on the Philosophical Investigations). Oxford: Blackwell.

Kripke, S. A. (1982). Wittgenstein on Rules and Private Language. Cambridge, MA: Harvard University Press.

Monk, R. (1990). Ludwig Wittgenstein: The Duty of Genius. London: Jonathan Cape.

Mulhall, S. (2001). Seeing aspects. In H.-J. Glock (Ed.), Wittgenstein: A Critical Reader. Oxford: Blackwell.

Ometiță, M. (2016). Wittgenstein and the Problem of Phenomenology (Doctoral dissertation). University of East Anglia, Norwich.

Sá Pereira, R. (2016). What we can learn about phenomenal concepts from Wittgenstein's private language. Nordic Wittgenstein Review, 5(2), 33–56.

Schroeder, S. (2010). A tale of two problems: Wittgenstein's discussion of aspect perception. In J. Cottingham & P. M. S. Hacker (Eds.), Mind, Method, and Morality: Essays in Honour of Anthony Kenny (pp. 352–371). Oxford: Oxford University Press.

Tang, H. (2014). "It is not a something, but not a nothing either!" — McDowell on Wittgenstein. Synthese, 191(3), 557–567.

Wittgenstein, L. (1921/1922). Tractatus Logico-Philosophicus (C. K. Ogden, Trans.). London: Routledge & Kegan Paul.

Wittgenstein, L. (1929). Some remarks on logical form. Proceedings of the Aristotelian Society, Supplementary Volumes, 9, 162–171.

Wittgenstein, L. (1953/1958). Philosophical Investigations (G. E. M. Anscombe, Trans.; 2nd ed.). Oxford: Blackwell. Cited in text as PI: Part I by remark number (e.g., PI §580); Part II by section in roman numerals (e.g., PI II.iv, p. 178). In the 4th edition (P. M. S. Hacker & J. Schulte, Eds., 2009, Oxford: Wiley-Blackwell), Part II is retitled Philosophy of Psychology — A Fragment and its remarks are numbered continuously, so Part II references there take the form PPF §n.

Wittgenstein, L. (1977). Remarks on Colour (G. E. M. Anscombe, Ed.; L. L. McAlister & M. Schättle, Trans.). Oxford: Blackwell.