Work #114 · Latest period

On Certainty

Über Gewissheit — Wittgenstein's last notebooks, on the foundations of empirical knowledge

Ludwig Wittgenstein · Written 1949–51 (in Wittgenstein's final eighteen months); published posthumously 1969 · German · Aphoristic notebook entries — 676 numbered remarks

Tradition: Analytic philosophy / late-late Wittgenstein

The foundations of empirical knowledge lie in our forms of life — and our framework certainties cannot themselves be doubted within the system that depends on them

On Certainty is Wittgenstein's last sustained work, composed in the eighteen months between his cancer diagnosis and his death in April 1951. The 676 numbered remarks engage Moore's "Proof of an External World" and "A Defence of Common Sense" — the famous demonstrations that begin "Here is a hand." Wittgenstein argues that Moore's certainties (that there is an external world, that I have hands, that the earth has existed for many years) are not themselves empirical knowledge but the framework against which empirical questions are raised — "hinges" that must stay put if questioning is to occur at all. The work is the third Wittgenstein author-stage (alongside the Tractatus and the Investigations) and has shaped contemporary epistemology decisively (especially Wright's and Williams's anti-sceptical work).

Author

Editions cited

  • On Certainty (Denis Paul & G. E. M. Anscombe, Blackwell/Harper, 1969)

School Embodiments

Pragmatism · 25%
Analytic Metaphysics / Logical Atomism · 10%
Pyrrhonism · 15%
Constructivism · 15%
Phenomenology · 10%
Relationalism · 10%
Postmodernism · 10%
Reformed / Calvinist Theology · 5%
Analytic Philosophy · 8%

On Certainty's analysis of framework certainties as practical hinges of inquiry rather than theoretical propositions has been read by neo-pragmatists (Rorty, Brandom) as a pragmatist text in disguise.

"You must bear in mind that the language-game is so to say something unpredictable. I mean: it is not based on grounds. It is not reasonable (or unreasonable). It is there — like our life." (On Certainty §559)

On Certainty remains within the analytic tradition's engagement with epistemological foundations, even as it transforms what "foundation" means.

"Knowledge is in the end based on acknowledgement." (On Certainty §378)

Wittgenstein's response to scepticism — that the sceptic's doubt cannot be coherently formulated within the language-game it presupposes — is a sophisticated modern resolution of the Pyrrhonian challenge.

"My life consists in my being content to accept many things." (On Certainty §344)

The doctrine that our framework certainties are constituted by our forms of life rather than discovered is a sophisticated constructivist epistemology.

"If something happened (such as someone's telling me something) calculated to make me doubtful of my own name, there would certainly also be something that made the grounds of these doubts themselves seem doubtful." (On Certainty §516)

Late Wittgenstein's attention to the lived practical certainties of everyday life resembles phenomenological analyses of the life-world.

"My life shews that I know or am certain that there is a chair over there." (On Certainty §7)

On Certainty's analysis of certainty as embedded in language-games and forms of life is a relational epistemology rather than a foundationalist one.

"The propositions describing this world-picture might be part of a kind of mythology." (On Certainty §95)

Postmodernist epistemology has read On Certainty alongside Rorty as foundational for anti-foundationalist accounts of knowledge.

"It is so difficult to find the beginning. Or, better: it is difficult to begin at the beginning. And not try to go further back." (On Certainty §471)

Reformed epistemology (Plantinga, Wolterstorff) has engaged On Certainty as support for the doctrine that basic beliefs (including religious belief) need not be evidentially grounded to be rational.

"At the foundation of well-founded belief lies belief that is not founded." (On Certainty §253)

Analytic-philosophical tradition.

Internal Tensions

On Certainty represents a third Wittgenstein author-stage — distinct from both Tractatus and Investigations. The three-stage trajectory is now classifiable on this site as a compare-triple. The work's relation to the Investigations has been disputed: continuation, refinement, or substantive new direction.

I. Time

Hinge certainties stand fast across temporal questioning. Time is real, relational, embedded in our practices.

Attributes
Extent: Infinite Ontological Status: Relational Grain: Continuous Freedom: Non-Deterministic Traversability: Linear Direction: Uni-directional Dimensionality: One

II. Space

Standard everyday space; not theorised philosophically.

Attributes
Extent: Infinite Ontological Status: Relational Curvature: Flat Dimensionality: Three Locality: Local

III. Matter

Real material objects are part of our framework certainties — "Here is a hand."

Attributes
Extent: Infinite Ontological Status: Relational Conservation: Conserved Dimensionality: Three Locality: Local

IV. Observer

The On-Certainty observer is the embodied human whose certainties are embedded in forms of life — plural, active in practice. No metaphysical agency.

Attributes
Time Instance: Single Space Instance: Single Knowledge Extent: Immediate Knowledge Retainment: Immediate Physicality: Embodied Agency: Active Number: Plural Metaphysical Agency: None

V. Energy

Not engaged.

Attributes
Extent: Infinite Ontological Status: Substantival Conservation: Conserved Dispersibility: Irreversible

VI. Information

Framework certainties are the relational hinges of inquiry. No personal-conservation commitment.

Attributes
Ontological Status: Relational Cosmic Conservation: Non-conserved Personal Conservation: Non-conserved Granularity: Continuous

Personas that cite this work

Ludwig Wittgenstein

Personas with the nearest attribute fingerprint

Historical figures whose own classification on the same six-dimensional grid lands closest to this work's. Computed by attribute-agreement on coordinates both address.

Computed school proximity

The work's attribute fingerprint scored against all schools using the same quiz scorer. Useful as a sanity check on the hand-curated embodiments above.

How On Certainty resolves each dilemma

51 resolved positions across 4 dimensions, including 19 distinctive where the majority of schools go the other way · 6 unaligned.

Each dimension is sorted so minority positions come first. Mainstream positions are folded into an expandable list.

Time · 9 dilemmas · 3 distinctive

Persistence, the future, and the direction of becoming.

Distinctive · only 15% of schools agree (31/202)
Is the universe running out of usable energy?
The heat death of the universe — entropy maxed out, no further work possible — is among the more sobering implications of mainstream physics. Whether it is structurally inescapable depends on what kind of finitude the cosmos has.
Both time and matter are unbounded; 'running out' is misframed.
On this view, the cosmos has neither a temporal horizon nor a material exhaustion point. The framing of running out presupposes bounds that the cosmos doesn't have. Energy gradients perpetuate; new configurations emerge; the categories that make heat-death scary don't apply at the cosmic scale.
Roads not taken Time is unbounded but matter is finite; usable energy can fail without time failing. (47%) · Time both has and lacks bounds depending on the level you ask at; finitude is conventional. (26%) · The cosmos has bounds; heat death is a real horizon. (12%)
Distinctive · only 15% of schools agree (31/202)
Are natural resources fundamentally finite, or only practically so?
Whether we can grow our way out of resource constraints — or whether the cosmos sets limits the economy ultimately must obey — depends on what kind of finitude matter has.
Resources are practically inexhaustible on cosmic scales; terrestrial limits are engineering.
On this view, matter and time are both unbounded at the largest scales. Terrestrial resource limits are real engineering and political constraints but not metaphysical ones; the cosmos can in principle support whatever expansion intelligence is capable of.
Roads not taken Time goes on but matter is bounded; we are eventually constrained even with infinite time. (47%) · The finitude question is level-dependent; resource ethics happens at the level that constrains us. (26%) · Resources are finite in the strict sense; living well requires accepting the limit. (12%)
Distinctive · only 15% of schools agree (31/202)
Could we owe future generations more than is materially possible to provide?
If we owe future people a habitable planet and the material means to flourish, and the cosmos is bounded in ways that make those obligations impossible at some scale, the obligation and the possibility come apart. Where they come apart turns on what kind of finitude we live in.
Both time and matter are unbounded; we cannot in principle owe more than is possible.
On this view, the cosmos has the resources to support whatever flourishing future generations are capable of, given sufficient time and intelligence. The impossibility concern is misplaced; the real questions are about trajectories and choices, not about resource ceilings.
Roads not taken Time is unbounded but matter is not; we can owe more across long time than the matter can provide. (47%) · The owing-and-possibility question is level-dependent; we owe what is appropriate at the level we act on. (26%) · The cosmos is bounded; our obligations to future generations are bounded with it. (12%)
6 mainstream positions

Matter · 7 dilemmas · 5 distinctive

What stuff is — fundamental, relational, or appearance.

Distinctive · only 15% of schools agree (30/202)
What is money?
The question of what money is — a measured store of real value, an agreed-on practice, a relational ledger of debts, or just a name we apply to many different things — sits behind every argument about inflation, cryptocurrency, debt, and the state.
Money is the ledger of obligations among real people.
On relational views, money is not a substance you have; it is a record of who owes whom what. Debts and credits are real because the relations they track are real — to kin, to community, to ancestors, to land. Money is the form this …
Roads not taken Money is a real institution with intrinsic features. (54%) · Money is a social practice — its content is what we make it. (16%) · “Money” names a family of practices — the definition question is nominal. (8%)
Distinctive · only 15% of schools agree (30/202)
What is a nation?
Whether a nation is a real moral community with intrinsic character, a constructed legal-political artifact, a web of kinship and shared history, an imagined community, or a conventional partition of a deeper unity — these are real ontological positions with sharply different political downstream.
A nation is the web of kinship, ancestry, and shared land that hosts a people.
On relational views, the nation is the relational fabric — extended kinship, ancestral inheritance, shared ecology, communal practice — that hosts a people across generations. Borders matter less than belonging; lineage and land carry the weight that political structures only ratify.
Roads not taken A nation is a real moral community with intrinsic character. (54%) · A nation is a constructed polity — a project, not a discovery. (16%) · “Nation” names a family of practices imaginatively held together. (8%)
Distinctive · only 15% of schools agree (30/202)
What makes someone male or female?
Whether sex is a real biological kind, a constructed social category, a relational identity, a label applied to varied phenomena, or a conventional distinction within a deeper unity is the ontological question the contemporary dispute about gender is mostly about.
Sex and gender are constituted by relations of recognition.
On relational views, identity is not a property a person has alone; it is constituted by the web of recognition the person sits in. What makes someone a man or a woman in any thick sense is the relations of kinship, community, ritual, and recognition …
Roads not taken Sex is a real biological kind with given content. (54%) · Gender is constructed; what counts as male or female reflects practice. (16%) · “Male” and “female” are family-resemblance terms — no single essence. (8%)
Distinctive · only 15% of schools agree (30/202)
Should we edit the human germline?
Whether human nature is a given biological kind, a constructed category, a relational achievement, a family-resemblance cluster, or a conventional distinction within deeper unity is the ontological question the policy debate over heritable gene editing is mostly about.
Personhood is constituted by relations of descent and kinship; germline editing reshapes the relational fabric.
On relational views, what makes someone a person is the web of kinship, ancestry, and community they sit in — not a property the body carries alone. Heritable editing intervenes in exactly this fabric: the lineage that ancestors handed on, the descent that descendants will …
Roads not taken Human nature is a real biological kind given by reproductive biology or by creation; editing the germline transgresses what is given. (54%) · The categories we count as 'human' are emergent from practice; germline editing is a practice-revision like any other. (16%) · 'Human nature' is a cluster term without a single essence; the editing question is empirical, not metaphysical. (8%)
Distinctive · only 16% of schools agree (33/202)
Is the world created from nothing?
Creatio ex nihilo is one of the most distinctive Western-theological claims. Whether matter was created from nothing, eternally exists, or is sustained moment-by-moment turns on what kind of thing matter is.
Matter is constituted by relations; the question of 'from what?' presupposes substance.
On this view, matter is not a stuff but a patterning — the standing relations among things, ancestors, processes, and places. The creatio-ex-nihilo question doesn't quite arise, because the ontology has no slot for a free-standing substance to be created or eternal. What persists is …
Roads not taken Yes — matter was created and is conserved as a real substance. (55%) · Matter is real but emerges from something deeper — neither bedrock nor created-from-nothing. (23%) · Matter arises and dissolves through cosmic rounds; neither created from nothing nor eternal. (4%)
2 mainstream positions

Observer · 37 dilemmas · 5 distinctive

Mind, agency, and the knower's relation to the known.

Distinctive · only 14% of schools agree (29/202)
What makes someone the same person over time?
When dementia hollows out memory, when a coma resolves with no recall, when you imagine being uploaded — the question of whether the surviving person is still you turns on what kind of thing the 'you' was to begin with.
There was never a fixed self to either preserve or lose.
On these views, what we call a self was always a stream of experience, a constructed narrative, a process — never a thing whose continuity could be the question. Dementia, upload, transformation, death are stages in a process, not events that either preserve or destroy …
Roads not taken You are your body — continuity is bodily continuity. (36%) · You are a soul — what persists through change is the non-bodily aspect. (29%) · You span moments — identity is a pattern that need not be located at a single now. (9%)
Distinctive · only 14% of schools agree (29/202)
Is the late-stage dementia patient still the person their spouse married?
Loss of memory, of recognition, of the cognitive patterns that made the person — does this end the person, or merely the person you knew? The answer turns on what makes someone who they are.
There was no fixed person to lose; care is owed to whoever is here.
On these views, the person their spouse married was never a fixed thing whose continuation could be tracked across time. There has always been a stream of experiences, a developing character, a construction. Dementia is one of the more visible changes in the process; the …
Roads not taken Same body, same person — even when the cognitive pattern has changed. (36%) · The soul persists; the cognitive change is the body's, not the person's. (29%) · The person is the pattern across moments — diminished pattern, diminished person. (9%)
Distinctive · only 14% of schools agree (29/202)
If a teleporter copied and destroyed you, would you have survived?
The Star Trek transporter problem: a machine scans your body atom by atom, transmits the pattern, builds an exact duplicate at the destination, and dismantles the original. Whether you arrive at the destination or die in the scanner is the question; the answer depends on what you are.
There was no fixed you to either survive or fail to; the question is malformed.
On these views, the question presupposes a fixed self whose continuity is the issue. There isn't one. The teleporter case feels more troubling than ordinary sleep, dementia, or growth, but the framework is the same: a stream of experience stops at the scanner, a new …
Roads not taken Different body, different person — you died in the scanner. (36%) · The soul accompanies the person; engineering can't transfer it. (29%) · You are the pattern; the pattern survives the substrate change. You arrive. (9%)
Distinctive · only 15% of schools agree (30/202)
When does a person begin?
The political question of abortion sits atop an older ontological one: at what point does there exist a someone — a being with moral standing — rather than merely the materials from which one will form?
Personhood is conferred by being-in-relation.
On relational views, person was never the name of a thing that exists on its own — it is the name of a node in a web of recognition, obligation, kinship, and ecology. The question of when a being becomes a person is the question …
Roads not taken A person exists from conception — when a new being comes into existence. (54%) · A person comes into being gradually, as the capacities of a mind develop. (16%) · The question presupposes a fact of the matter that isn’t there. (8%)
Distinctive · only 15% of schools agree (30/202)
What is marriage?
Behind every disagreement about how marriage should be defined is a prior disagreement about what kind of thing it is — a given order to be recognized, a practice to be negotiated, or a web of relations to be woven.
Marriage is constituted by the web of relations it creates.
On relational views, marriage is not a thing in itself but a node in a web — a configuration of obligations to children, extended kin, ancestors, ecology, and community. Its definition is what the network of relations is, and any attempt to specify it apart …
Roads not taken Marriage has a given form — it’s a kind of thing we recognize, not make. (54%) · Marriage is a practice we shape — its content is what we make it. (16%) · “Marriage” names a family of practices — the definition question is nominal. (8%)
26 mainstream positions
What is our place in nature? Embedded in a web — partners with the more-than-human world. 15% Should we colonize space? Colonisation continues the work that ended the wisdom of seven-generation thinking. 15% Is genetic engineering of food stewardship or domination? Editing the genome cuts into the relational fabric; we should be very slow. 15% What happens to "you" when you die? You were always a pattern. The pattern propagates. 18% Could causation work backwards? Causation runs one way — the arrow of time is real and structural. 68% Is the asymmetry between memory and anticipation a real feature of time, or just of us? The asymmetry is real because time itself has a real direction. 68% Is the arrow of time a real feature of the cosmos, or only of how we describe it? The arrow is real and structural; the asymmetry isn't an artifact of description. 68% Is environmental damage ever truly permanent? Damage is real and permanent on the relevant timescales. There is no recovery; there is only limitation. 66% Can a civilization recover from collapse? Civilizational complexity is hard to build and easy to lose; recovery is at best partial. 66% Does the second law of thermodynamics mean something morally? Entropy is what time is. The moral weight, if any, is the weight of working against the current. 66% Does environmental harm in another country bind me morally? Moral obligation tracks the relations one is in; distance does matter, structurally. 50% Can prayer for someone far away affect them? Prayer changes the pray-er, not the prayed-for. 49% Are coincidences ever more than coincidence? Coincidence is exactly what the math says it is. The pattern is in the noticer. 49% Is divine omniscience compatible with human freedom? The observer is in time; foreknowledge across times raises real freedom problems. 46% Does meditation reveal something genuinely timeless? Meditators are bounded observers reporting unusual brain states; the 'timeless' is metaphorical. 46% Does prayer change God's mind? If there is an addressee at all, it is in time; prayer is communication, and may genuinely change what comes next. 46% Are the dead morally present to the living? Observers are bounded by their own moment, and no further agency makes the dead present. 44% Is reality fundamentally digital? No — continuous fields, classical limits, analog deep structure. 37% Are there indivisible units of experience? No — continuous Jamesian stream, phenomenological lived time. 37% Is memory stored or reconstructed? Reconstructed — continuous re-narrating, no fixed engrams. 37% Should we trust expert testimony when we can't verify it? Trust expertise only insofar as it coheres with first-person experience. 17% Is religious revelation a real source of knowledge? What gets called 'revelation' is real direct experience — not a text. 17% Does an LLM 'know' the things it correctly produces? An LLM has no first-person experience, so no knowing in the relevant sense. 17% Could an AI have a mind that matters? An AI’s standing is constituted by the relations it enters. 15% Do animals have moral standing comparable to humans? Talk of 'standing' presupposes fixed selves that animals (and we) don't have. 10% Could a fetal brain organoid in a petri dish be conscious? Asking whether the organoid is 'really' conscious presupposes a category we don't have. 10%
6 unaligned
Information · 4 dilemmas, all mainstream
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