Work #71

Outlines of Pyrrhonism

Pyrrōneioi hypotypōseis — Sextus Empiricus's systematic statement of late-antique sceptical philosophy

Sextus Empiricus · c. 160–210 AD · Hellenistic Greek · Philosophical-doxographical treatise in three books

Tradition: Late antique philosophy / Pyrrhonist scepticism

For every argument there is an equal counter-argument — and from equipollence comes suspension and tranquillity

The Outlines of Pyrrhonism is the most complete surviving statement of ancient Pyrrhonist scepticism — a tradition descending from Pyrrho of Elis (c. 360–270 BC) through Aenesidemus to Sextus Empiricus, a physician of the late second century AD. Across three books Sextus distinguishes Pyrrhonism from Academic scepticism, presents the famous ten "modes" of producing suspension of judgement (epochē) by displaying equipollent arguments on both sides of every philosophical question, and surveys the major dogmatic schools. The goal is not negative demonstration but tranquillity (ataraxia), which Sextus reports as a personal discovery rather than a doctrine. The Outlines was the central modern source for the revival of scepticism in the sixteenth century (Montaigne, Descartes's methodical doubt) and remains a major reference for contemporary epistemology.

Editions cited

  • Outlines of Pyrrhonism (R. G. Bury, Loeb Classical Library, 1933)
  • Outlines of Scepticism (Julia Annas & Jonathan Barnes, Cambridge, 2nd ed. 2000)
  • Sextus Empiricus: Selections (Sanford Etheridge, Hackett, 1985)

School Embodiments

Pyrrhonism · 65%
Empiricism · 10%
Relativism · 10%
Pragmatism · 5%
Naturalism · 5%
Postmodernism · 5%

The Outlines is the principal surviving text of ancient Pyrrhonism. Every modern engagement with the school passes through this work.

"Scepticism is the ability to oppose appearances to appearances and judgements to judgements in any way whatever, with the result that we suspend judgement... and then arrive at tranquillity." (Outlines I.4)

Sextus was a physician of the Empiric school of medicine, and the Outlines's reliance on observation and equipollent argument is one of the philosophical ancestors of British empiricism.

"We oppose what appears to what appears, what is thought to what is thought, what appears to what is thought." (Outlines I.31)

The ten modes are an extended demonstration of how appearances vary with observer, condition, culture, and circumstance — the structural ancestor of modern philosophical relativism.

"Honey appears sweet to me but bitter to people with jaundice." (Outlines I.101)

The Pyrrhonian practice of suspending judgement while following appearances and customs is read by some pragmatists (Robert Talisse, Susan Haack) as a precursor to fallibilist pragmatic method.

"We assent only to what comes forward through appearance." (Outlines I.13)

Modern philosophical naturalism (Quine, Strawson on connection naturalism) shares the Pyrrhonian instinct to deflate metaphysical questions by showing that they cannot be settled.

"Equipollence is opposition of arguments in respect of credibility and lack of credibility." (Outlines I.10)

Late-twentieth-century philosophical pluralism (Lyotard, Rorty) has drawn on Pyrrhonism's destabilising of metaphysical positions, often reading Sextus alongside Wittgenstein.

"We do not deny that the things that move us do move us; what we doubt is whether they are as they appear." (Outlines I.19)

Internal Tensions

The classic objection to Pyrrhonism is self-refutation: the claim that we should suspend judgement is itself a judgement. Sextus addresses this (I.14) — Pyrrhonian assertions are themselves to be taken as expressions of how things appear, not as dogmatic claims — but critics since Plato's Theaetetus have argued the response is either incoherent or empty. The relation between Pyrrhonism and Academic scepticism is the other major point of dispute.

I. Time

Time, like every other philosophical category, is subjected to equipollent argument: for every position on time's nature, a counter-position is shown to be equally credible. Sextus suspends judgement; the sceptic follows custom in temporal matters.

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

II. Space

Same treatment: space's nature is subjected to opposed arguments, with no resolution claimed. The sceptic lives in lived space without committing to a doctrine of it.

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

III. Matter

The ten modes show that the same body appears differently under different conditions. Matter is whatever appears to act on us; what its nature is in itself is suspended.

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

IV. Observer

The Pyrrhonian observer is embodied, plural, passive in the precise sense of not asserting beyond appearance. Knowledge is immediate (appearances are given) but does not extend beyond them. Moral authority is experience and custom. Metaphysical agency is None — Sextus is neither theist nor atheist; both positions are equipollent.

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

V. Energy

Conventional within the framework; not theorised philosophically.

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

VI. Information

Information is relational — what appears, to whom, under what conditions. Personal information is not philosophically privileged; the question of personal persistence is one more equipollent dispute to be suspended.

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

Films that reference this work

12 Angry Men (1957)

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 Outlines of Pyrrhonism resolves each dilemma

51 resolved positions across 4 dimensions, including 22 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 · 5 distinctive

Persistence, the future, and the direction of becoming.

Distinctive · only 6% of schools agree (12/202)
Do you really choose?
If the brain is a physical system and physical systems are governed by laws, then every choice is also a chain of causes — which raises the question of what was really left to choose.
Even if the universe is undetermined, you are not the chooser.
On this view, the indeterminacy of the universe — whether from quantum mechanics, sheer contingency, or something else — does nothing to recover meaningful choice. A coin-flipping brain is not a deliberating brain; randomness in the underlying physics doesn't translate into power for the observer. …
Roads not taken The future is open and you are a genuine origin of it. (69%) · Choice is structural illusion — every event is fixed by the prior state. (10%) · Choice is real within a determined order — agency and determinism aren’t opposites. (9%)
Distinctive · only 6% of schools agree (12/202)
Are addicts responsible for their addiction?
Addiction looks from one angle like the textbook case of agency failing — a person doing what they don't, in any meaningful sense, want to do. From another angle it looks like agency at work in hard conditions. Which it is depends on what agency is.
Even if the universe is undetermined, the addict isn't the chooser.
On this view, the indeterminacy of the universe does nothing to convert an addict's brain into a responsible chooser. Randomness is not freedom. The addict is being acted on by neurochemistry, by environment, by craving; the appearance of agency is downstream of these. Compassion is …
Roads not taken The addict could have chosen otherwise — that's why recovery is real. (69%) · The addict's behaviour is the outcome of causes; 'responsibility' is a useful fiction, not a metaphysical fact. (10%) · The addict is genuinely responsible within a determined order. (9%)
Distinctive · only 6% of schools agree (12/202)
Should we hold AI systems responsible for what they do?
When an autonomous AI takes an action that harms someone, the question of who or what is responsible — the developer, the operator, the model itself — turns on whether the model is the kind of thing that can be a responsible agent.
Neither AIs nor anyone else are the locus of free agency; the question is the wrong one.
On this view, the same reasons that undermine ordinary claims of human agency apply with equal force to AI. The brain is a coin-flipping organ; the model is a function on inputs. Neither is the kind of thing that can be the source of action …
Roads not taken An AI without a free will is not the kind of thing that can be responsible. (69%) · An AI's behaviour is fully determined by training and input; 'responsibility' applies if at all to its makers. (10%) · The AI can be a genuine agent within determined conditions — and therefore genuinely responsible. (9%)
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%)
4 mainstream positions

Matter · 7 dilemmas · 5 distinctive

What stuff is — fundamental, relational, or appearance.

Distinctive · only 8% of schools agree (16/202)
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” names a family of practices — the definition question is nominal.
On this view, gold, fiat currency, cryptocurrency, frequent-flyer miles, prison cigarettes, and the IOUs scribbled on a bar napkin are not all the same kind of thing. They share family resemblances but no common essence. Trying to define money univocally is asking a question that …
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 is the ledger of obligations among real people. (15%)
Distinctive · only 8% of schools agree (16/202)
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.
“Nation” names a family of practices imaginatively held together.
On this view, what we call nations are large-scale imagined communities — necessarily imagined because their members will never meet most other members, necessarily imagined as bounded and sovereign. The imagination is real and consequential; the underlying kind is not.
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%) · A nation is the web of kinship, ancestry, and shared land that hosts a people. (15%)
Distinctive · only 8% of schools agree (16/202)
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.
“Male” and “female” are family-resemblance terms — no single essence.
On this view, the everyday categories of male and female pick out overlapping clusters of features — anatomy, physiology, social role, self-understanding, behaviour — that do not reduce to a single essence. The categories are useful but lossy; the demand for a single definition is …
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%) · Sex and gender are constituted by relations of recognition. (15%)
Distinctive · only 8% of schools agree (16/202)
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.
'Human nature' is a cluster term without a single essence; the editing question is empirical, not metaphysical.
On this view, 'human nature' picks out an overlapping cluster of features — anatomical, developmental, cognitive, social — without a single essence the cluster reduces to. The question of whether germline editing is permissible doesn't turn on transgressing an essence (there isn't one) but on …
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%) · Personhood is constituted by relations of descent and kinship; germline editing reshapes the relational fabric. (15%)
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 5% of schools agree (10/202)
What happens to "you" when you die?
Whether anything of you persists — and in what sense — depends on what you take a person to be.
The question presupposes a "you" that never was.
Selfhood was always a useful construction stitched together from experiences, narratives, and habits. "What happens to you?" mis-poses the issue: there was no unified thing to either survive or perish.
Roads not taken A soul continues into another mode of being. (37%) · Death is genuinely the end. (30%) · You were always a pattern. The pattern propagates. (18%)
Distinctive · only 8% of schools agree (16/202)
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?
The question presupposes a fact of the matter that isn’t there.
There is no point at which an unchanging core "comes into being"; there is a stream of conditioned arising that we choose to mark, or not mark, at various places. The political and moral question of how to treat developing humans is real; the metaphysical …
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%) · Personhood is conferred by being-in-relation. (15%)
Distinctive · only 8% of schools agree (16/202)
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” names a family of practices — the definition question is nominal.
On these views, “marriage” is a name applied to many overlapping but distinct social configurations across cultures and across history. To ask “what is marriage, really?” is to ask a question that doesn’t have a single answer — because there isn’t a single thing whose …
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 is constituted by the web of relations it creates. (15%)
Distinctive · only 12% of schools agree (25/202)
What is our place in nature?
Whether humans are masters of nature, members of nature, or makers of nature is not a question climate science can settle. It depends on what nature is, what we are, and what kind of relationship is possible between us.
Subject to a real natural order we did not make.
On these views, nature is a real, ordered, mind-independent reality that we are inside of but did not construct. Our fundamental posture toward it is one of observation, discovery, and humility before laws that are not ours to make. Stewardship and conservation are real obligations, …
Roads not taken Active in a real nature — we cultivate, steward, transform. (48%) · Nature is partly what we make of it — concepts, practices, and minds shape the world. (15%) · Embedded in a web — partners with the more-than-human world. (15%)
Distinctive · only 12% of schools agree (25/202)
Should we colonize space?
The drive to extend human presence beyond Earth is sometimes framed as the next chapter of stewardship, sometimes as hubris, sometimes as escape from problems we ought to solve here. Which it is depends on what we take our relationship to nature to be.
Nature includes its limits; colonisation is bounded by what the cosmos allows.
On these views, humans operate within a given natural order whose laws and limits set the terms. Space colonisation is fine to the extent that it is actually possible — radiation, gravity wells, biological tolerances — and folly to the extent that it requires denying …
Roads not taken Cultivating worlds beyond Earth is the next form of stewardship. (48%) · The 'space frontier' is partly what we make of it. (15%) · Colonisation continues the work that ended the wisdom of seven-generation thinking. (15%)
26 mainstream positions
Is genetic engineering of food stewardship or domination? Biology is what it is; we modify it within real biological constraints. 12% What makes someone the same person over time? There was never a fixed self to either preserve or lose. 14% Is the late-stage dementia patient still the person their spouse married? There was no fixed person to lose; care is owed to whoever is here. 14% If a teleporter copied and destroyed you, would you have survived? There was no fixed you to either survive or fail to; the question is malformed. 14% 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% 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% Could an AI have a mind that matters? The question presupposes a kind of mind that never existed in the first place. 7%
6 unaligned
Information · 4 dilemmas, all mainstream
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