Work #1493 · Late period
Objective Knowledge
Popper's 1972 essay collection on epistemology without a knowing subject — World 3
Karl Popper
· 1972 (essays 1960-72)
· English
· Essay collection
Tradition: Critical rationalism / evolutionary epistemology / philosophy of mind
Popper's 1972 essays — evolutionary epistemology and the World 3 of objective knowledge
Published by Oxford / Clarendon in 1972, 'Objective Knowledge: An Evolutionary Approach' collects Popper's mature epistemological essays. The central theses are evolutionary epistemology (knowledge grows by trial and error, just as life evolves by variation and natural selection), the three-world ontology (World 1 — physical; World 2 — mental; World 3 — objective contents of thought: theories, problems, arguments), and the autonomy of World 3 (theories have logical consequences and problem-situations independent of the minds that thought them).
Author
Editions cited
- Objective Knowledge: An Evolutionary Approach (Clarendon Press, Oxford, 1972; revised 1979)
School Embodiments
Critical Realism
30%
Mature critical-rationalist epistemology.
"All knowledge grows by tentative theories and their criticism." (Objective Knowledge, ch. 1)
Defining statement of evolutionary epistemology.
"From amoeba to Einstein, the growth of knowledge is always the same." (Objective Knowledge, ch. 7)
World-3 ontology — objective contents of thought.
"World 3 — the world of objective contents of thought — is autonomous." (Objective Knowledge, ch. 3)
Realism
14%
Three-world realism — both World 1 and World 3 mind-independent.
"World 3 is real, autonomous, and changes World 1 through World 2." (Objective Knowledge, ch. 4)
Continued philosophy-of-science work — verisimilitude, propensity, etc.
"Verisimilitude — closeness to truth — is a coherent notion despite Tarski's reservations." (Objective Knowledge, ch. 2)
Naturalism
8%
Naturalistic background — evolutionary continuum.
"Knowledge is a natural product of natural processes." (Objective Knowledge, ch. 7)
Analytic-philosophical tradition.
Internal Tensions
Mature statement of evolutionary epistemology and the three-world ontology — Popper's most concentrated late philosophical work.
⧖
I. Time
1972 — late Popper.
Attributes
Extent: Infinite
Ontological Status: Substantival
Grain: Continuous
Freedom: NDet
Traversability: Linear
Direction: Uni-directional
Dimensionality: One
✦
II. Space
LSE / Oxford context.
Attributes
Extent: Infinite
Ontological Status: Substantival
Curvature: Curved
Dimensionality: Three
Locality: Local
◉
III. Matter
Essay collection on epistemology.
Attributes
Extent: Finite
Ontological Status: Substantival
Conservation: Conserved
Dimensionality: Three
Locality: Local
◎
IV. Observer
Late Popper synthesising critical-rationalism, evolution, World 3.
Attributes
Time Instance: Single
Space Instance: Single
Knowledge Extent: Mediate
Knowledge Retainment: Total
Physicality: Embodied
Agency: Active
Number: Plural
Metaphysical Agency: None
⚡
V. Energy
Mature-synthesising philosophical energies.
Attributes
Extent: Finite
Ontological Status: Substantival
Conservation: Conserved
Dispersibility: Irreversible
⧉
VI. Information
Single book of nine essays plus appendices.
Attributes
Ontological Status: Substantival
Cosmic Conservation: Conserved
Personal Conservation: Non-conserved
Granularity: Continuous
Personas that cite this work
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 Objective Knowledge resolves each dilemma
48 resolved positions across 4 dimensions · 9 unaligned.
Each dimension is sorted so minority positions come first. Mainstream positions are folded into an expandable list.
Time · 9 dilemmas, all mainstream
How much weight do future people deserve?
Future people are as real as you are — and their interests count for as much.
47%
Is regret rational?
The past is as real as the present; regret is a real attitude toward a real thing.
47%
Do we owe extinct species something we cannot give them?
Extinct species are as real as we are; they have standing.
47%
Is the universe running out of usable energy?
Time is unbounded but matter is finite; usable energy can fail without time failing.
47%
Are natural resources fundamentally finite, or only practically so?
Time goes on but matter is bounded; we are eventually constrained even with infinite time.
47%
Could we owe future generations more than is materially possible to provide?
Time is unbounded but matter is not; we can owe more across long time than the matter can provide.
47%
Are addicts responsible for their addiction?
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Do you really choose?
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Should we hold AI systems responsible for what they do?
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Matter · 7 dilemmas, all mainstream
Is the world created from nothing?
Yes — matter was created and is conserved as a real substance.
55%
Is the physical world fully real?
Yes — the physical world is fully real, mind-independent, persisting.
55%
Does matter have intrinsic moral standing?
Matter is morally considerable insofar as it is created or conserved good.
55%
What is money?
Money is a real institution with intrinsic features.
54%
What is a nation?
A nation is a real moral community with intrinsic character.
54%
What makes someone male or female?
Sex is a real biological kind with given content.
54%
Should we edit the human germline?
Human nature is a real biological kind given by reproductive biology or by creation; editing the germline transgresses what is given.
54%
Observer · 37 dilemmas, all mainstream
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%
When does a person begin?
A person exists from conception — when a new being comes into existence.
54%
What is marriage?
Marriage has a given form — it’s a kind of thing we recognize, not make.
54%
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%
What is our place in nature?
Active in a real nature — we cultivate, steward, transform.
48%
Should we colonize space?
Cultivating worlds beyond Earth is the next form of stewardship.
48%
Is genetic engineering of food stewardship or domination?
Genetic modification is cultivation by other means.
48%
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%
What makes someone the same person over time?
You are your body — continuity is bodily continuity.
36%
Is the late-stage dementia patient still the person their spouse married?
Same body, same person — even when the cognitive pattern has changed.
36%
If a teleporter copied and destroyed you, would you have survived?
Different body, different person — you died in the scanner.
36%
Do animals have moral standing comparable to humans?
Animal minds are real because biology is the substrate of mind.
32%
Could a fetal brain organoid in a petri dish be conscious?
Brain tissue can in principle do what brains do; the question is integration.
32%
Should we trust expert testimony when we can't verify it?
Trust expertise whose conclusions a competent mind can in principle reproduce.
32%
Is religious revelation a real source of knowledge?
Revelation is evaluable by reason — and not above it.
32%
Does an LLM 'know' the things it correctly produces?
An LLM can produce correct outputs but not reason to them; useful, not knowing.
32%
What happens to "you" when you die?
Death is genuinely the end.
30%
Could an AI have a mind that matters?
No — mind is what a biological brain does, and an LLM has no brain.
30%
Does history have a direction or meaning?
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How is knowledge of reality produced?
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Is salvation, liberation, or fulfillment individual or communal?
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Is truth universal, tradition-bound, situated, or constructed?
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What kind of religious-theological authority does the tradition recognize?
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Who is the moral primary — the individual, the community, the cosmos, the class, or the species?
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Information · 4 dilemmas, all mainstream
Is anything truly lost when someone forgets?
Information is lost when a mind forgets; matter and energy continue, but the pattern is gone.
51%
Does deleting your data online destroy something real?
Information is genuinely lost when the substrate that hosted it goes; deletion really destroys.
51%
Could the dead, in principle, be brought back?
The information dissipates with the substrate; restoration is in principle impossible.
51%
Is forgiveness ontologically possible?
The offense is locally constituted by its substrate; when the substrate dissolves, the offense genuinely passes away.
51%