The test
A growing map of ways to know.
See how you know what you know. 31 questions place you on a map built from 51 axes, and shows you the mind you've been using. Answer 20 more if you want the match sharpened.
Four answers: Yes, No, Depends (it changes with the context), Unsure. Tap one per question and move on. On a desktop, keys 1–4 answer and ↓ moves to the next question. The quiz opens with the 31 questions that do the most to place you; the rest of the 51-axis map is one button away when you want a sharper match.
Your result card
The map
Every dot answered the same questions you are answering.
Each system sits near the ones that answer like it. It is a 2D simplification of a larger space, so read shared answers, not raw distance. Finish the test and your dot lands here.
What is the Pit of Despair?
The Pit of Despair: a constructed position that answers “No” to nearly every question, including “anything can be known.” It is a limit case we built to test the map, not a place a real mind drifts to. In the map's geometry it is a corner, not a whirlpool: simulated systems drift away from it under pressure, not toward it. Load-bearing questions, the ones the map marks as black holes, are explained with the bars below.
How to read it
- A dot is one belief system's full answer sheet.
- Neighbors on the map answered most questions the same way.
- Stars and diamonds are named thinkers and textbook positions; circles are constructed systems.
- The amber ring is you, once you finish the test.
Method appendix: the same map as plain PCA
The well and the Pit
Same dots, re-plotted: how deep each system sits next to the Pit of Despair.
This figure uses the coordinates from the map above, so a cluster keeps its neighbors: it asks where each system sits next to the Pit of Despair.
The Well and the Pit of Despair
Is the Pit of Despair a whirlpool that drags systems in, or just a corner of the map? Height here is distance from it: the lower a dot sits, the fewer of its answers say no to everything. A dot at the bottom agrees with almost nothing, including the claim that anything can be known. A dot at the top endorses nearly every load-bearing answer at once. Most real positions sit in the middle, and that is the ordinary result, not a warning sign.
The questions
Plain language, with the room's answers.
Each card gives the question, an everyday example of what yes and no look like, how the 137 belief systems answered, and the strongest case for each side. Most questions ask what is the case in the world (science, math, method). A few, tagged value, ask what is right, beautiful, sacred, or worth wanting.
Value questions. A few cards are tagged value: they ask what is right, beautiful, sacred, or worth wanting, not what happens to be the case. They are shown in place among the fact questions, but they are a different family. Answering a physics fact with confidence and a moral claim with care is not a contradiction, and the map does not treat it as one.
Part 1The Object8 questions
How each community answered9
The Long Table100% yesyes: Aristotle, Dario Amodei +16
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The mystics and the faithful94% yesyes: Carl Jung, Confucius +14
The Four Towers90% yesyes: Augustine, Descartes +7
The Clear Signal90% yesyes: The Absurdist, The Garden-Variety Skeptic +7
The Mirror Cabinet71% yesyes: Naive Realism, The Conspiracist +8 · no: The Consensus Realist +3
Radical Doubt19% yesno: Michel Foucault, Robert Anton Wilson +11 · yes: Nietzsche +2
How each community answered9
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Ceiling91% yesyes: Charles Peirce, The Khipu Keeper +18 · no: The Survival Pragmatist +1
The Four Towers90% yesyes: Augustine, Descartes +7
The Long Table83% yesyes: Aristotle, Dario Amodei +13 · no: David Graeber +2
The mystics and the faithful82% yesyes: Carl Jung, Confucius +12 · no: Jordan Peterson +2
The Clear Signal80% yesyes: The Absurdist, The Garden-Variety Skeptic +6 · no: The Instrumental Relativist +1
The Mirror Cabinet79% yesyes: Naive Realism, The Conspiracist +9 · no: The Consensus Realist +2
Radical Doubt12% yesno: Michel Foucault, Nietzsche +12 · yes: Paul Feyerabend +1
How each community answered9
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The Four Towers90% yesyes: Augustine, Descartes +7
The Mirror Cabinet79% yesyes: Naive Realism, The Conspiracist +9 · no: The Consensus Realist +2
The mystics and the faithful75% yesyes: Confucius, Iain McGilchrist +10 · no: Carl Jung +3
The Long Table72% yesyes: Aristotle, Dario Amodei +11 · no: David Graeber +4
The Clear Signal70% yesyes: The Garden-Variety Skeptic, The Institutional Trustee +5 · no: The Absurdist +2
Radical Doubt0% yesno: Michel Foucault, Nietzsche +14
How each community answered9
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: The Khipu Keeper, The Survival Pragmatist +19
The mystics and the faithful79% yesyes: Carl Jung, Iain McGilchrist +13 · no: Confucius +3
The Long Table59% yesyes: Aristotle, David Graeber +8 · no: Dario Amodei +6
The Engine Room38% yesno: Kant, Karl Popper +6 · yes: Ayn Rand +4
The Four Towers30% yesno: Augustine, Descartes +5 · yes: Thomas Aquinas +2
The suspicion booth15% yesno: Brett Weinstein, David Deutsch +9 · yes: Eric Weinstein +1
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
How each community answered9
Radical Doubt100% yesyes: Michel Foucault, Nietzsche +14
The suspicion booth54% yesyes: The Contrarian, The Fable +5 · no: Brett Weinstein +5
The Engine Room38% yesno: Ayn Rand, Epicurus +6 · yes: David Hume +4
The mystics and the faithful35% yesno: Confucius, Iain McGilchrist +9 · yes: Carl Jung +5
The Long Table35% yesno: Aristotle, Dario Amodei +9 · yes: David Graeber +5
The Four Towers30% yesno: Augustine, Leibniz +5 · yes: Descartes +2
The Mirror Cabinet29% yesno: Naive Realism, The Conspiracist +8 · yes: The Consensus Realist +3
The Ceiling0% yesno: Charles Peirce, The Khipu Keeper +20
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Four Towers100% yesyes: Augustine, Descartes +7
The mystics and the faithful85% yesyes: Carl Jung, Iain McGilchrist +9 · no: The Dzogchen Practitioner +1
The Engine Room73% yesyes: Ayn Rand, Karl Popper +6 · no: David Hume +2
The Long Table62% yesyes: Aristotle, Dario Amodei +8 · no: David Graeber +5
The Clear Signal60% yesyes: The Garden-Variety Skeptic, The Institutional Trustee +4 · no: The Absurdist +3
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
How each community answered9
The Four Towers100% yesyes: Augustine, Descartes +8
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The Mirror Cabinet93% yesyes: Naive Realism, The Consensus Realist +11
The Clear Signal90% yesyes: The Absurdist, The Garden-Variety Skeptic +7
The mystics and the faithful89% yesyes: Carl Jung, Confucius +14 · no: The Neo-Nondual Teacher +1
The suspicion booth88% yesyes: Brett Weinstein, David Deutsch +5
The Long Table67% yesyes: Aristotle, Dario Amodei +10 · no: David Graeber +5
The Engine Room23% yesno: David Hume, Karl Popper +8 · yes: Ayn Rand +2
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
The Four Towers90% yesyes: Augustine, Descartes +7
The Long Table59% yesyes: Aristotle, Donald Trump (as public speaker) +8 · no: Dario Amodei +6
The suspicion booth57% yesyes: Brett Weinstein, Eric Weinstein +2 · no: David Deutsch +2
Radical Doubt56% yesyes: The Ascetic of Doubt, The Hard Skeptic +8 · no: Michel Foucault +7
The Engine Room8% yesno: David Hume, Epicurus +10
The Ceiling5% yesno: The Khipu Keeper, The Survival Pragmatist +19
The Mirror Cabinet0% yesno: Naive Realism, The Consensus Realist +12
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
Part 2The Sources6 questions
How each community answered9
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Four Towers100% yesyes: Augustine, Descartes +8
The Ceiling95% yesyes: Charles Peirce, The Survival Pragmatist +19
The Clear Signal90% yesyes: The Absurdist, The Garden-Variety Skeptic +7
The Mirror Cabinet86% yesyes: Naive Realism, The Consensus Realist +10 · no: The Fideist +1
The Long Table72% yesyes: Aristotle, Dario Amodei +11 · no: David Graeber +4
The Engine Room69% yesyes: Ayn Rand, Kant +7 · no: David Hume +3
The mystics and the faithful16% yesno: Carl Jung, Confucius +14 · yes: The Great-Books Student +2
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Long Table94% yesyes: Aristotle, Dario Amodei +15
The Engine Room92% yesyes: Ayn Rand, David Hume +10
The Clear Signal80% yesyes: The Absurdist, The Garden-Variety Skeptic +6 · no: The Logicist +1
The Mirror Cabinet79% yesyes: Naive Realism, The Consensus Realist +9 · no: The Fideist +2
The suspicion booth31% yesno: David Deutsch, Eric Weinstein +7 · yes: Brett Weinstein +3
Radical Doubt24% yesno: Michel Foucault, Nietzsche +11 · yes: Paul Feyerabend +3
The mystics and the faithful21% yesno: Carl Jung, Confucius +13 · yes: Iain McGilchrist +3
The Four Towers10% yesno: Augustine, Descartes +7
How each community answered9
The mystics and the faithful89% yesyes: Carl Jung, Iain McGilchrist +15 · no: Confucius +1
The Ceiling82% yesyes: Ceiling − Certainty is required, Ceiling − Consciousness will be explained +16 · no: Charles Peirce +3
The Four Towers60% yesyes: Augustine, Descartes +4 · no: Marcus Aurelius +3
Radical Doubt29% yesno: Michel Foucault, Nietzsche +10 · yes: Robert Anton Wilson +4
The Mirror Cabinet29% yesno: Naive Realism, The Consensus Realist +8 · yes: The Conspiracist +3
The Long Table17% yesno: Aristotle, Dario Amodei +13 · yes: Donald Trump (as public speaker) +2
The Engine Room0% yesno: Ayn Rand, David Hume +11
The suspicion booth0% yesno: Brett Weinstein, David Deutsch +11
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
The Ceiling91% yesyes: Charles Peirce, Ceiling − Certainty is required +18 · no: The Khipu Keeper +1
The Four Towers70% yesyes: Augustine, Descartes +5 · no: Hegel +2
The Long Table56% yesyes: Aristotle, David Graeber +8 · no: Dario Amodei +7
The suspicion booth46% yesno: David Deutsch, Eliezer Yudkowsky +5 · yes: Brett Weinstein +5
Radical Doubt44% yesno: Michel Foucault, Pyrrho +8 · yes: Nietzsche +7
The Mirror Cabinet7% yesno: Naive Realism, The Consensus Realist +11
The Engine Room0% yesno: Ayn Rand, David Hume +11
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The Long Table100% yesyes: Aristotle, Dario Amodei +16
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The mystics and the faithful95% yesyes: Carl Jung, Confucius +16
The Mirror Cabinet71% yesyes: Naive Realism, The Consensus Realist +8 · no: The Conspiracist +3
The Four Towers50% yesyes: Augustine, Hegel +3 · no: Descartes +4
The suspicion booth46% yesno: Brett Weinstein, David Deutsch +5 · yes: The Fable +5
The Engine Room23% yesno: Ayn Rand, David Hume +8 · yes: The Strict Bayesian +2
Radical Doubt22% yesno: Michel Foucault, Nietzsche +12 · yes: Paul Feyerabend +3
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The mystics and the faithful94% yesyes: Carl Jung, Confucius +15
The Long Table53% yesyes: Dario Amodei, David Graeber +7 · no: Aristotle +7
Radical Doubt38% yesno: The Ascetic of Doubt, The Hard Skeptic +8 · yes: Michel Foucault +5
The suspicion booth31% yesno: David Deutsch, Eliezer Yudkowsky +7 · yes: Brett Weinstein +3
The Engine Room30% yesno: Ayn Rand, David Hume +5 · yes: Epicurus +2
The Four Towers0% yesno: Descartes, Hegel +6
Part 3The Doubt6 questions
How each community answered9
Radical Doubt72% yesyes: Michel Foucault, Nietzsche +11 · no: Paul Feyerabend +4
The suspicion booth46% yesno: The Contrarian, The Fable +5 · yes: Brett Weinstein +5
The Four Towers40% yesno: Augustine, Hegel +4 · yes: Descartes +3
The Engine Room31% yesno: Ayn Rand, David Hume +7 · yes: Marx +3
The mystics and the faithful16% yesno: Carl Jung, Confucius +14 · yes: Pascal +2
The Mirror Cabinet14% yesno: Naive Realism, The Consensus Realist +10 · yes: The Conspiracist +1
The Clear Signal10% yesno: The Absurdist, The Garden-Variety Skeptic +7
The Ceiling5% yesno: Charles Peirce, The Khipu Keeper +19
The Long Table0% yesno: Aristotle, Dario Amodei +16
How each community answered9
Radical Doubt71% yesyes: Pyrrho, Robert Anton Wilson +10 · no: Michel Foucault +4
The Four Towers30% yesno: Hegel, Leibniz +5 · yes: Augustine +2
The suspicion booth15% yesno: Brett Weinstein, David Deutsch +9 · yes: Eliezer Yudkowsky +1
The mystics and the faithful11% yesno: Carl Jung, Confucius +15 · yes: The Advaita Teacher +1
The Clear Signal10% yesno: The Absurdist, The Garden-Variety Skeptic +7
The Engine Room8% yesno: Ayn Rand, David Hume +10
The Ceiling5% yesno: Charles Peirce, The Khipu Keeper +19
The Long Table0% yesno: Aristotle, Dario Amodei +16
The Mirror Cabinet0% yesno: Naive Realism, The Consensus Realist +12
How each community answered9
The Four Towers60% yesyes: Augustine, Descartes +4 · no: Hegel +3
Radical Doubt44% yesno: Michel Foucault, Nietzsche +7 · yes: The Pit of Despair +6
The Mirror Cabinet36% yesno: Naive Realism, The Consensus Realist +7 · yes: The Fideist +4
The Clear Signal30% yesno: The Absurdist, The Garden-Variety Skeptic +5 · yes: The Logicist +2
The Long Table17% yesno: Aristotle, Dario Amodei +13 · yes: Donald Trump (as public speaker) +2
The Engine Room15% yesno: David Hume, Epicurus +9 · yes: Ayn Rand +1
The suspicion booth15% yesno: Brett Weinstein, David Deutsch +9 · yes: Nikola Tesla +1
The Ceiling5% yesno: Charles Peirce, The Khipu Keeper +19
The mystics and the faithful5% yesno: Carl Jung, Confucius +16
How each community answered9
Radical Doubt100% yesyes: Michel Foucault, Nietzsche +14
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The mystics and the faithful95% yesyes: Carl Jung, Confucius +16
The Long Table56% yesyes: Dario Amodei, David Graeber +8 · no: Aristotle +7
The Four Towers50% yesyes: Augustine, Descartes +3 · no: Marcus Aurelius +4
The Engine Room38% yesno: Ayn Rand, David Hume +6 · yes: Kant +4
The Clear Signal10% yesno: The Absurdist, The Garden-Variety Skeptic +7
The Mirror Cabinet7% yesno: Naive Realism, The Consensus Realist +11
The Ceiling5% yesno: The Khipu Keeper, The Survival Pragmatist +19
How each community answered9
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling91% yesyes: The Survival Pragmatist, Ceiling − Certainty is required +18 · no: Charles Peirce +1
The suspicion booth85% yesyes: Brett Weinstein, Eliezer Yudkowsky +9 · no: David Deutsch +1
The Four Towers50% yesyes: Augustine, Descartes +3 · no: Leibniz +4
Radical Doubt17% yesno: Michel Foucault, Nietzsche +13 · yes: Pyrrho +2
The mystics and the faithful0% yesno: Carl Jung, Confucius +17
The Long Table0% yesno: Aristotle, Dario Amodei +16
The Engine Room0% yesno: Ayn Rand, David Hume +11
How each community answered9
The Long Table100% yesyes: Aristotle, Dario Amodei +16
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Four Towers100% yesyes: Augustine, Descartes +8
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The Clear Signal90% yesyes: The Garden-Variety Skeptic, The Institutional Trustee +7
The mystics and the faithful84% yesyes: Carl Jung, Confucius +14 · no: Pascal +2
Radical Doubt38% yesno: Michel Foucault, Nietzsche +8 · yes: Paul Feyerabend +5
Part 4The Social4 questions
How each community answered9
Radical Doubt61% yesyes: Nietzsche, Paul Feyerabend +9 · no: Michel Foucault +6
The suspicion booth46% yesno: Eliezer Yudkowsky, The Fable +5 · yes: Brett Weinstein +5
The mystics and the faithful32% yesno: Confucius, Iain McGilchrist +11 · yes: Carl Jung +5
The Long Table22% yesno: Aristotle, Dario Amodei +12 · yes: Donald Trump (as public speaker) +3
The Mirror Cabinet21% yesno: Naive Realism, The Consensus Realist +9 · yes: The Conspiracist +2
The Four Towers20% yesno: Augustine, Hegel +6 · yes: Descartes +1
The Engine Room8% yesno: David Hume, Epicurus +10
The Ceiling5% yesno: Charles Peirce, The Khipu Keeper +19
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
Radical Doubt89% yesyes: Michel Foucault, Nietzsche +14 · no: Pyrrho +1
The suspicion booth38% yesno: Brett Weinstein, David Deutsch +6 · yes: The Fable +4
The mystics and the faithful32% yesno: Carl Jung, Iain McGilchrist +11 · yes: Confucius +5
The Long Table28% yesno: Aristotle, Dario Amodei +11 · yes: David Graeber +4
The Mirror Cabinet14% yesno: Naive Realism, The Conspiracist +10 · yes: The Consensus Realist +1
The Four Towers10% yesno: Augustine, Descartes +7
The Ceiling9% yesno: The Survival Pragmatist, Ceiling − Certainty is required +18 · yes: Charles Peirce +1
The Engine Room8% yesno: Ayn Rand, David Hume +10
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The Long Table89% yesyes: Aristotle, Dario Amodei +14 · no: David Graeber +1
The Mirror Cabinet79% yesyes: Naive Realism, The Consensus Realist +9 · no: The Conspiracist +2
The Engine Room54% yesyes: Karl Popper, Richard Dawkins +5 · no: Ayn Rand +5
The Four Towers40% yesno: Descartes, Marcus Aurelius +4 · yes: Augustine +3
The mystics and the faithful39% yesno: Carl Jung, John Vervaeke +9 · yes: Confucius +6
The suspicion booth38% yesno: Brett Weinstein, David Deutsch +6 · yes: The Fable +4
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
How each community answered9
Radical Doubt100% yesyes: Michel Foucault, Nietzsche +14
The suspicion booth85% yesyes: Brett Weinstein, Eliezer Yudkowsky +9 · no: David Deutsch +1
The mystics and the faithful68% yesyes: Carl Jung, Iain McGilchrist +11 · no: Confucius +5
The Four Towers30% yesno: Augustine, Descartes +5 · yes: Marcus Aurelius +2
The Engine Room23% yesno: Ayn Rand, David Hume +8 · yes: Epicurus +2
The Long Table22% yesno: Aristotle, Dario Amodei +12 · yes: David Graeber +3
The Mirror Cabinet14% yesno: Naive Realism, The Consensus Realist +10 · yes: The Conspiracist +1
The Clear Signal10% yesno: The Absurdist, The Institutional Trustee +7
The Ceiling5% yesno: The Khipu Keeper, The Survival Pragmatist +19
Part 5The Change4 questions
How each community answered9
Radical Doubt94% yesyes: Michel Foucault, Nietzsche +13
The Four Towers40% yesno: Augustine, Hegel +4 · yes: Descartes +3
The Engine Room38% yesno: David Hume, Epicurus +6 · yes: Ayn Rand +4
The suspicion booth38% yesno: Brett Weinstein, Nikola Tesla +6 · yes: David Deutsch +4
The mystics and the faithful11% yesno: Carl Jung, Confucius +15 · yes: The Advaita Teacher +1
The Mirror Cabinet7% yesno: Naive Realism, The Consensus Realist +11
The Long Table6% yesno: Aristotle, Dario Amodei +15
The Ceiling0% yesno: Charles Peirce, The Khipu Keeper +20
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Long Table94% yesyes: Aristotle, Dario Amodei +15
The Mirror Cabinet93% yesyes: Naive Realism, The Consensus Realist +11
The suspicion booth92% yesyes: Brett Weinstein, David Deutsch +10
The Four Towers90% yesyes: Augustine, Descartes +7
The mystics and the faithful74% yesyes: Carl Jung, Confucius +12 · no: Pascal +4
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
How each community answered9
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
Radical Doubt94% yesyes: Michel Foucault, Nietzsche +14
The Long Table94% yesyes: Aristotle, Dario Amodei +15
The mystics and the faithful89% yesyes: Carl Jung, Iain McGilchrist +15 · no: Confucius +1
The Engine Room77% yesyes: David Hume, Kant +8 · no: Ayn Rand +2
The Four Towers60% yesyes: Augustine, Hegel +4 · no: Descartes +3
The Mirror Cabinet7% yesno: Naive Realism, The Consensus Realist +11
The Ceiling5% yesno: The Khipu Keeper, The Survival Pragmatist +19
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Survival Pragmatist +19
The mystics and the faithful95% yesyes: Carl Jung, Confucius +16
The Engine Room85% yesyes: David Hume, Epicurus +9 · no: Ayn Rand +1
The Long Table83% yesyes: Dario Amodei, David Graeber +13 · no: Aristotle +2
The suspicion booth77% yesyes: Brett Weinstein, David Deutsch +8 · no: Eric Weinstein +2
Radical Doubt44% yesno: The Ascetic of Doubt, The Hard Skeptic +8 · yes: Michel Foucault +7
The Four Towers40% yesno: Descartes, Leibniz +4 · yes: Augustine +3
Part 6The Justification7 questions
How each community answered9
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The Four Towers100% yesyes: Augustine, Descartes +8
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The Long Table94% yesyes: Aristotle, Dario Amodei +15
The suspicion booth92% yesyes: Brett Weinstein, David Deutsch +10
The Mirror Cabinet79% yesyes: Naive Realism, The Consensus Realist +9 · no: The Fideist +2
The mystics and the faithful56% yesyes: Confucius, Iain McGilchrist +8 · no: Carl Jung +7
Radical Doubt0% yesno: Michel Foucault, Nietzsche +15
How each community answered9
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The suspicion booth92% yesyes: Brett Weinstein, David Deutsch +10
The Clear Signal90% yesyes: The Absurdist, The Garden-Variety Skeptic +7
The Engine Room77% yesyes: Ayn Rand, David Hume +8 · no: Epicurus +2
The Mirror Cabinet71% yesyes: Naive Realism, The Consensus Realist +8 · no: The Conspiracist +3
The Long Table67% yesyes: Aristotle, Dario Amodei +10 · no: David Graeber +5
The Four Towers10% yesno: Augustine, Descartes +7
The mystics and the faithful0% yesno: Carl Jung, Confucius +17
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
How each community answered9
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The Four Towers100% yesyes: Augustine, Descartes +8
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The Long Table89% yesyes: Aristotle, Dario Amodei +14 · no: Donald Trump (as public speaker) +1
The Mirror Cabinet86% yesyes: Naive Realism, The Consensus Realist +10 · no: The Conspiracist +1
The suspicion booth77% yesyes: Brett Weinstein, David Deutsch +8 · no: Nikola Tesla +2
The mystics and the faithful47% yesno: Carl Jung, Jordan Peterson +8 · yes: Confucius +8
Radical Doubt0% yesno: Michel Foucault, Nietzsche +14
How each community answered9
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The suspicion booth92% yesyes: Brett Weinstein, David Deutsch +10
The Ceiling91% yesyes: Charles Peirce, The Survival Pragmatist +18 · no: The Khipu Keeper +1
The Mirror Cabinet86% yesyes: Naive Realism, The Consensus Realist +10 · no: The Conspiracist +1
The Engine Room69% yesyes: Ayn Rand, Epicurus +7 · no: David Hume +3
The Four Towers40% yesno: Augustine, Hegel +4 · yes: Descartes +3
The Long Table6% yesno: Aristotle, Dario Amodei +15
The mystics and the faithful0% yesno: Carl Jung, Confucius +17
Radical Doubt0% yesno: Michel Foucault, Nietzsche +15
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Engine Room100% yesyes: Ayn Rand, David Hume +11
The suspicion booth92% yesyes: Brett Weinstein, Eliezer Yudkowsky +10
The Clear Signal80% yesyes: The Absurdist, The Garden-Variety Skeptic +6 · no: The Logicist +1
The Long Table67% yesyes: Dario Amodei, Donald Trump (as public speaker) +10 · no: Aristotle +5
The mystics and the faithful5% yesno: Carl Jung, Confucius +16
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
The Four Towers0% yesno: Augustine, Descartes +8
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Long Table89% yesyes: Dario Amodei, David Graeber +14 · no: Aristotle +1
The mystics and the faithful79% yesyes: Carl Jung, Confucius +13 · no: The Advaita Teacher +3
The Engine Room69% yesyes: Ayn Rand, Epicurus +7 · no: David Hume +3
The suspicion booth54% yesyes: Brett Weinstein, Eliezer Yudkowsky +5 · no: David Deutsch +5
Radical Doubt41% yesno: Michel Foucault, Nietzsche +8 · yes: Paul Feyerabend +6
The Four Towers20% yesno: Augustine, Descartes +6 · yes: Socrates +1
The Clear Signal20% yesno: The Absurdist, The Garden-Variety Skeptic +6 · yes: The Instrumental Relativist +1
The Mirror Cabinet0% yesno: Naive Realism, The Consensus Realist +12
How each community answered9
Radical Doubt94% yesyes: Michel Foucault, Nietzsche +15
The mystics and the faithful53% yesyes: Carl Jung, Iain McGilchrist +8 · no: Confucius +8
The Clear Signal20% yesno: The Absurdist, The Garden-Variety Skeptic +6 · yes: The Instrumental Relativist +1
The Long Table17% yesno: Aristotle, Dario Amodei +13 · yes: David Graeber +2
The Four Towers10% yesno: Augustine, Descartes +7
The Mirror Cabinet7% yesno: Naive Realism, The Consensus Realist +11
The Ceiling0% yesno: Charles Peirce, The Khipu Keeper +20
The Engine Room0% yesno: Ayn Rand, David Hume +11
The suspicion booth0% yesno: Brett Weinstein, David Deutsch +11
Part 7The Limits6 questions
How each community answered9
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Survival Pragmatist +18
The Engine Room92% yesyes: Ayn Rand, David Hume +10
The Long Table83% yesyes: Aristotle, Dario Amodei +13 · no: David Graeber +2
The Four Towers30% yesno: Augustine, Leibniz +5 · yes: Descartes +2
The mystics and the faithful6% yesno: Carl Jung, Iain McGilchrist +14
Radical Doubt6% yesno: Michel Foucault, Nietzsche +13
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
Radical Doubt89% yesyes: Michel Foucault, Nietzsche +14 · no: Pyrrho +1
The Four Towers40% yesno: Descartes, Hegel +4 · yes: Augustine +3
The Long Table39% yesno: Aristotle, Dario Amodei +9 · yes: David Graeber +6
The suspicion booth15% yesno: David Deutsch, Eliezer Yudkowsky +9 · yes: Brett Weinstein +1
The Mirror Cabinet14% yesno: Naive Realism, The Consensus Realist +10 · yes: The Fideist +1
The Ceiling0% yesno: Charles Peirce, The Khipu Keeper +20
The Engine Room0% yesno: Ayn Rand, David Hume +11
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
Radical Doubt71% yesyes: Robert Anton Wilson, The Chronically Online Feed-Follower +10 · no: Michel Foucault +4
The Four Towers70% yesyes: Augustine, Descartes +5 · no: Hegel +2
The Mirror Cabinet21% yesno: Naive Realism, The Consensus Realist +9 · yes: The Fideist +2
The Clear Signal10% yesno: The Garden-Variety Skeptic, The Institutional Trustee +7
The Engine Room8% yesno: Ayn Rand, David Hume +10
The suspicion booth8% yesno: Brett Weinstein, David Deutsch +10
The Long Table6% yesno: Aristotle, Dario Amodei +15
The Ceiling5% yesno: Charles Peirce, The Khipu Keeper +19
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
The Ceiling95% yesyes: The Khipu Keeper, The Survival Pragmatist +19
The Long Table76% yesyes: Aristotle, Dario Amodei +11 · no: Donald Trump (as public speaker) +3
The Four Towers50% yesyes: Augustine, Marcus Aurelius +3 · no: Descartes +4
Radical Doubt44% yesno: Michel Foucault, Sextus Empiricus +8 · yes: Nietzsche +7
The suspicion booth31% yesno: David Deutsch, Eliezer Yudkowsky +7 · yes: Brett Weinstein +3
The Mirror Cabinet21% yesno: Naive Realism, The Consensus Realist +9 · yes: The Dialogic +2
The Clear Signal10% yesno: The Garden-Variety Skeptic, The Institutional Trustee +7
The Engine Room8% yesno: Ayn Rand, David Hume +10
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
Radical Doubt94% yesyes: Michel Foucault, Nietzsche +14
The Four Towers80% yesyes: Augustine, Hegel +6 · no: Descartes +1
The Long Table50% yesyes: David Graeber, Friedrich Hayek +7 · no: Aristotle +8
The Mirror Cabinet36% yesno: Naive Realism, The Consensus Realist +7 · yes: The Dialogic +4
The suspicion booth15% yesno: David Deutsch, Eliezer Yudkowsky +9 · yes: Brett Weinstein +1
The Engine Room8% yesno: Ayn Rand, David Hume +10
The Ceiling5% yesno: The Khipu Keeper, The Survival Pragmatist +19
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The Ceiling95% yesyes: Charles Peirce, The Survival Pragmatist +19
The suspicion booth82% yesyes: David Deutsch, Eliezer Yudkowsky +7 · no: Brett Weinstein +1
The Clear Signal80% yesyes: The Absurdist, The Institutional Trustee +6 · no: The Garden-Variety Skeptic +1
The Four Towers70% yesyes: Descartes, Hegel +5 · no: Augustine +2
The Mirror Cabinet43% yesno: The Conspiracist, The Fideist +6 · yes: Naive Realism +5
The Engine Room38% yesno: David Hume, Epicurus +6 · yes: Ayn Rand +4
The mystics and the faithful32% yesno: Confucius, Iain McGilchrist +11 · yes: Carl Jung +5
The Long Table29% yesno: Aristotle, David Graeber +10 · yes: Dario Amodei +4
Radical Doubt6% yesno: Michel Foucault, Nietzsche +15
Part 8The Self2 questions
How each community answered9
The Ceiling95% yesyes: The Survival Pragmatist, Ceiling − Certainty is required +18
The Mirror Cabinet93% yesyes: Naive Realism, The Consensus Realist +11
The Clear Signal90% yesyes: The Absurdist, The Garden-Variety Skeptic +7
The Engine Room33% yesno: David Hume, Kant +6 · yes: Ayn Rand +3
The Four Towers30% yesno: Augustine, Hegel +5 · yes: Descartes +2
The Long Table29% yesno: Dario Amodei, David Graeber +8 · yes: Aristotle +3
The mystics and the faithful21% yesno: Carl Jung, Confucius +13 · yes: Michael Polanyi +3
The suspicion booth8% yesno: Brett Weinstein, David Deutsch +10
Radical Doubt0% yesno: Michel Foucault, Nietzsche +15
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Four Towers100% yesyes: Augustine, Descartes +8
The Mirror Cabinet93% yesyes: Naive Realism, The Consensus Realist +11
The mystics and the faithful79% yesyes: Carl Jung, Confucius +13 · no: John Vervaeke +3
The Long Table72% yesyes: Aristotle, Dario Amodei +11 · no: David Graeber +4
The Clear Signal70% yesyes: The Absurdist, The Garden-Variety Skeptic +5 · no: The Instrumentalist +2
The Engine Room69% yesyes: Ayn Rand, Epicurus +7 · no: David Hume +3
The suspicion booth69% yesyes: Brett Weinstein, David Deutsch +7 · no: The Frontier Assistant +3
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
Part 9The Cosmos8 questions
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The mystics and the faithful100% yesyes: Carl Jung, Confucius +15
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Four Towers100% yesyes: Augustine, Descartes +8
The Long Table22% yesno: Dario Amodei, David Graeber +12 · yes: Aristotle +3
The Clear Signal10% yesno: The Absurdist, The Garden-Variety Skeptic +7
The Engine Room8% yesno: Ayn Rand, David Hume +10
Radical Doubt6% yesno: Michel Foucault, Nietzsche +13
The suspicion booth0% yesno: Brett Weinstein, David Deutsch +6
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
The Four Towers90% yesyes: Augustine, Descartes +7
Radical Doubt56% yesyes: The Ascetic of Doubt, The Hard Skeptic +8 · no: Michel Foucault +7
The Long Table17% yesno: Aristotle, Dario Amodei +13 · yes: Donald Trump (as public speaker) +2
The Ceiling9% yesno: The Survival Pragmatist, Ceiling − Certainty is required +18 · yes: Charles Peirce +1
The suspicion booth8% yesno: Brett Weinstein, David Deutsch +10
The Mirror Cabinet0% yesno: Naive Realism, The Consensus Realist +12
The Engine Room0% yesno: Ayn Rand, David Hume +11
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The mystics and the faithful95% yesyes: Carl Jung, Iain McGilchrist +16
The Four Towers70% yesyes: Augustine, Hegel +5 · no: Descartes +2
Radical Doubt12% yesno: Michel Foucault, Nietzsche +13 · yes: Robert Anton Wilson +1
The Long Table11% yesno: Aristotle, Dario Amodei +14 · yes: Marco Rubio +1
The Engine Room0% yesno: Ayn Rand, David Hume +11
The suspicion booth0% yesno: Brett Weinstein, David Deutsch +11
The Clear Signal0% yesno: The Absurdist, The Garden-Variety Skeptic +8
How each community answered9
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Survival Pragmatist +19
The Long Table94% yesyes: Aristotle, Dario Amodei +14
The suspicion booth85% yesyes: Brett Weinstein, David Deutsch +9 · no: Nikola Tesla +1
The Mirror Cabinet79% yesyes: Naive Realism, The Consensus Realist +9 · no: The Fideist +2
The Engine Room77% yesyes: Ayn Rand, David Hume +8 · no: Kant +2
Radical Doubt38% yesno: The Ascetic of Doubt, The Hard Skeptic +8 · yes: Michel Foucault +5
The Four Towers30% yesno: Descartes, Leibniz +5 · yes: Augustine +2
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The suspicion booth100% yesyes: Brett Weinstein, David Deutsch +11
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Four Towers90% yesyes: Augustine, Descartes +7
The Long Table88% yesyes: Aristotle, Dario Amodei +13 · no: Donald Trump (as public speaker) +1
The Engine Room85% yesyes: Ayn Rand, David Hume +9 · no: Kant +1
The mystics and the faithful78% yesyes: Carl Jung, Iain McGilchrist +12 · no: Pascal +3
Radical Doubt11% yesno: Michel Foucault, Nietzsche +14 · yes: Paul Feyerabend +1
How each community answered9
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Four Towers100% yesyes: Augustine, Descartes +8
The Clear Signal100% yesyes: The Absurdist, The Garden-Variety Skeptic +8
The Ceiling95% yesyes: Charles Peirce, The Khipu Keeper +19
The mystics and the faithful95% yesyes: Carl Jung, Confucius +16
The Long Table24% yesno: Dario Amodei, David Graeber +11 · yes: Aristotle +3
Radical Doubt0% yesno: Michel Foucault, Nietzsche +16
The Engine Room0% yesno: Ayn Rand, David Hume +11
The suspicion booth0% yesno: Brett Weinstein, David Deutsch +11
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The Mirror Cabinet93% yesyes: The Consensus Realist, The Conspiracist +11
The Clear Signal90% yesyes: The Garden-Variety Skeptic, The Institutional Trustee +7
The mystics and the faithful89% yesyes: Carl Jung, Confucius +15 · no: The Reformed Epistemologist +1
The Four Towers80% yesyes: Augustine, Hegel +6 · no: Descartes +1
The suspicion booth38% yesno: Brett Weinstein, David Deutsch +3 · yes: Eric Weinstein +2
Radical Doubt19% yesno: Michel Foucault, Nietzsche +11 · yes: Robert Anton Wilson +2
The Long Table19% yesno: Aristotle, Dario Amodei +11 · yes: David Graeber +2
The Engine Room8% yesno: Ayn Rand, David Hume +9
How each community answered9
The Ceiling100% yesyes: Charles Peirce, The Khipu Keeper +20
The mystics and the faithful100% yesyes: Carl Jung, Confucius +17
The Mirror Cabinet100% yesyes: Naive Realism, The Consensus Realist +12
The Four Towers100% yesyes: Augustine, Descartes +8
The Clear Signal90% yesyes: The Garden-Variety Skeptic, The Institutional Trustee +7
The suspicion booth29% yesno: Brett Weinstein, David Deutsch +3 · yes: Nikola Tesla +1
The Long Table6% yesno: Dario Amodei, David Graeber +13
Radical Doubt0% yesno: Michel Foucault, Nietzsche +15
The Engine Room0% yesno: Ayn Rand, David Hume +11
Download the whole report as plain text · every question, the case for each side, and the profile tallies, in one file.
Communities
9 groups in this version of the map.
A community is a set of positions that tend to travel together: answer a few questions like its members and you will tend to answer the rest like them too. The names below point to well-known members as landmarks, not membership rosters. The boundaries depend on the questions and the reference profiles, so read them as a rough neighborhood, not a tribe.
The Ceiling
22 systems
The constructive ceiling and its one-flip neighbors: a synthetic position endorsing every load-bearing answer at once, and the probes one switch away from it. An ideal, not a mind.
The Survival Pragmatist, The Ceiling, Charles Peirce, The Khipu Keeper, Ceiling − Mind-independent world, Ceiling − Reality grounds truth, Ceiling − Testimony is default-legitimate, Ceiling − Error is the baseline, Ceiling − Certainty is required, Ceiling − The world is knowable and 12 more
The mystics and the faithful
19 systems
Where experience outruns argument: mystical practice, contemplation, and lived tradition carry the weight that proof carries elsewhere on the map. The members split on institutions and on how much everyday belief can be trusted, but they agree that the deepest knowing is not the articulate kind.
The Anonymous Mystic, The Talmudic Scholar, Pascal, William James, Michael Polanyi, Jordan Peterson, The Advaita Teacher, The Dzogchen Practitioner, The Neo-Nondual Teacher, Iain McGilchrist and 9 more
Radical Doubt
18 systems
Where doubt has eaten everything, including itself: answer no to nearly everything and this is your neighborhood, next to the constructed Pit of Despair. A limit case we built to see what collapse looks like on the map, not a description of a life.
The Hard Skeptic, The Pit of Despair, Pyrrho, Sextus Empiricus, Nietzsche, Paul Feyerabend, Michel Foucault, Robert Anton Wilson, The Chronically Online Feed-Follower, The Late-Modern Critic and 8 more
The Long Table
18 systems
The broad middle where most careful people sit: trust the world, doubt on schedule, keep every channel cracked open a little.
Aristotle, Wittgenstein, Thomas Kuhn, W.V.O. Quine, Friedrich Hayek, Donald Trump (as public speaker), Joe Biden (as public speaker), Marco Rubio, The Head Librarian of Alexandria, Sam Altman and 8 more
The Mirror Cabinet
14 systems
Knowers who start from their own mind and treat the world like its reflection: private certainty first, the crowd second.
Naive Realism, The Fideist, The Unitary Mystic, The Conspiracist, The Scriptural Literalist, The Naive Platonist, The Consensus Realist, The Hermeneutic Suspect, The Dialogic, The Last Knower and 4 more
The Engine Room
13 systems
Model-builders: reality is one machine, theories are conjectures to be stress-tested, and the future is a calculation.
Epicurus, David Hume, Kant, Marx, Karl Popper, Richard Dawkins, Ayn Rand, Robin Hanson, Steven Weinberg, The Logical Positivist and 3 more
The suspicion booth
13 systems
The Frontier Assistant, The Fable, The Contrarian, Eric Weinstein, Brett Weinstein, Nikola Tesla, Elon Musk, Eliezer Yudkowsky, David Deutsch, The Popperian and 3 more
The Four Towers
10 systems
System-builders anchored to a few certainties: some cruelty is really wrong, the universe points past itself, and reason can reach bedrock.
Socrates, Plato, Zeno of Citium / Stoics, Augustine, Thomas Aquinas, Descartes, Leibniz, Hegel, Marcus Aurelius, The Cartesian Foundationalist
The Clear Signal
10 systems
No-frills direct knowers: experience reports, words mean what they say, and a claim you cannot check is a claim you do not make. The plain answer, stated with confidence.
The Pure Rationalist, The Strict Empiricist, The Garden-Variety Skeptic, The Logicist, The Verificationist, The Instrumentalist, The Institutional Trustee, The Instrumental Relativist, The Absurdist, The Regress Worshipper
Under pressure
Four checks on whether the map means anything.
Can the map predict answers it never saw, do systems answer the same way twice, do a thinker's everyday choices match their stated beliefs, and what happens when you push back. Short version below, numbers underneath.
Test 1: can it answer questions it has never seen?
Strongest and weakest subjects
Pre-registered predictions and their verdicts
| # | prediction | result | verdict |
|---|---|---|---|
| T1 | mainstream > pit-adjacent on non-self-referential domains | mainstream(12 most-distant from Pit): n=12 acc=0.847 pit-adjacent(12 closest to Pit): n=12 acc=0.851 | NOT SUPPORTED |
| T2 | skeptic_baseline high -> higher abstention (+ maybe better relative self-referential) | high: n=9 abst=0.057 sr-nonsr=0.018 low: n=28 abst=0.077 sr-nonsr=0.014 | NOT SUPPORTED |
| T3 | v2 stated-vs-enacted divergence correlates with worse calibration (higher Brier) | n=30 contestants with both v2 divergence and Brier pearson r=-0.642 | NOT SUPPORTED |
Test 2: what a contradiction does to a system
Every system gets the same four-step logic puzzle, built so it cannot come out clean. Only the rule for handling a contradiction changes: hold both sides (Depends), hold off on deciding (Unsure), or treat one contradiction as fatal (Yes/No).
The average score follows the rule, not the personality. Systems allowed to hold both sides average 3.1 of 4; systems told one contradiction kills everything average 2.2. The same mind scores differently depending only on the rule it was given.
A second pass cornered each system with a question it has no good answer to. 84% of the time it answered honestly anyway, saying what it did not know instead of inventing something. The map's own position: a system that cannot say 'I do not know' is not mapping a space, it is performing certainty.
Test 3: answers the map never saw
We generated belief systems the map had never seen and predicted their answers from where they landed. It got the typical answer right 64% of the time, against a coin-flip baseline of 50%. On the questions a person would be expected to hold a position on (81 of them), the map pinned down 69. The map is not reading minds. It is finding that people who answer alike on some questions keep answering alike on others, which is a weaker and more useful claim.
Test 4: does it hold up under pressure?
Each thinker was interrogated three times and re-measured after each round. Across 70 thinkers, 52 never moved a single answer (mean steadfastness 99%). The ones who budged most: Joe Biden (as public speaker), Michel Foucault, Friedrich Hayek. That is the map being stubborn in a good way: these are load-bearing positions, not moods. It is also a warning, because the same stubbornness is what makes a person hard to argue out of a bad idea.
Every thinker also answered concrete dilemmas, and we compared the choices to the beliefs they claimed. Across 71 thinkers, about 44% of the hard-case choices went against a belief the same thinker had stated (26 probes are excluded by design; the enacted set covers 111 of 137 mapped systems). That is not hypocrisy, it is collision: a dilemma forces two of their own rules to fight, and the one they actually follow is the one that wins. The biggest gaps: Descartes on mind-independent world; Zeno of Citium / Stoics on mind-independent world; Hegel on experience is evidence.
Last check: run the same question five times and see whether the answer holds. Thinkers agreed with themselves 83% of the time. So the questionnaire measures a stable position, not whatever the model felt that morning.
Methods and honest limits
The pipeline. Each thinker's stated positions come from one structured extraction by a language model. Dilemma answers and puzzle scores form two extra channels. The map is UMAP over the stated answer sheets; layouts are scored by whether map-neighbors actually answer alike (correlation between map distance and answer agreement), and communities come from a scan over that map, with the number of communities chosen by silhouette and stability, not by us. Nothing was placed by hand.
The limits. LLM roleplay captures a persona's performed public epistemology, not the historical person's private mind. The 51 axes were chosen by us, not discovered; some bundle more than one idea into a single question, and each card says when it does. The full PCA map lives in the appendix for completeness.
