CogniqOS
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Sources · Registry of first observers

Origins

The registry of the people who discovered, coined, popularised or researched the biases, effects and tools CogniqOS maps — each linked back to the concepts they put on the record.

  • 630Concepts
  • 264Originators
  • 265Discovered
  • 93Popularised
  • 7Coined
  • 66Researched
264 shown
Thomas Schelling

Thomas Schelling

1921–2016 · Harvard

Turned strategy and commitment into a science of focal points and credible threats.

Originated
PrecommitmentCoordination FailureCredibility TrapSchelling PointsIdentifiable Victim Effect
Scott Alexander©

Scott Alexander

Astral Codex Ten

Blogger whose essays gave names to social-epistemic traps like the motte-and-bailey.

Originated
Concealed Ovulation (Cryptic Ovulation)Motte-and-BaileyThe Toxoplasma of RageScissor Statements
Robert Trivers

Robert Trivers

b. 1943 · Rutgers

Built the evolutionary logic of reciprocity, self-deception and parental investment.

Originated
Reciprocal Altruism (Trivers)AnisogamyParental Investment TheoryTrivers-Willard Hypothesis
Aristotle

Aristotle

384–322 BC · Philosophy

Catalogued the first fallacies and rhetorical appeals we still teach today.

Originated
The Ambiguity FallacyAppeal to EmotionBegging the QuestionThe Golden Mean
Leon Festinger

Leon Festinger

1919–1989 · Stanford

Discovered cognitive dissonance - the discomfort that quietly rewrites belief.

Originated
Commitment BiasDeindividuationSocial Comparison Theory
Sam Peltzman©

Sam Peltzman

b. 1940 · Chicago

Found that safety measures get partly cancelled by riskier behaviour.

Originated
Regulatory CaptureMoral HazardRisk Compensation (The Peltzman Effect)
Robert Axelrod

Robert Axelrod

b. 1943 · Michigan

Ran the tournaments that showed why cooperation beats defection over time.

Originated
Prisoner’s DilemmaTit for TatIterated Games vs One-Shot Games
Karl Popper

Karl Popper

1902–1994 · LSE

Made falsifiability the line between science and everything that only sounds like it.

Originated
UnfalsifiabilityThe Paradox of Tolerance
Henri Tajfel

Henri Tajfel

1919–1982 · Bristol

Showed the barest hint of a group is enough to trigger in-group favouritism.

Originated
In-Group BiasOut-Group Derogation
John Jost

John Jost

b. 1968 · NYU

Built system-justification theory - why people defend the very systems that fail them.

Originated
Outgroup FavoritismSystem Justification
Robert Cialdini

Robert Cialdini

b. 1945 · Arizona State

Codified the levers of persuasion, from social proof to authority.

Originated
Social ProofThe Messenger Effect
Charles Goodhart

Charles Goodhart

b. 1936 · LSE

Gave us Goodhart's law - a measure that becomes a target stops being a good measure.

Originated
Goodhart’s LawThe Noble Edge Effect
Robert Rosenthal

Robert Rosenthal

1933–2024 · UC Riverside

Demonstrated how an observer's expectations quietly shape the result they get.

Originated
Observer Expectancy EffectThe Pygmalion Effect
Robert Sapolsky

Robert Sapolsky

b. 1957 · Stanford

Traces how stress and biology quietly steer behaviour we call choice.

Originated
Sapolsky's FogThe Sapolsky Stress Model
C. Northcote Parkinson

C. Northcote Parkinson

1909–1993 · Naval historian

Coined Parkinson's law - work expands to fill the time available.

Originated
Parkinson’s LawBikeshedding (Law of Triviality)
John von Neumann

John von Neumann

1903–1957 · Princeton

Founded game theory - the maths of dominant strategies and zero-sum thinking.

Originated
Dominant StrategyZero-Sum vs Positive-Sum Framing
Paul Lazarsfeld

Paul Lazarsfeld

1901–1976 · Columbia

Founded the study of how influence flows through people, not just media.

Popularised
The Two-Step Flow TheoryHomophily
Irving Copi©

Irving Copi

1917–2002 · Logic

His textbook fixed the modern catalogue of informal fallacies.

Originated
The Composition and Division FallaciesArgument from Ignorance

Edward L. Thorndike

1874-1949 · Teachers College, Columbia University

Named the halo effect after officers rated soldiers' looks, character and skill as one blur.

Originated
The Halo EffectGamma Bias
Klaus Conrad

Klaus Conrad

1905–1961 · Psychiatry

Coined apophenia - seeing meaningful patterns in noise.

Originated
Abraham Luchins©

Abraham Luchins

1914–2005 · Psychology

His water-jar studies named the Einstellung effect - a learned method that blinds you to a simpler one.

Originated
Karl Duncker©

Karl Duncker

1903–1940 · Gestalt psychology

His candle problem defined functional fixedness - we only see an object’s usual use.

Originated
John A. Swets

John A. Swets

1928–2016 · Cognitive psychology

Co-founded signal detection theory - separating true signal from noise and bias.

Originated
Daniel Ellsberg

Daniel Ellsberg

1931–2023 · Economics · Analysis

His paradox showed people flee ambiguity even when the odds are identical.

Originated
Gary Klein©

Gary Klein

b. 1944 · Cognitive psychology

Devised the premortem - imagine the failure first, then work back to prevent it.

Originated
Thomas Nagel

Thomas Nagel

b. 1937 · NYU

Framed moral luck - we judge people for outcomes they did not control.

Originated
Charles Duhigg

Charles Duhigg

b. 1974 · Writer · The Power of Habit

Popularised the habit loop and commitment devices for a mass audience.

Originated
Hermann Ebbinghaus

Hermann Ebbinghaus

1850–1909 · Experimental psychology

Plotted the forgetting curve, the first hard law of memory over time.

Originated
Thomas Bayes

Thomas Bayes

c. 1701–1761 · Mathematics

His theorem is the maths of updating belief as evidence arrives.

Originated
Kenneth Savitsky

Kenneth Savitsky

Williams College

The illusion of asymmetric insight - we think we read others better than they read us.

Originated
Illusion of Asymmetric Insight
Ola Svenson©

Ola Svenson

Stockholm

Found most drivers rate themselves above average - illusory superiority in one line.

Originated
Illusory Superiority
Adam Waytz

Adam Waytz

Northwestern

Motive attribution asymmetry - each side thinks the other is driven by hate.

Originated
Motive Attribution Asymmetry
Sigmund Freud

Sigmund Freud

1856–1939 · Psychoanalysis

Named the narcissism of small differences - we reserve our fiercest disputes for near-neighbours.

Originated
Narcissism of Small Differences
Morton Deutsch

Morton Deutsch

1920–2017 · Columbia

Named normative social influence - conforming to be liked, not to be right.

Originated
Normative Social Influence

George Quattrone

1954–1984 · Stanford

Outgroup homogeneity - they all look alike, we are all individuals.

Originated
Outgroup Homogeneity Bias
Elliot Aronson

Elliot Aronson

b. 1932 · UC Santa Cruz

The pratfall effect - a visible flaw can make the competent more likeable.

Originated
The Pratfall Effect
Muzafer Sherif

Muzafer Sherif

1906–1988 · Social psychology

His Robbers Cave study showed how fast groups form norms and rivalries.

Originated
Social Norms
Anthony Greenwald

Anthony Greenwald

b. 1939 · Washington

Built the Implicit Association Test that put implicit bias on the map.

Originated
Unconscious Bias (Implicit Bias)
G. K. Chesterton

G. K. Chesterton

1874–1936 · Writer

Chesterton’s fence - do not remove a rule until you know why it was built.

Originated
Chesterton’s Fence
Douglas Walton

Douglas Walton

1942–2020 · Argumentation theory

Formalised the straw man and the catalogue of everyday fallacies.

Originated
The Straw Man Fallacy
Kenneth Arrow

Kenneth Arrow

1921–2017 · Stanford

Proved no voting system can fairly satisfy every reasonable rule at once.

Originated
Arrow’s Impossibility Theorem
Daniel Yankelovich©

Daniel Yankelovich

1924–2017 · Social research

Named the McNamara fallacy - what cannot be measured is dismissed as unreal.

Originated
The McNamara Fallacy
Garrett Hardin

Garrett Hardin

1915–2003 · UC Santa Barbara

The tragedy of the commons - shared resources ruined by rational self-interest.

Originated
The Tragedy of the Commons
Maya Bar-Hillel©

Maya Bar-Hillel

b. 1943 · Hebrew University

Documented the base-rate fallacy - vivid detail drowns out the odds.

Originated
The Base Rate Fallacy
David M. Eddy©

David M. Eddy

b. 1941 · Medicine · Decision science

Showed how a rare disease turns a positive test into a likely false alarm.

Popularised
The False Positive Paradox
Scott Feld©

Scott Feld

Purdue

The friendship paradox - on average your friends have more friends than you do.

Originated
The Friendship Paradox
Steve Selvin©

Steve Selvin

b. 1941 · Berkeley

Posed the Monty Hall problem, the switch that our intuition always gets wrong.

Popularised
The Monty Hall Problem
Vladimir Vapnik©

Vladimir Vapnik

b. 1936 · Statistics · Machine learning

His theory pinned down overfitting - a model that memorises noise, not signal.

Originated
Overfitting
Uri Simonsohn©

Uri Simonsohn

Esade

Named p-hacking - torturing data until it confesses a false result.

Originated
P-Hacking
Francis Galton

Francis Galton

1822–1911 · Statistics

Discovered regression to the mean, the trap behind most illusory trends.

Originated
Regression to the Mean Blindness
Abraham Wald

Abraham Wald

1902–1950 · Statistics

His wartime bullet-hole analysis is the founding case of survivorship bias.

Originated
George Akerlof

George Akerlof

b. 1940 · Berkeley

The market for lemons showed how hidden information wrecks a market.

Originated
Adverse Selection
Drazen Prelec

Drazen Prelec

b. 1955 · MIT

Showed cards make us spend more - the pain of paying is deferred.

Originated
The Cashless Effect
Joel Huber©

Joel Huber

Duke

The decoy effect - a third, worse option flips which of two you prefer.

Originated
The Decoy Effect
Priya Raghubir©

Priya Raghubir

NYU

The denomination effect - we spend small coins faster than one large note.

Originated
The Denomination Effect
Hermann Heinrich Gossen©

Hermann Heinrich Gossen

1810–1858 · Economics

First stated diminishing marginal utility - each extra unit is worth less.

Originated
Diminishing Marginal Utility
Hersh Shefrin

Hersh Shefrin

b. 1948 · Santa Clara

The disposition effect - we sell winners too early and ride losers too long.

Originated
The Disposition Effect
Chip Heath©

Chip Heath

b. 1963 · Stanford

Extrinsic incentive bias - we assume others work for money more than we do.

Originated
Extrinsic Incentive Bias
Shlomo Benartzi©

Shlomo Benartzi

b. 1968 · UCLA

Naive diversification - splitting evenly across options rather than wisely.

Originated
Naive Allocation
Mark Lepper

Mark Lepper

b. 1944 · Stanford

The overjustification effect - paying for play can kill the love of it.

Originated
The Overjustification Effect
Else Frenkel-Brunswik©

Else Frenkel-Brunswik

1908–1958 · Psychology

Named intolerance of ambiguity, later tied to the authoritarian personality.

Originated
Ambiguity Tolerance
Gilbert Ryle

Gilbert Ryle

1900–1976 · Oxford

Named the category mistake - treating one kind of thing as another.

Originated
Category Error
Alfred Korzybski

Alfred Korzybski

1879–1950 · Philosophy · Semantics

“The map is not the territory” - our models are never the thing itself.

Originated
Map vs Territory
Vincent Felitti©

Vincent Felitti

b. 1937 · Kaiser Permanente

The ACE study tied childhood adversity to lifelong health outcomes.

Originated
Adverse Childhood Experiences (ACE Score)
Ivan Pavlov

Ivan Pavlov

1849–1936 · Physiology · Nobel laureate

Classical conditioning - the reflex that learns to fire on a cue.

Originated
Classical Conditioning (Pavlovian Association)
Raymond Cattell

Raymond Cattell

1905–1998 · Psychology

Split intelligence into fluid and crystallised - raw problem-solving vs stored knowledge.

Originated
Crystallised Intelligence
Robin Dunbar

Robin Dunbar

b. 1947 · Oxford

Dunbar’s number - the ceiling on how many real relationships a mind can hold.

Originated
The Grooming Gap
Donald O. Hebb

Donald O. Hebb

1904–1985 · McGill

Neurons that fire together wire together - the rule behind learning in the brain.

Originated
Hebb’s Rule
Ivan Illich

Ivan Illich

1926–2002 · Social critic

Named iatrogenesis - the harm caused by the very system meant to help.

Originated
Iatrogenesis
Giacomo Rizzolatti

Giacomo Rizzolatti

b. 1937 · Parma

Discovered mirror neurons, cells that fire both when we act and when we watch.

Originated
Mirror Neurons
Maria Ovsiankina©

Maria Ovsiankina

1898–1993 · Psychology

The Ovsiankina effect - an interrupted task pulls us back to finish it.

Popularised
The Ovsiankina Effect (Hemingway Effect)
C. Sue Carter

C. Sue Carter

b. 1944 · Indiana University

Mapped how oxytocin and vasopressin shape bonding and trust.

Originated
Oxytocin vs. Vasopressin
Fabrizio Benedetti©

Fabrizio Benedetti

b. 1956 · Turin

Mapped the biology of the placebo effect - expectation altering the body.

Originated
The Placebo Effect
Stewart Wolf©

Stewart Wolf

1914–2005 · Medicine

The Roseto effect - tight community ties protecting a town’s heart health.

Originated
The Roseto Effect
David E. Meyer©

David E. Meyer

b. 1943 · Michigan

Measured switch cost - the hidden tax every time attention changes task.

Originated
The Switch Cost Effect
Kent Berridge

Kent Berridge

b. 1957 · Michigan

Split wanting from liking - desire and pleasure run on different brain systems.

Originated
The Want-Like Split (Berridge's Paradox)
Elaine Morgan

Elaine Morgan

1920–2013 · Writer · Evolution

Popularised the aquatic ape hypothesis of human origins.

Popularised
The Aquatic Ape Hypothesis
Daniel Fessler

Daniel Fessler

UCLA

The crazy-bastard hypothesis - reckless risk-taking as a costly signal of formidability.

Originated
The Crazy Bastard Hypothesis
Amotz Zahavi

Amotz Zahavi

1928–2017 · Tel Aviv

The handicap principle - costly signals are trusted because they are costly.

Originated
The Handicap Principle
W. D. Hamilton

W. D. Hamilton

1936–2000 · Evolutionary biology

Kin selection - altruism pays when it helps copies of your own genes.

Originated
Kin Selection (Hamilton’s Rule)
Malte Andersson©

Malte Andersson

b. 1941 · Gothenburg

Tested sexual selection and the lek - where males display and females choose.

Popularised
The Lek Hypothesis
Steven Gangestad©

Steven Gangestad

b. 1950 · New Mexico

Studied the ovulatory-shift hypothesis in human mate preference.

Originated
Ovulatory Shift Hypothesis
Leigh Van Valen

Leigh Van Valen

1935–2010 · Evolutionary biology

The Red Queen - species must keep evolving just to hold their ground.

Originated
The Red Queen Hypothesis
Sarah Brosnan©

Sarah Brosnan

Georgia State

Showed capuchins reject unequal pay - fairness runs deeper than humans.

Originated
Sensitivity to Fairness
Ronald Fisher

Ronald Fisher

1890–1962 · Statistics · Genetics

The sexy-son hypothesis - attractiveness itself can be the trait selected for.

Originated
The Sexy Son Hypothesis
Edvard Westermarck

Edvard Westermarck

1862–1939 · Anthropology

The Westermarck effect - childhood closeness suppresses later attraction.

Originated
The Westermarck Effect
Carl Sagan

Carl Sagan

1934–1996 · Astronomy · Science writer

Popularised pareidolia - the face in the clouds, the pattern in the noise.

Originated
Pareidolia
Daniel Oppenheimer

Daniel Oppenheimer

Carnegie Mellon

Showed disfluency can deepen thought - harder-to-read text is better remembered.

Originated
Processing Difficulty Effect
Antonia Abbey©

Antonia Abbey

Wayne State

Documented sexual overperception - misreading friendliness as sexual interest.

Popularised
Sexual Overperception Bias
Elaine Hatfield

Elaine Hatfield

b. 1937 · Social psychology

Documented emotional contagion - moods spread from person to person.

Originated
Emotional Contagion
C. Daniel Batson

C. Daniel Batson

b. 1943 · Social psychology

The empathy-altruism hypothesis - empathy can produce genuinely selfless help.

Originated
Empathy-Altruism Hypothesis
Mihaly Csikszentmihalyi

Mihaly Csikszentmihalyi

1934–2021 · Psychology

Named flow - total absorption where challenge and skill meet.

Originated
The Flow State
Martin Seligman

Martin Seligman

b. 1942 · Pennsylvania

Discovered learned helplessness, then built positive psychology around its cure.

Originated
Learned Helplessness
Joseph LeDoux

Joseph LeDoux

b. 1949 · NYU

Traced the fast fear pathway behind the emotional hijack of the amygdala.

Originated
Limbic Hijacking
Ernest Becker©

Ernest Becker

1924–1974 · Anthropology

The denial of death seeds terror management - culture as a shield against mortality.

Originated
Terror Management Theory

Lisanne Bainbridge

UCL

The ironies of automation - automating a task can deskill the human who oversees it.

Originated
Automation Bias
Betsy Sparrow©

Betsy Sparrow

Columbia

The Google effect - we remember where to find facts, not the facts themselves.

Originated
The Google Effect
Riley Goodside©

Riley Goodside

Scale AI

Named prompt injection - hijacking a language model through its own input.

Originated
Prompt Injection
Michael Jensen©

Michael Jensen

1939–2024 · Economics · Finance

Formalised the principal-agent problem - when the agent’s interests diverge from yours.

Originated
The Principal-Agent Problem

Jon Jecker

Social psychology

The Ben Franklin effect - doing someone a favour makes you like them more.

Originated
The Benjamin Franklin Effect
David Ricardo

David Ricardo

1772–1823 · Economics

Comparative advantage - even the weaker party gains from specialising and trading.

Originated
Comparative Advantage
Joseph Schumpeter

Joseph Schumpeter

1883–1950 · Economics

Creative destruction - the storm of innovation that scraps the old to build the new.

Originated
Creative Destruction
Thomas Gresham

Thomas Gresham

1519–1579 · Finance

Gresham’s law - bad money drives out good when both must trade at par.

Originated
Gresham's Law
Charlie Munger

Charlie Munger

1924–2023 · Investing

“Show me the incentive and I’ll show you the outcome” - incentive design in one line.

Originated
Incentive Design
Robert Zajonc

Robert Zajonc

1923–2008 · Social psychology

The mere-exposure effect - familiarity alone breeds liking.

Originated
The Mere Exposure Effect
Robert Solow

Robert Solow

1924–2023 · Economics · Nobel laureate

Named the productivity paradox - computers everywhere except in the statistics.

Originated
The Productivity Paradox
William F. Sharpe

William F. Sharpe

b. 1934 · Finance · Nobel laureate

The risk premium and CAPM - the price the market pays you to bear risk.

Originated
Risk Premium
Oliver Williamson

Oliver Williamson

1932–2020 · Economics · Nobel laureate

Built transaction-cost economics - why firms exist instead of pure markets.

Originated
Transaction Costs
Lewis Fry Richardson

Lewis Fry Richardson

1881–1953 · Mathematics · Physics

Modelled arms races as coupled equations of mutual escalation.

Originated
The Arms Race Dynamic
Mancur Olson

Mancur Olson

1932–1998 · Economics · Political science

The free-rider problem - why groups under-supply the goods everyone wants.

Originated
The Free Rider Problem
John Nash

John Nash

1928–2015 · Mathematics · Nobel laureate

The Nash equilibrium - the point where no player gains by moving alone.

Originated
Nash Equilibrium
Jean-Jacques Rousseau

Jean-Jacques Rousseau

1712–1778 · Philosophy

The stag hunt - the dilemma of trust between cooperation and safe self-interest.

Originated
The Stag Hunt
Brendan Nyhan

Brendan Nyhan

b. 1978 · Dartmouth

Studied belief perseverance - corrections that fail to dislodge a false belief.

Originated
Belief Perseverance
Lynn Hasher©

Lynn Hasher

Toronto

The illusory truth effect - repetition alone makes a claim feel true.

Originated
The Illusory Truth Effect
Mike Masnick

Mike Masnick

b. 1974 · Techdirt

Coined the Streisand effect - suppressing information only spreads it.

Originated
The Streisand Effect
Masaaki Kurosu©

Masaaki Kurosu

b. 1948 · Hitachi

The aesthetic-usability effect - pretty interfaces feel easier to use.

Originated
The Aesthetic-Usability Effect
Richard Dawkins

Richard Dawkins

b. 1941 · Oxford

Coined the meme - an idea that spreads and mutates like a gene.

Originated
Meme Theory
Hans Moravec©

Hans Moravec

b. 1948 · Carnegie Mellon

Moravec’s paradox - what is hard for machines is easy for us, and vice versa.

Originated
Moravec’s Paradox
Jonathan Haidt

Jonathan Haidt

b. 1963 · NYU

Named safetyism - the overprotection that leaves people more fragile.

Popularised
Safetyism
Eliyahu Goldratt©

Eliyahu Goldratt

1947–2011 · Management science

The theory of constraints - a system is only as fast as its tightest bottleneck.

Originated
Bottlenecks (Theory of Constraints)
Norbert Wiener

Norbert Wiener

1894–1964 · Mathematics · Cybernetics

Founded cybernetics - the science of feedback loops and control.

Originated
Feedback Loops
Elon Musk

Elon Musk

b. 1971 · Engineering · Business

Popularised first-principles thinking - reason up from physics, not analogy.

Popularised
First Principles Thinking
Benjamin Graham

Benjamin Graham

1894–1976 · Investing

Margin of safety - buy with a buffer wide enough to survive being wrong.

Originated
Margin of Safety
Malcolm Gladwell

Malcolm Gladwell

b. 1963 · Writer · Journalist

Popularised the tipping point - the threshold where change goes vertical.

Originated
Phase Transitions
Antony Flew

Antony Flew

1923–2010 · Philosophy

The no-true-Scotsman move - redefining a term to dodge a counterexample.

Originated
No True Scotsman
Dietrich Bonhoeffer

Dietrich Bonhoeffer

1906–1945 · Theology

His theory of stupidity - the compliant crowd is more dangerous than malice.

Popularised
Bonhoeffer’s Theory of Stupidity
Enrico Fermi

Enrico Fermi

1901–1954 · Physics · Nobel laureate

The Fermi paradox - if the universe should teem with life, where is everybody?

Originated
The Fermi Paradox
Jim Collins

Jim Collins

b. 1958 · Management · Writer

The Stockdale paradox - confront brutal facts yet never lose faith in the end.

Popularised
The Stockdale Paradox
Robert Kurzban©

Robert Kurzban

b. 1969 · Evolutionary psychology

Co-author of 'The omission strategy' - omission as blame avoidance.

Researched

Colin Camerer

b. 1959 · California Institute of Technology

Co-named the curse of knowledge: once you know something you can't judge it as someone who doesn't.

Originated

Portraits are licence-clean images from Wikimedia Commons (Public Domain / Creative Commons), credited on hover; people with no free photo keep a monogram. Built from the Credit: lines in the Lexicon. This is the first 264 of a growing registry.