Confirmation Bias

Confirmation bias — the tendency to seek out and interpret new evidence so it confirms what you already believe — is one of the most cross-referenced cognitive errors in Kyle’s reading. Charlie Munger names it “a term of opprobrium,” casting it as the opposite of Charles Darwin’s discipline: Darwin “trained himself, early, to intensively consider any evidence tending to disconfirm any hypothesis of his, more so if he thought his hypothesis was a particularly good one.” Munger roots it in Inconsistency-Avoidance Tendency and prescribes antidotes like deliberately bringing in “able and articulate disbelievers.” The Black Swan supplies the formal version — “the error of confirmation,” generalizing from preselected confirmatory instances — and illustrates it with Hempel’s raven paradox (a red Mini Cooper “confirming” that all swans are white) and the observation that “the more information you have, the more justified you will feel in your views.”

The Righteous Mind locates the source (Wason coined the term) and frames reasoning as an “inner lawyer” that asks “Can I believe it?” of congenial claims and “Must I believe it?” of unwelcome ones — protecting beliefs as possessions. The Death of Expertise extends it to media and politics: “the modern media… is a huge exercise in confirmation bias,” where people “do not seek information so much as confirmation.” How To Take Smart Notes turns it into a writing-process warning — starting from a fixed hypothesis “is a sure-fire way to let confirmation bias run rampant,” so the antidote is to treat understanding as a starting point and actively seek disconfirming evidence (Self-Criticism). Kyle’s note in The Psychology of Money captures the everyday form: “the more you want something to be true, the more likely you are to believe a story that overestimates its odds.”

Context: Confirmation bias is a well-documented finding in cognitive psychology, first named by Peter Wason in the 1960s, describing the human tendency to favor information that confirms pre-existing beliefs.

Where this appears

• Charlie Munger — The Psychology of Human Misjudgment — confirmation bias as the opposite of Darwin’s disconfirmation discipline; rooted in Inconsistency-Avoidance Tendency
• The Black Swan — “the error of confirmation”; the raven paradox and the more-information-more-conviction trap
• The Righteous Mind — Wason’s coinage; reasoning as an “inner lawyer” guarding beliefs
• The Death of Expertise — modern media as “a huge exercise in confirmation bias”; seeking confirmation over information
• How To Take Smart Notes — fixing a hypothesis early lets confirmation bias “run rampant”; seek disconfirming evidence
• The Psychology of Money — wanting something true makes you believe odds-overestimating stories
• Man-with-a-Hammer Tendency — the bias confirmation bias most closely approximates among Munger’s misjudgments