wisdom of crowds

Group judgment's accuracy

Wisdom of crowds is the principle that aggregate judgments from many people often prove more accurate than individual expert opinions.

The classic example: guessing the weight of an ox at a fair—the average of all guesses beats most individual estimates.

The concept applies to prediction markets, polling, and collaborative filtering: The wisdom of crowds powers Wikipedia's accuracy over time.

It works best when opinions are independent; groupthink undermines it.

Related

collective behavior · consensus · group decision · crowdsourcing · prediction · markets · voting · aggregation · democracy · popular vote · polling · estimation · guessing · averaging · diversity · opinions · expertise · masses

Categories
Opposites
collective vs. individual judgment

wisdom of crowdsexpert opinion

Informed judgment from specialists

technocracy · philosopher king · one-man rule

crowd intelligence vs. crowd dysfunction

wisdom of crowdsgroupthink

Conformity-driven poor decisions

mob mentality · herd behavior · mob rule · mass hysteria · herd mentality

epistemic quality of collective judgment

wisdom of crowdsmass delusion

Widespread false belief shared socially

Family

wisdom, wiser, wisest, wisely, unwise, crowd, crowds, crowded, crowding

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Top 500,000
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Used worldwide · Timeless · Abstract · Positive · Rated G