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Natural selection

Scientific America explores why so many of us readily subscribe to conspiracy theories and draw conclusions from questionable patterns.  It turns out we prefer type I over type II errors.

When our ancestors still hunted in the woods, it’s better to assume that rattle came from a poisonous snake and run, than to take your chances and get bitten. As a result, natural selection favoured those that assumed all patterns were real.

In other words, evolution hearted paranoia.

[via Freakonomics]

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