Why are we pre-disposed towards conspiracy theories?

[ via Interconnected ] The Economist reports on recent work on why people latch onto conspiracy theories. Human brains may have evolved to look for casual, and not subtle, explanations of the phenomena we observe. If we see a big effect such as an assassination, a disaster, or a war, but there’s no obvious corresponding large cause, then we tend to doubt the known facts and look for our cigarette smoking person.

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