Male humans get into fights about 1/1000th as often as male chimps, and we've been self-domesticating for lower aggression for about 300,000 years -- Harvard anthropologist Richard Wrangham in talk today at @UNM.
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Wrangham argues the key was tribal groups using language to conspire to safely execute bullies, psychopaths, and tyrants.
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In other words, capital punishment was crucial in human evolution.
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I don’t think that’s implausible. The question is whether the homicide selection pressure was necessary for the pattern of self-domestication to which Wrangham refers. (I’m also a big fan of his cooking theory, but some aspects were sensationalist marketing.)
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Don’t let idiots reproduce
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Only works if the communities also ostracized the (male) children of the aggressors
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I don't see why psychopathy couldn't pass through the female line, although it would be more violently expressed in males
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...and violent behavior is heritable
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The question remains: Have we evolved past it?
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