Triver's editors must have been asleep. The first half is a jumbled mess of "throw ideas out and see what sticks."
The second half is putrid anti-U.S. ranting, with the conclusion that anyone who doesn't agree with him is guilt of believing "false historical narratives." Sounds like something out of the Stalin era. Triver's for all his brainpower can distinguish between opinion and self-deception.
He should heed his own advice.
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The Folly of Fools