What "hard evolutionary science" would you like to see? Anything beyond statistical IQ data is speculation (at this point).
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...exactly.
End of conversation
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The data says it's happening. Maybe you have better data? If you're waiting until it can be cashed-out into biochemistry, a few years yet.
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I was gonna make a joke about digging up the writers' backgrounds so I can a priori reject their findings but looks like I'm too late. Fug.
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