That's not a force of nature; it's because the advantages to intelligence aren't allowed to result in more surviving children - hemmed in by restrictions on the high and subsidies for the low. The natural outcome is what's happened with income inequality.
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Some K-12 lifelong friendships (in fact, more at the elite level I'd think); people in elite level K-12 are all on the track to end up in elite universities.
End of conversation
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