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It's bad, but maybe not -as bad- as this. If there's a stable, genetically unmixed native population, those high IQ individuals will continue to exist (all other things being equal) since the native IQ distribution remains unchanged by introduction of the lower IQ immigrants.
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Fertility rates say "no" to this idea. But could be fixed perhaps if govt wanted to. Apparently, govt doesn't want to or too incompetent.
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Oof.
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New conversation -
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How much of this decline in piagetian tasks is "brain drain" in respective areas/schools.
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Versus differential fertility between social classes. Has this been studied much? My assumption that Europe/UK has a much stronger negative fertility/social class association than US whites (part of why their PMs don't have kids anymore) but I haven't looked very closely at it.
End of conversation
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