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Extract:
Intriguingly, the heritability of intelligence has probably been increasing in recent decades. The more we make sure everybody gets sufficient nutrition and education, the less these factors will determine differences in outcome, so the more differences in genes will determine the differences that remain. The fairer society becomes, the higher heritability will be.
The new results are just right for proving that education is not futile, but nor is it a life sentence. And that the genes that matter are so many and so slight in their impact that seeking them out for your children through genetic engineering will never be practical anyway. Now, isn't that a happy result?
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