A
prediction is a tricky business in biology. As we see with all the excited
headlines about the genetics of intelligence, when you get right down
to it it’s awfully difficult to know how life will turn out for any of us. The
interplay of genes, environment, and chance is a complex dance, and we
live in an unpredictable world full of unpredictable people. Guessing what’s
coming, even a few steps ahead, is a challenge.
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