> Since clearly nurture has a very strong effect on IQ It actually hasn't, however clear it might be to you. (Well, it does have on childhood measurements of

> Since clearly nurture has a very strong effect on IQ It actually hasn't, however clear it might be to you. (Well, it does have on childhood measurements of IQ but then it tapers off to practically nothing. Adopted children end up with adult IQs similar to that of their biological parents, not to that of their adopted parents.)