I am aware of the current state of IQ research, and I think you overstate some of the conclusions. The biggest is that heritability of IQ is 80%, but that does

I am aware of the current state of IQ research, and I think you overstate some of the conclusions. The biggest is that heritability of IQ is 80%, but that does not mean that it is entirely the consequences of genetics. Parents raise their children, and thus affect their child's environment, both in the womb and early life. That can't be accounted for in DNA.