<p>In response to dontno, I agree that intelligence has a large genetic component. I find it hard to believe that the huge discrepancies between blacks and whites on conventional intelligence indicators even when controlling for socioeconomic status can be explained away by culture. The same goes for the vastly disproportionate success of certain groups like Ashkenazi Jews. Just look at your surroundings and use your logic and it’l all be self evident.</p>