Btw, I'm just going to interject and say that this conversation has been done at Hacker News many times and it never really goes anywhere. I'm going to wait five years until more genome wide association studies are done before I try to enter this argument again. It seems obvious to me that there are some genetic differences in intelligence, but it's a touchy enough subject that I don't feel it's worth entering an argument based on individual interpretations of incomplete evidence.