If intelligence and success are truly largely determined by genetics: - How will our culture ever allow us to even admit the possibility? - If it's true and t

If intelligence and success are truly largely determined by genetics: - How will our culture ever allow us to even admit the possibility? - If it's true and the truth becomes widely accepted, how do we prevent problems ranging from basic discrimination, to a push for eugenics policies, to full-on Nazi "kill all the inferior races in our glorious society"? The answer since WW2 has been basically "that's not the way it works" -- but then that means we suppress evidence that points in that direction, and so blind ourselves to the possibility that it is actually the way it works. If what the author's saying is the truth, are we better off being willfully blind to it, and avoiding the grave social problems such a truth could potentially cause if widely accepted? Or should we pursue the evidence wherever it leads? We like to think that our modern scientific society is far more ethically advanced than the primitive, superstitious idiots who put Galileo on trial -- but it seems like this issue may be an example of the same forces at work, and it seems like a lot of the people might come down on the side of suppressing unfavorable evidence. For the record, I don't really support the author's point of view. I'm just playing devil's advocate by asking yourself: If the author's right, what evidence would he need to present in order to convince you?