I recall a generalization that by gender, there are more male geniuses and more male idiots, and women's brains have more redundancy and can handle strokes or brain damage better, the conclusion being that "nature" is more willing to experiment on males, and when it works, it creates geniuses, and when it fails, it leaves more make victims, boys and men who will not be able to "compete" for reproductive success, while living in a world that can give them great power of destruction - like if they idolize guns or weapons of war.,(reply>), One of the "consequences" of the "more male genius" outcome is more males than females will rise to the top of varied fields, and this will be PERCEIVED as sexist, that society PREFERS more men to rise, while that may also be true, but insufficient to explain outcomes. Some might conclude NEARLY ALL top-researchers should be male if their intelligence is say greater in the top 2% of the male bell curves exceed the top 0.1% of female bell curves. Others might argue "pure male raw intelligence" is unbalanced, and including more women who may on average have lower intelligence, but can have ways of seeing that compliment the men.