Hear me out. The reason why hot women are crazy is because a woman's embryo screening process only selects the toughest, "crazy" embryos. To be fit for life is to be born irrational; an embryo needs a will to life that transcends rationality. "Rational" embryso who aren't needy or willing enough aren't selected because they aren't willing to tough thru. Hence the craziest / hottest women are the best selectors for craziness.