Parenting does not override biology. That's what joyce benison already believes. So why do the magic wand if she already knows the answer? Because we don't just do experiments to learn the truth. We also do experiments to persuade others of the truth, in this case, to persuade the legions of neurotic north american parents who believe that it is their own practice and attitudes that shape their children's fundamental nature. Just think, if bennison's right, nature triumphs over nurture. But from your purposes, it needs to run for how many years to get a a persuasive result? Well, i mean, obviously hormonts come on line, and you'd have