You may well be right, Stanley. I would rephrase your analysis as saying that the heritability quotient abstracts too far to be meaningful. Would that be apt? What gives me pause is your particular example of bipolar. In classic bipolar, we generally only see that develop in adulthood–the idea that kids can be bipolar was largely the work of Joseph Biederman, right, who has been pretty well disgraced? So I’m not sure how the feedback loop you offer would apply to early childhood.