My father's brother married my mother's sister; what is the genetic relationship between me and my uncle and aunt's daughter, compared with the children of the sister of my father and uncle? She and I (but not my brother or her sister) and one of her sons share, what some people regard as strange, the ability to detach ourselves, where it it seems to us obviously rational and advantageous to ourselves or others, from the 'normal' emotional reaction to 'bad' events.
I'd also like to remark that clicking on your 'Mollom' link has amazed me that 'statistical computations' can reveal what seem to me (and no doubt countless others) as seemingly abstract ideas of quality. I shall see if the contents of your book are within my grasp.