Earlier quoted context omitted.
Thanks for the pointer to the book, quite interesting so far. The author talks of psychopathy as an "adaptation" and not a "brokenness" in an individual ... but the adaptation so far mentioned is only in the sense of "the relatively small number of psychopaths is adapted to prey on other humans". I suppose that having too many psychopaths would render human trust very frail and would make a society prone to failure (…
I am not qualified to speak authoritatively on this matter, but here's how I see it: Psychopaths are mutant parasites. They lack certain abilities that enable them to integrate well into human groups and would not survive well in the paleolithic. With increasing population densities in the neolithic and in the modern age, it became possible for psychopaths to survive and pass on their genes. I think that psychopaths…
The family raise a child who is a psychopath. The child then does what psychopaths do, and the family are in an abusive relationship with the child.
The child can be charming to outsiders etc and can find partners to procreate with.
Can't spot why they would not survive well in the paleolithic.