I found precisely two points of interest in the book, both pretty tangential to the main thrust of the argument. First, of interest only to those who also know her, is that an old family friend is mentioned in passing on the development of children's minds. Second, of more general interest, is the observation that all cultures tend to design ornamental gardens with unconscious reference to the primeval African savannah - lawns and flowerbeds interrupted by carefully placed features. Rather a pleasing thought! This observation is not Pinker's own, but he does give pretty full citations for it which the interested reader can follow up.
I hear that Pinker's other books are better, so shall continue to look out for them though without particular enthusiasm.