Not long ago Stephen Pinker, who appeared on Desert Island Disks this week, published a book to great acclaim called The Better Angels of Our Nature . In this he argued that violent deaths had steadily been decreasing over the last few centuries. His message overall was that things are getting better, and this was a message that has pleased many people, not least those who think that the socio-economic system in which we currently live is as good as it gets.
Pinker presents in a paradoxical way. He talks and writes like a typical left-leaning liberal but many of his ideas have a somewhat reactionary tinge. In particular his enchantment with the idea that our personalities are primarily formed by our genes has been taken to suggest, as argued by Judy Rich-Harris  who he greatly admires, that parents make very little difference to how a child turns out. His book the Blank Slate  similarly took huge swipes at the idea that our personalities might be the product of our experiences, and I think in that he set up various ‘straw men’ to easily knock down. His argument was in too many ways selective, ignoring for example the extraordinary research from epigenetics showing how genes and environment interact powerfully and that genes have different effects depending on the environment that triggers them. More importantly he ignored the massive evidence about the powerful effect of early experiences on programming our brains and hormonal systems , particularly the effects of stress, anxiety, trauma and neglect, and he also ignored the extraordinary body of research from attachment theory about the impact of early experiences.