Cognitive evolution and European history. Modern population genetics shows that enormous genetic replacement occurred in Neolithic Europe which as well as changing the religions in Europe surely had an effect on heritable traits like intelligence and behaviour. I am speaking to Dr Edward Dutton aka The Jolly heretic about what the implications of these genetic shifts are in terms of the cognitive evolution of Europeans - can cognitive archeogenetics help us to understand the massive success of the Indo-European cultures over the Bronze Age compared with their Neolithic predecessors? Were the Indo-Europeans really clever chaps? Watch and find out!