Having had a particularly bad morning with my 8 year old daughter who, despite being the most intelligent, beautiful and lovable child in the history of humanity, does have a tendency to have some fairly unbearable moments, I emailed my favourite evolutionary psychologist Satoshi Kanazawa. I asked him why children should have evolved the fairly universal parental-insanity inducing behaviours of incessant talking about absolutely nothing, arguing with everything (for my daughter this morning…