I was just reading about death rates in different societies. Early 21st century western Europe is the safest ever with a rate of 1 homicide in 100,000. 1970s Detroit was particularly bad at 45 per 100,000 per year. In my ongoing thoughts on consciousness and particularly on how it isn't our strongest point, subconscious being quicker at learning pattern, tennis being impossible as a conscious pastime. And of course, once again, we know intuitively far quicker how best to live than all statistics can prove. If politically we need to persuade others to go along with our world view they will want hard evidence so books of statistics help. Though it is clear that peaceful civilisation runs parallel to a loss of faith; the demise of religion running parallel to increased secularism and atheism in western Europe, focusing in holland and Norway, the most atheist and peaceful countries of all time, it doesn't mean that belief in god leads to violence. The two things do, however, reflect more primitive thinking.