Well, for example, "about 15% of people in prestate eras died violently, compared to about 3% of the citizens of the earliest states". http://www.wsj.com/artic

Well, for example, "about 15% of people in prestate eras died violently, compared to about 3% of the citizens of the earliest states". http://www.wsj.com/articles/SB10001424053111904106704576583203589408180 http://www.wsj.com/articles/SB100014240531119041067045765832... As far as predicting the future goes, I can't.