that we have so many people who are against war and violence is progress but we're far from overcoming our violent tribal ways. good chance humans destroy themselves - atomic bomb is only 70 years old.
"Our bloody nature, it can now be argued in the context of modern biology, is ingrained because group-versus-group competition was a principal driving force that made us what we are. In prehistory, group selection (that is, the competition between tribes instead of between individuals) lifted the hominids that became territorial carnivores to heights of solidarity, to genius, to enterprise?and to fear. Each tribe knew with justification that if it was not armed and ready, its very existence was imperiled."
http://discovermagazine.com/2012/jun...n#.UerIrG2XiZc