We see the decline over millenia, not decades.
Really? You can reliably measure the amount of violence going on a few thousand years ago?
Besides, I completely agree that violence is on a general historical downward trend. There will be less violence in socialism than in capitalism, and after we reach communism there will be very little violence at all.
"When I give food to the poor, they call me a saint. When I ask why the poor have no food, they call me a communist."
- Dom Helder Camara, Brazilian archbishop
"Definition of a conservative: a person who believes that nothing should be done for the first time." - mikelepore