I think the most interesting part of Guns, Germs and Steel was the assertion that violence is not an aberrant condition for humans. In other words, violence is

I think the most interesting part of Guns, Germs and Steel was the assertion that violence is not an aberrant condition for humans. In other words, violence is not a disease, it's standard operating procedure. However, it's normal only under certain conditions. So to prevent violence, you need to work on preventing those conditions.