[eli_gottlieb]

Well, that's roughly how much of the population you need to mount an ultimately successful revolutionary movement. And we're 1/3 of the way there already.

Also, if I had to venture a guess for why things have been improving, it's that modern economies rely on very fine, highly-skilled divisions of labor. If you're a marketing manager, you probably don't really understand how software goes together. This makes it very difficult to point a gun at a programmer and force them to work.

This means that in order to climb the ladder of value-added production, you need to keep your social organization nonviolent, and possibly even increasingly peaceful. You need everyone to cooperate, and when they cease to do so, even nonviolently, you start losing all that value you can't extract at gunpoint.