Yeah, part of my argument is that that 250 year number is heavily skewed by past civilizations where life was much worse and so people were much more apt to jus

Yeah, part of my argument is that that 250 year number is heavily skewed by past civilizations where life was much worse and so people were much more apt to just tear everything apart. I don't think it holds for countries at current First World standards of living. As we improve living standards further the number of years regimes will last for will stretch out even more. I'm not too crazy about this as an anarchist, mind you, I think there are better stable equilibria we could get to. Don't let the perfect be the enemy of the good, I guess.