Comment by zormino

3 days ago

I'm curious if that third factor is just geography

Guns Germs and Steel is a great book that explores geographic determinism.

I am trying to find links but can't right now. There are many cross cultural studies they have found the effects of social class systems and family economic advantages persist over centuries. A millennia isn't unbelievable to me.

I imagine it's a mix of both with strong geographic determinism tilting the scales for certain regions.