Super interesting thought. Seems like it would make a good book. Something like Sapiens, looking through history but with a focus on why nation states arose and

Super interesting thought. Seems like it would make a good book. Something like Sapiens, looking through history but with a focus on why nation states arose and fell, and then extrapolating. The EU is a great modern case study. The topic of [Federation](https://en.wikipedia.org/wiki/Federation https://en.wikipedia.org/wiki/Federation) is a good starting point to, because to get to world like that would involve several steps of federation, or some all-encompassing treaties.