[tomrod]

We already do this between states in the US and in the EU, so clearly it can work in practice. We don't normally look at it that way, but that is precisely how we structured things.

[yubblegum]

Someone moving from Virginia to California is moving within the same socio-political order and culture.

[tomrod]

Correct! It wasn't always that way, but isn't it wonderful that our laws and governance allowed such a flourishing!