This is a natural consequence of: - major oceans on two sides, very similar country on one side, and only one border with a truly different country - 25% of t

This is a natural consequence of: - major oceans on two sides, very similar country on one side, and only one border with a truly different country - 25% of the world's economy - very easy to travel, work, and do business internally across the US - some cultural and lots of climate diversity inside the US All of which means you can live a very full and happy life without ever leaving the States or even thinking about what happens outside of it.