Global diversification allows you to diversify across a wide range of political orders and ways of living. The US is just one of many countries, and one of many political systems and ways of being as a people. So far, the approach we have in the US — focused on property rights and reasonable levels of liberty with decentralized governance, rule of law, and the ability to form contracts — has proven an excellent way to build wealth in society. That doesn’t mean the future will be the same as the past - it’s very conceivable that other societies and other ways of governing may prove better-suited to wealth creation in the 21st century. We simply don’t know, because we don’t know the future. That’s why robust diversification matters so much.