I don’t think we were much of a dominant superpower until after World War 2. Lots of Europe was decimated but our infrastructure wasn’t and we also won the Cold

I don’t think we were much of a dominant superpower until after World War 2. Lots of Europe was decimated but our infrastructure wasn’t and we also won the Cold War . We had large factories created also. If some other superpower does come around you could just try to find a foreign index fund and adjust your investments.