Responding to your edit: Perhaps in a theoretical sense they aren’t different, they are fiat money which is basically a ledger of value (which governments mani

Responding to your edit: Perhaps in a theoretical sense they aren’t different, they are fiat money which is basically a ledger of value (which governments manipulate). But behind the dollar is the largest economy in the world and the largest army by a long shot, and a lot of motivation to keep the dollar as the “biggest” currency in the world.