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I recommend studying the financial system of the world, from about the 15th-16th centuries. The conclusion will be unexpected - there were no GLOBAL UNIVERSAL mechanisms of value assessment before the dollar. In monetary form. There was gold. But gold is a specific measure of price and settlement, so the dollar took its place. Yes, the U.S. was smarter, more cunning and more nimble than others. I have already said many times - to replace the dollar, a country must appear on the world stage, which will prove its superiority for decades, will have the largest economy, will be a technological leader, will have the most powerful army and armaments, and many other indicators. I do not see any such contenders even on the horizon. If you know one - let's discuss ?
You don't see and so far there is no country that can compete and threaten the leading position of the United States, that doesn't mean that country will never appear in the future. As I said, it may not happen in our time but in the future it is very difficult to say. You, me or anyone will not be able to know anything in the future.
But there is one immutable rule that nothing can last forever and history will repeat itself at some point. Before the United States came into being, there were five other nations that took turns ruling the world, and before those five empires, we had other empires that ruled the world. Our world is thousands of years old and has gone through many different periods of domination. So the idea that the US will dominate the world forever is just an idea of people who are too crazy about the US and do not want to accept the fact that the world changes and develops.
Source: Internet
Before 1400, before Portugal dominated the world and ushered in the era of the rise of Europe, who dominated the world? And they certainly thought they would never be defeated.