The real backing all economies across the world need, and look for in the US dollar, is trust. If we were capable of radical trust across every country in the world in tandem, then ideas of who manufactures more, salary, etc, would evaporate and it would be the timeless question of “how do we all survive and thrive together rather than against one another?”. Trust is a limitless resource that still has to be earned and that is why the US has been so successful, unfortunately we are destroying that trust.