In the US, we spend more than we earn. Yes, we print money. But we also rely on other nations to buy our treasuries. That's declining. The BRICS nations are also moving away from using the US dollar as the world reserve currency. That's also problematic.

Currencies have a life span; usually about 100 years. The FRN (federal reserve note) is past due to fail. For fun, search "death of the dollar." If you search on a conventional search engine, you'll get the answer that it's possible, but not going to happen. If you search yandex, you'll get the hidden results that people don't necessarily want you to see.

Here's a random article that kind of explains it:

disciplinefunds.com/202…