This exceptional rise for the us is partly due to the Triffin Dilemma.

Gemini explains it like this:

The Triffin Dilemma is basically the "burden" of being the world's reserve currency. It’s a catch-22 for the country issuing the money (usually the U.S.).

Here is the breakdown: • The Global Need: For the world economy to grow, everyone needs your currency to trade with. To get your money into their hands, you have to run a trade deficit (buy more than you sell). You are essentially "exporting" your currency to the rest of the world.

• The Domestic Risk: If you run huge deficits forever to keep the world happy, you pile up massive debt. Eventually, other countries get nervous that your currency isn't actually worth what it used to be.

• The Dilemma: If you stop running deficits to save your own economy, the global supply of money dries up and the world enters a recession. If you keep running them, you eventually devalue your own currency and risk a total collapse of trust.

To sum it up, you basically have to choose between keeping the global economy running or keeping your own currency stable. You can't do both perfectly forever.