The AI boom might be keeping the US dollar hegemony afloat rather than the other way around.

I think dollar finance basically works by creating money pits where the wealthy can pour their money in a way that is largely disconnected from the productive economy, therefore avoiding uncontrolled inflation. Then those people are rewarded with new money for which new pits need to be created.

The stock market sort of works like that too. After the IPO you generally are buying stocks from other investors, the money doesn’t go to the company who’s stocks you are buying, it doesn’t go towards buying new machines or building more factories.