Collapse-to-zero, vs. a period of high inflation which lets the US reduce the current value of the debt by a large factor? A huge global financial/commerce sys

Collapse-to-zero, vs. a period of high inflation which lets the US reduce the current value of the debt by a large factor? A huge global financial/commerce system needs a "standard" currency. The lack of a good replacement for the dollar (in that capacity) means there are a load of A List players in the game...who have vested interests in pretending that US govt. debt doesn't matter.