Earlier quoted context omitted.
Do you think the US government could cover every single cent if all the depositors wanted their money out now? Not even physical cash, just a transfer to an overseas account. The money simply isn't there and the scales are enormous. US banks only can pay back 3-10% of cash deposits. The FDIC only has enough to cover a tiny proportion of bank liabilities. It seems very disingenuous for people in this thread to say "we…
The USA gov can just print the money to pay off the backed cash. Everyone gets their money. It may not be worth much if everyone actually demanded they could hold the dollar amount of their accounts in their hands in paper money - indeed, I imagine, you'd cause severe privations on the government funds in order to produce the money.
If literally nobody (hypothetically) is willing to own actual land, factories, and so on, then it's the tangible assets that are worthless, not the money. It would be the ultimate in deflation.