If the government wants to default on its debts it can generally just do so. People lend money to the government because they choose to trust it for various rea

If the government wants to default on its debts it can generally just do so. People lend money to the government because they choose to trust it for various reasons. If the government decided to say tomorrow that $100 bills with serial numbers AB1234567000-AB12334567999 were counterfeit and should not be accepted, what do you think would stop them?