And who's going to hold the US responsible for repayment? Way I see it, US has the power to just tell any creditor that they won't be repaying, whether through structuring it as some economic package or just straight up saying go suck it. The former's been done before (1933); maybe eventually we'll see the latter, if a nation has the balls to ask. And talking about it is pretty pointless, like talking about how wet y…
Sure, and what happens then? Nobody buys new gov bonds; non-gov debt rating stops making sense. For the financial system it's a shock so huge it's better to only do this if no other solution is possible, at which point the gov is bankrupt anyway.