This. Regardless of the technicalities (i.e. if it's the fed reserve, etc. who are responsible for printing money), there's nothing stopping the US government p

This. Regardless of the technicalities (i.e. if it's the fed reserve, etc. who are responsible for printing money), there's nothing stopping the US government passing a law allowing them to directly print dollars which are legal tender. As US debt is denominated in USD printing money to pay off debt will always be on the table.