I remember when i was taking intro to macroeconomics my prof mentioned that people can and do send money to the treasury department to pay down the debt. I jus

I remember when i was taking intro to macroeconomics my prof mentioned that people can and do send money to the treasury department to pay down the debt. I just tried looking for it on the treasury dept website and couldn't find anything... anyway... Obviously the debt looks unsustainable now and it does seem like it could never be paid off or even be maintained. But the US debt (relative to GDP) was higher after WW2 and it had a serious debt put in it during the postwar boom (due to a mixture of economic growth and negative real interest rates). So, never say never.