

I agree on how yield curves work. My point is that issuing bonds are not necessary to begin with. It is completly voluntary on the part of Congress. It is purely a political choice that the Treasury must issue bonds approximately equal in amout to the budget deficit. The bonds are not used for financing the government, as it is able to issue the currency it spends, but rather as a drain on reserves in the baking system to help the Fed reach its interest rate target.
The “debt” of a monetarily sovereign state is really nothing like the debt of a household or business. The US could pay off all its debt in an instant by an act of Congress. Not saying that would be a good thing, but there are no financial constraints stopping Congress from doing that; only political ones.