Senator
Thinks s/he gets paid by the post
It all depends on other factors. A long-run sustainable government debt load is generally viewed this way . . .
Sustainable Debt to GDP = (primary deficit)/(nominal growth rate of GDP - nominal interest rate on government debt)
Tell me what all the other numbers are and I can solve for X.
But even without filling in all of the blanks, you can gather from the formula that interest rate increases driven by inflation have zero impact on sustainable debt. So why interest rates rise is more important than whether interest rates rise.
I think some of the other numbers need to be how much the other world currencies are being printed. If other countries print money faster than the USA, we are still good.