For adults only: Can you find a flaw in this logic?

[Oldwhiteguy2earth]

Too long - go to community college if you want to teach a class. Your premises are flawed because eventually the buyers of debt will lose faith in the ability of the US to ever repay it's debt and even it's ability to even pay the interest. At that point, hard assets will be king for many decades or centuries. The national interest rate is being held artifically low by running the federal printing presses at full speed (actually by creating debt out of thin air). The interest rate will rise eventually and when it goes to 5% which is the historical norm, the entire US discretionary budget will be consumed by interest on the debt.