I'm not misreading you. You're saying that spending constrains future cash flow. This is simply false. The US won't run out of dollars, ever. Japan won't run ou

I'm not misreading you. You're saying that spending constrains future cash flow. This is simply false. The US won't run out of dollars, ever. Japan won't run out of ten, ever. They have a 0% risk that they won't be able to pay back their debts because they print the currency. The only risk is inflation.