> I'd like to see some compelling evidence that supports the seemingly prevailing economic theory that the US can issue an unlimited amount of debt… The “US” i

> I'd like to see some compelling evidence that supports the seemingly prevailing economic theory that the US can issue an unlimited amount of debt… The “US” in your comment is more than one entity. There is no single body that can just make more debt unilaterally. In particular the spending is funded by selling Bonds, etc. to investors. Purchasers of those bonds include foreign countries, such as China.