This is more a discussion of semantics than about the amount itself. The way I read the statistics is that the current debt is $28T of money that is already spent while the quoted debt of $146T is the amount of money needed to be spent to fill full current promises and expenses . It's interesting that since the USA got off the gold standard in 1971[1], and thereby all countries that had a currency backed by dollars,…
this is a good point. Everybody keep saying that US had a small inflation in the last 2 decades. Yes, prices of eggs/milk maybe didn't go up to0 much. But what about prices of child care, education, housing, health care, retirement. Yes all these have many factors behind their cost rise, but money printing just can't be ignored here.
If both of these happen to balance, prices appear to stay the same.
Presumably you'd only get a true number out of something (a) with a fixed amount in circulation, (b) internationally traded, & (c) universally valued. Even precious metals are subject to production costs and industrial consumption.