Hello; I for one am concerned about not just future debt but also more about the inflation that will result from the covid19 stimulus. The future debt will not fall onto me so much as I am 73 years old and will not have to deal with it long term. The inflation will hit me and the rest of us hard, especially after the lockdowns end at some future time.worries about "future debt" instead of addressing current economic disasters.. even though the last package clearly worked...
Adding three or more trillion dollars to the USA's national debt will dilute the value of the dollar. It partly works like this. We as a country have been borrowing close to half of the money spent each year and with the stimulus my guess is it will be at or more than half. That might be OK except for two things I know of. One is we never pay any of the principal off. We only pay the interest that come due on the debt in the form of paying out to the holders of mature treasury notes. Not a terrible chore with near zero interest rates at this time, but interest rates will have to rise eventually. That may mean and likely will mean at some point in the future most of the money spent by the federal government will have to go to paying that interest with less and less available for other expenses. That can mean various programs will have to be cut or as will most likely happen they will print more money and the inflation spiral grows. If a government ever stops paying the interest then people will stop investing in the treasury notes.
The other thing is, by my understanding, when this new debt from the first covid19 stimulus goes to the treasury auctions not all of will be bought by people like you and me or by other countries. In fact it is my understanding for some years now the Federal government has been buying a huge amount of the notes itself. This means in some effect some large portion of those trillions of dollars is just in a sense paper.
I get the concepts of finance at government levels are more complex than this and that I am not a qualified finance person. This is just my take with a point sort of being that as bad as things seem now if reckless spending happens things could be much worse later. Just saying and not predicting.