“One thing I’ve wondered about for a long time, is if the US printed $19 trillion to cover the national debt, what would be the rate of inflation, compared to now?”
Common misunderstanding.
Inflation does not arise from money printing, but from a lack of confidence in government (which grows daily). The historical massive printing occurred after confidence disappeared and inflation began.
So if the G printed enough cash so that every American had 10 million in his pocket, prices would not rise?