There's about $2trn in banknotes https://www.uscurrency.gov/life-cycle/data/circulation and from my earlier reading of the FDIC statements there's about $24trn in total US bank deposits. So if you want to have everybody keeping their own individually serialled banknotes that's a non-starter.
You can keep it at the central bank, whether that's "postal banking" or "the deposit window" or "a CBDC", but that seems to be politically unpopular for incomprehensible reasons.
There's about $2trn in banknotes https://www.uscurrency.gov/life-cycle/data/circulation and from my earlier reading of the FDIC statements there's about $24trn in total US bank deposits. So if you want to have everybody keeping their own individually serialled banknotes that's a non-starter.
You can keep it at the central bank, whether that's "postal banking" or "the deposit window" or "a CBDC", but that seems to be politically unpopular for incomprehensible reasons.