For completeness, there's also been ideas thrown around recently about removing or discouraging cash.
In that event, a lot of the conventional economic wisdom discussed above gets thrown away as it removes the ~0% floor on interest rates and could ban hoarding of money outside of the financial system + incentivise spending with potentially deeply negative interest rates. Interesting stuff, but possibly most sources about it online are quite alarmist.
Why the real agenda isn’t what they say it is and how it will affect us all.
medium.com