[MtnClimber]

With Central Bank Digital Currency you could be required to get approval for every purchase.

[William of Barsoom]

Getting some “junk silver” might be useful as a non-monitored medium of exchange for small items — like a loaf of bread. (Nobody will want to break your $2000 gold coin.)

I suspect “barter” might make a comeback one day soon.

[Grampa Dave]

“With Central Bank Digital Currency you could be required to get approval for every purchase.”

That has been the rule forever. If you are delinquent in paying your credit card, it will not be accepted anywhere.