[justupvoting]

I think my use of the word 'credit' was a distraction here and that's my bad, but folks absolutely walked around with valuable metals to use as a medium of exchange when moving other valuables was very difficult or impossible. And there were scams then, same as there are scams now. I don't want to type out of the whole history of money as I understand it (Jack Weatherford's book was pretty good), but suffice it to say that history repeats because humans-as-behavior-machines are repetitive.

This article includes some interesting tidbits: https://www.newyorker.com/magazine/2019/08/05/the-invention-...