It’s almost certainly a joke but bottlecaps in a post civilization society would make a pretty decent currency, more so than gold.
They’re light, easy to carry, hard to reproduce and therefore scarce. They’re also useless for anything else. So if you happened to have a lot of caps laying around they might find their way to becoming a currency.
Gold is heavy, requires a lot of work to make it useful as a standard, and has other practical uses. Caps are actually better.
breakcore@lemmy.world 1 day ago
I think they’re referencing the game Fallout where bottlecaps are used as currency