This doesn't seem to work for a dollar bill in my hand though?
This doesn't seem to work for a dollar bill in my hand though?
But yes, products can sometimes become accidental foreign currencies when they satisfy all the key properties, even if they’re not printed by a national bank. Casino chips for example. Disney dollars. Etc.
The moment when bills become money in meaningful sense is when they end up in circulation. And they end up in circulation, when - you guessed it - central bank lends them to banks. The bills are a liability of a central bank, thus they are a note which says that central bank owes that amount to holder, thus they are debt. Yep, I agree, this is confusing and requires very careful thinking.
Pre-1971 it was a claim on a defined amount of precious metals. Historically, precious metals and specifically gold were the sole non-debt currency, because it's a dense store of value whose custody you don't necessarily have to entrust to a 3d person.
> a hundred years ago it would have been a promise to pay you ~1/20 oz of gold.
so 100 years ago, it represented a debt of 1/20 oz of gold.
"This bill is legal tender for all debts"
Makes it pretty clear to me.