Money has lots of properties and you seem to be struggling to understand 2 fundamental ones.
Money is a) fungible, 2 units of the same money are worth the same thing and b) general applicability. You can use money as a medium of exchange most places.
Brent crude futures contracts are fungible at the monthly contract value. I can literally swap 2 same month contracts with no change in count. I can’t buy coffee with them though (or even Brent crude oil without a lot of toil).
MasterCard debt is generally applicable. It’s spendable all over the world, but I can’t trade it for Amex debt without a conversion.
That makes money status contextual but not undefinable. Rubles are not usable where I live. That means they aren’t money here, I have to fx them, but they are money somewhere else, even places where the government says they are not, like Brighton Beach.
Long story short, you must have external validation of value for something to be money.
Money is a) fungible, 2 units of the same money are worth the same thing and b) general applicability. You can use money as a medium of exchange most places.
Brent crude futures contracts are fungible at the monthly contract value. I can literally swap 2 same month contracts with no change in count. I can’t buy coffee with them though (or even Brent crude oil without a lot of toil).
MasterCard debt is generally applicable. It’s spendable all over the world, but I can’t trade it for Amex debt without a conversion.
That makes money status contextual but not undefinable. Rubles are not usable where I live. That means they aren’t money here, I have to fx them, but they are money somewhere else, even places where the government says they are not, like Brighton Beach.
Long story short, you must have external validation of value for something to be money.