[littletimmy]

> Actually, the Wikipedia page on "fiat money" (if that's what you're referring to) says: "Fiat money originated in 11th century China" [1].

I'm referring to ledgers of credit. They originated in Mesopotamia, thousands of years ago. Check out the book "Debt" by David Graeber.

> That's if there is only one person on that island. If more people live on the island, they might start trading services and use some some improvised currency, e.g., coconuts or seashells. In this case, you have a society and money, but not necessarily a government.

See, that's completely untrue. What is actually going to happen is that multiple people on that society are going to bludgeon each other to death once there are enough people to constitute a society.