being that the idea of money, boiled down, is a shared collective delusion..fiat money isn't fake, it is still an idea who's time is still very much real for many people.
fiat money, however, is unnatural. unnatural in the sense that it doesn't have a direct tie to natural power projection. the tie is a political one, arbitrary to some degree.
What's happened now, is the superior form of power projection on fiat money is a world ender.