It seems to me to be more like a conceptual utopia where within The limits of the artificial environment and dealing with ideal principles, some things can be predicted and others explained retrospectively, but the world in which the theorising takes place has little to do with reality. If the main requirement for something to work is for people to believe in it, then you seem to be in the realms of theology where something requires faith to exist. If you make more than you need to satisfy the present demand, just increase the demand. The money I carry in my wallet is worthless without the faith of the people I want to buy things from. If the person I am trying to deal with belongs to another faith where they believe in different coloured money with different writing on it, then my money is just bits of plastic.
Money is totally subjective, totally conceptual.
It has no objective reality whatsoever, and yet we persist in trying to use manipulations of money to solve our human problems. I have heard one economist refer to it as the tail wagging the dog. The concept is running those who conceived it to the point where they have forgotten that it is just a concept and not reality. We are dealing with an idea here, not a fundamental law of the universe. We can change it any time we want.