[Arnt]

There's a crucial difference: in the economy we have, each party manages its own money, no party manages the overall money supply. That's why the overall money supply (M2 etc) has to be estimated: there isn't a managing authority that could report correct numbers.

To my mind that's good, it allows each of us the right to estimate future value, and the money supply is effectively a sum of our estimates.

I think you write "the money needs" because you want that to be the case, Just another sentence where "x needs" (third person) means "I want" (first person). Unless you can describe the need?