If we're modeling the flow of value (in the more abstract), then holders of most currencies on the planet have real value constantly flowing away from them... b

If we're modeling the flow of value (in the more abstract), then holders of most currencies on the planet have real value constantly flowing away from them... by virtue of inflation. Or in a larger macro sense, positive central bank interest rates create a requirement for everyone to acquire some debt in order to counterbalance the drag.