> sum total of money available is equal to the sum total of value in the world. This part is not completely accurate when you consider that money changes hands

> sum total of money available is equal to the sum total of value in the world. This part is not completely accurate when you consider that money changes hands over time as value is created. (Multipliers) If the someone produces 1 widget per day (different person each day), and someone else consumes 1 widget per day (and becomes the producer the next day), 1 widget-dollar is needed forever to help move the widgets. If the pattern of production and consumption is more complicated, we need more dollars (debt) to keep track. The sum total of money needs to be something like the sum total of all current unsettled debt, and it needs to be less than the amount of future production of the debtors, in each's share (or else they will default). It gets more complicated from there.