Star Trek episode where Kirk was present, but no one could touch/see/ him…..and analogously economically we can’t and don’t actually have the money available to spend.
The economy/commerce itself is a system entirely embedded in the flow of time and hence, due to the elongation of the productive/economic process and also the fact of the flow of the unequal ratio of costs/prices and individual incomes simultaneously created, there is thus imposed a continual time lag/out of phaseness in each present moment of time within which that unequal ratio of costs/prices and individual incomes is the economic and monetary reality, a continual disequilibrium. Keynesian stimulus palliates this condition, but can never resolve it because such stimulus enters into the economy and therefore re-initiates that time lag/out of phaseness. Only a direct gift can resolve it. Monetary grace the free and costless, non-price increasing, actually price deflationary gift in the forms of a universal dividend and a rebated back to the merchants who give it, macro-economic discount to retail prices.