And in any case, he doesn't even know what money really is.
An analogy with electronics;
Money is not an electron, money is the flow of electrons. Money is a store of value that is valuable only when it is used. Which is why fossilized money in bank accounts does not help the economy one iota.
Yes, banks invest it, but they would be able to do just fine if the money were flowing, because the same amount aggregate would likely be on deposit at any time. Money basically moves from one bank to another. The amount of cash is very small. They would still invest it AND it would be in circulation AND they would get fees for that, too!
And this is why inflation below a certain level never destroyed a nation; When money is flowing, all that matters to anybody is that they move it on before it loses significant value.
And this is why stimulus, if sufficiently large, can end a recession. Money flows. People get employed and buy things and stores replace stock and...
If stimulus is insufficiently large, however, it won't help much. We've seen that.
Make money flow. When money stops flowing it stops being money.