Money as flow…
Money is stock, but its effectiveness is a consequence of its attributes as a flow variable. The more it flows across the economic/financial system, the greater its value as stock.
A country’s wealth is significantly a consequence of how well its systems enable the flow of money from those who don’t know what to do with the excess of it to those who can do something with a very little of it.
Ideas and money. The thing is to always think of them as flow. Not stock.