Hologram theory says we cannot push string

The velocity equation of money is an estimated outcome after supply and demand queues are stabilized.   That is what Hayek was saying.  Keynes was working backwards because of a fundamental economics error, we do not compete on price; we compete on queue management.  We price things ex post.

The Walmart stock clerk is setting price later, the Walmart checkout manager is doing the heavy lifting currently. The later enables the former with a linear approximation of smooth flow.