While I agree that the Stock Markets reflects the expansion of the money supply, since it has become the reflection of CASH.
Inflation as the result of increased economic activity is a real thing aside from monetary policy or the printing of money.
And it’s not Keynesian.
It’s labor and the infinite creativity of people to make something of value out of what others may perceive as having no value.
It is not a Zero-sum game.
Zero-sum is Keynes.
Inflation is increaase in the money supply. Only Period. Anything else has to carry a modifier like “price inflation.” Increase in economic activity is expansion, not inflation. It is not inflationary. If the money supply increases at a greater rate than the increase in goods and services which constitutes an expansion then there is inflation. By using the term “inflation”
to mean just anything that comes to mind it loses all meaning and there can be no sensible discussion of economic activity because everyone in the discussion will have a different meaning for the word. The only legitimate use of “inflation” is the term as used by the classical economists, Friedman, Hazlitt, Von Mises, etc. Other uses of the word tend to be political uses and do not reflect actual economic speech.