I'm still thinking about all this.
Found a series of six articles that discuss things here.

https://monetary-metals.com/the-theo...aper-currency/

The author claims that it's foolish to accept a simple linear relationship between quantity of money(or it's equivalent, interest rates) and price levels.
Instead he claims the situation is non-linear, multivariate, discontinuous, and has some built-in feedback loops.

We are using some big words here, so we must be onto something good!

To me the articles seem to fit well with the Janszen Scenario (the old ka-POOM theory).