Not sure, it is just a correlation not an iron rule and definitely not the only influence. The shrinking here of m2 is much much smaller than the previous increase was as well.
Correlation of what, to what, and what's the R-value? Across what time frame?
https://en.wikipedia.org/wiki/Correlation
These words normally have _meaning_ ya know. They're not just things you toss out in a meaningless online discussion.
And if the amount of money available goes down for 18 months... then what?
https://fred.stlouisfed.org/series/WM2NS
An "inflation hedge" goes up when inflation is up, and down when inflation is down. But in practice, BTC is closer to down when inflation is up, and up when inflation is down.