Very, very interesting.
Recently I've been working on a research thesis on a Bitcoin capped growth model based on the M1 global aggregate. Where did you find reliable datas on global M2?
Inherent to the fiat system is the expansion of the M2 money supply over time because governments aren‘t going to stop spending. Thus, central banks can’t stop printing and #Bitcoin wont stop mooning.
Here is evening you need to know about the correlation of #Bitcoin and M2 money supply: https://carlbmenger.substack.com/p/global-liquidity-and-bitcoin 
Discussion
was looking for the same this morning, Lyn has a good article about this : https://www.lynalden.com/bitcoin-a-global-liquidity-barometer/
Thanks. It bumped into my email newsletter a few weeks ago, now I'm gonna read it more carefully. 😝
Does anyone have the global M2 historical dataset? Any reliable data source?
#curvefitting
Not much. You can take a look at this, maybe it helps :
https://www.tradingview.com/script/MGmI3Bwu-Global-World-Monetary-Supply-M2-measured-in-USD/
and
Thanks.
I'd like to get the original source of this data for M2, but maybe i'm asking too much. :)