This is similar to what Japan did, with their stimulus over 20 years ago, and they still are fighting deflationary pressures today.
Then next, deflation grips continental Europe. They tired similar strategies like Japan to combat it. One irony of the 2008 crash, was the sucking out of credit from the system created deflationary pressure, and all Helicopter Ben did was what the Japanese used to do, which Helicopter Ben at that time criticized as being useless.
What goes around, comes around, as the Anglos like to say.
What I conclude for the moment, is two things,
1. Not convinced that inflation will be a feature for the United States in the next few years. Need to see more evidence, which has to come when the economy normalizes after the pandemic shock.
2. If there is inflation in the United States, it could be only them. There is no reason to believe that Japan and German beat their deflation problems. China could see deflation.
The big wild card is the currency. The USD could go down.
But, will the Europeans and Chinese decide they will not let the United States get away with it and depreciate their currencies as well? That is a big unknown.
Buy a little bit of everything, and hope for the best. That is what I try to do with my merge savings!