His theory, in reality, would only work if all major governments would cooperate (in the case the central bank in question is the FED).
Governments don`t need to work together
STEP 1) FED prints more money (like they do daily)
STEP 2) FED BUYS ALL THE SUPPLY OF BITCOIN (and my fucking peaches and cherries that I back with my time, lifespan and work FOR FREE!)