Earlier quoted context omitted.
Please explain how literally directly increasing the M1 money supply doesn't cause inflation. Everyone got money for free. Things that are free, tend to have less value.
08-20 money supply tripled but no inflation.
You can print money endlessly, stuffing it into people's bank accounts limitlessly, and as long as they don't spend it you won't see inflation. But once they do start to spend it, the capacity to spend is magnified. Stocks, real estate, etc. provided essentially that bank account... until now.