Not an economist, but IMO this might be the most effective emergency monetary policy ever enacted. Massive amounts of money printed with very little effect on average things people need to pay for. The inflation occurred, but it occurred in things like... Bitcoin.

Alternatively, if Bitcoin was our currency, we'd be in a deep depression because it'd impossible to increase the money supply and people would hoard. The government would have had to confiscate Bitcoin, like was done with gold in the 30s.

I have been skeptical of the MMT people but now wonder if they might be right. One way or the other, the policy will be taught in economics books.