The swelling wave of argument and discussion around "helicopter money" has two origins:
First, as Harvard's Robert Barro says: there has been no recovery since 2010.
The unemployment rate here in the U.S. has come down, yes. But the unemployment rate has come down primarily because people who were unemployed have given up and dropped out of the labor force. Shrinkage in the share of people unemployed has been a distinctly secondary factor. Moreover, the small increase in the share of people with jobs has been neutralized, as far as its effects on how prosperous we are, by much slower productivity growth since 2010 than America had previously seen, had good reason to anticipate, and deserves.
The only bright spot is a relative one: things in other rich countries are even worse.