[dataflow]

Seems like it was used earlier than 2016? https://en.wikipedia.org/wiki/Helicopter_money

> The name "helicopter money" was first coined by Milton Friedman in 1969, when he wrote a parable of dropping money from a helicopter to illustrate the effects of monetary expansion. The concept was revived by economists as a monetary policy proposal in the early 2000s following Japan's Lost Decade. In November 2002, Ben Bernanke, then Federal Reserve Board governor, and later chairman suggested that helicopter money could always be used to prevent deflation.