Economic Double-Think

There's kind of a weird double-think involved in arguments that the slump should be allowed to follow its natural course. It's true that classical economics says that we should let market forces do their work; but classical economics also says that severe recessions can't happen. This idea that we must not intervene is based on a worldview that is refuted by the very fact that the economy is in the mess it's in.
--Paul Krugman