alt Hacker NewsDoomsday scenario is a self-reinforcing feedback loop of:
1) economy tanks, people earn less disposable income or become unemployed
2) consumers spending less tanks the economy even more
We have historical precedent for this in the great depression, and the government going hands-off back then made the problem almost certainly much worse.
You could even make a pretty credible argument that the Nazis only got into power thanks to this, so there's your doomsday scenario.
I don't think this characterizes the situation accurately. The economy doesn't cease to exist, it moves out of the existing financial system. Able-bodied workers, supplies, equipment, knowledge all still exist, they're just awaiting orders. You have your choice of how to spur productivity with the extant resources, including direct investment and propaganda. Many people credit WWII for the recovery, but it was actually just those two things, with the war as the excuse. But you can do it without a war, as with the Japanese economic miracle: some amount of austerity, everyone works towards a common goal, the government backstops the effort. Bonus: no golden parahute overhead.
I think we screwed up after 2008 and I would like to see us get it right this time. The government absolutely should be hands-on, but the focus should be on raw productivity and public well-being, not making certain that certain firms survive the bloodbath.
You know what's a great economic stimulus? You now own the house you owe a mortgage on, clear and free. "But that would bankrupt the mortgage-holding bank!" Okay.