Atrios employs his usual salty language to underscore that if you point out to people who are pushing the idea that we can return to prosperity by cutting spending (such as Paul Ryan) that that's a stupid scheme, they'll look at you exactly the same way they did ten years ago when you told them that invading Iraq was a stupid idea.
Nobel-prize-winning economist Paul Krugman has been saying pretty much the same thing for a while now. Indeed, the notion that we can austerity our way back to a dynamic, growing economy has been acknowledged by people in the know as pure idiocy since 1932 -- that's 80 years.
There's one small problem with the usual, Keynesian approaches this time though. Do we really want to return to a dynamic, growing economy? Or should we suck it up, embrace poverty, and start truly living differently than we have been? It's only what we're going to have to do in the long run anyway, if we're planning to live on this planet.