You know, I don't agree with you much any more. But you nailed it in that post.

The only real economic (I don't care about the politics of any of it) solution for what we face can be summed up in one word: time. Lots and lots of time. The single, most important thing we can do is to avoid turning what's likely gonna be a problem the lasts another 5-10 years into a problem that lasts another 15-20 years.

In that vein (and again, I'm ignoring politics altogether), here is the problem with Keynesian solutions. We're a debtor country. Every $ of additional spending is an additional $ of debt creation. The marginal utility of each new dolar of debt has been negative for a couple years now. The multiplier effect is negative.

Keynesians aren't the problem.