I was including the Federal Reserve Board in "economists". Forgive me if that was a mistake.

Let me be more concrete: I suspect that the Obama stimulus plan won't accomplish anything positive, not because of any particular flaw I could name, but because the models they are using to organize their understanding of macroeconomics are just wrong - somehow or other.

The amount of chaos here seems so great - so many things going differently than predicted, so many plans failing to have their intended constructive effect - that I suspect a chaotic inversion: it's not chaos, we're just stupid.