What I am about to say will be inflamatory on many levels, but I don't know how to sugar-coat it. Admittedly, it is simply my opinion, and I have little factual basis for it (though I think I have support for many individual points). It simply make sense to me.
1) Technology and new business models (in short, new ways of doing things) is what creates growth.
2) Open environmetns, with open minds are more conducive to new ways of doing things.
3) George Bush's administration created a very closed, and closed-minded environment in the U.S.
Our economy is barely growing, because we are all essentially doing things in the same ways (technologically, and economically speaking) now as we were in 2000 when Bush took office, despite that fact that we were hitting limits, getting diminishing returns, and otherwise in sore need of innovation.
Innovation in itself causes problems, but those are the problems and corrections of a growing economy. What we have here is near stagnation.