Economist and economic historian Robert Higgs theorizes that regime uncertainty — the widespread inability to form confident expectations about future private property rights in all of their dimensions — is a more evolved iteration of the Keynesian “animal spirits.” However, fear of current and future Obama administration policies does not fit neatly into Keynesian computer models (which haven’t worked well) or progressive ideology (ditto) and thus must be dismissed as a cause of economic malaise by Keynesian progressives. That’s science!