1. The problem with GPS is that it may tell you where to turn, but not why you're turning. They're meaningless directions followed by rote and impossible to internalize. As a spatially-oriented person who operates entirely by placing myself in a mental map, I would feel helpless outsourcing my cognitive functions this way.
2. "Mr Obama seems to me to be precisely the sort of moderate, centrist, I-understand-your-perspective type of politician that conservatives claim to be looking for; all of the energy torquing him into a figure of racial polarisation has come from the conservatives who claim to be angered by that polarisation."