Rick Perry - a matter of optics?

A few months ago I pointed out that there's strong circumstantial evidence that Rick Perry is not very smart. Or, he's very lazy. While George W. Bush had a reputation as dull, his standardized test scores indicated that he wasn't without any raw material. This makes sense in light of the fact that his father is reputedly bright, having graduated from Yale with an economics degree in three years. Perry in contrast may be the real deal in terms of a dumb authentic Texas politician. All that being said, one reader pointed out that Perry did have the intellect to become an officer in the Air Force. Since the military uses standardized tests a fair amount you can put a floor on his intelligence. So I let the matter rest, especially since Perry dropped a great deal in the polls. But all this came back to mind over the past ...