The Land of Opportunity

Tyler Cowen reports on an advance so awesome that I'm prepared to declare 21st century Japan the pinnacle of human culture -- a glasses-cleaning machine that deals with the problem that the post-cleaning drying of the glasses tends to smudge them again. "I've never ever had my glasses so clean before," reports Tyler.

And yet, this kind of miracle is never going to be properly accounted for in purchase power parity calculations.