This is the bi-weekly visible open thread. There are hidden threads every few days here. Post about anything you want, ask random questions, whatever. Also:
1. Comments of the week include Katja Grace on Economics Whack-A-Mole and dtsund on the evolutionary complexity argument in politics, grendelkhan on Nexium, Emirikol on the degree to which overpriced generics subsidize research, and especially Corey on how the government might save money by funding all drug research.