I've changed my mind on whether Cosma Shalizi believes that P=NP. I thought he did, upon reading "Whether there are any such problems, that is whether P=NP, is not known, but it sure seems like it.", at his blog, only to discover after emailing him that he made a typo. I've also learned not to bet with people with such PredictionBook stats, and specially not as much as $100.00.
Never bet against a Gwern, good advice.
Admitting to being wrong isn't easy, but it's something we want to encourage.
So ... were you convinced by someone's arguments lately? Did you realize a heated disagreement was actually a misunderstanding? Here's the place to talk about it!