This Saturday I had my birthday at the San Francisco Municipal Waterslide, which just opened at the newly renovated Hamilton Rec Center. The party was excellent - enough people showed up, but not so many that we started getting in each other's way ( Read more... )

At TAM7 this year I heard a talk from Michael Shermer about tribalism, politics, and group dynamics. I enjoyed some of it but I started having problems about halfway through. The first problem came with this familiar diagram, which I've seen many times but never noticed something till now:


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