Back in March, I debated Rupert Reed at the Center for European Studies at Berkeley. Rupert is a British Green politician and philosopher (a Wittgenstein expert, actually) who has recently emerged as a spokesman for the Extinction Rebellion. The debate is not uninteresting. In fact, it got quite rather testy at several points, as for example when I felt compelled to defend the IPCC against Rupert’s rather apocalyptic take on radicalism. Here’s the video. . .