I like going to the library, in particular the GGB library at the VLB in Berlin. Less than 15 minutes on the bus, a few minutes of walking, and I’m there. Earlier this week, I spent two days researching for my new book. When you go through a lot of historic material, there’s inevitably some bycatch, random articles in journals or paragraphs or sections of books that you didn’t intend to look up, but stumbled upon, that turn out to be super interesting.