The Bristol Festival of Ideas have invited me along to Waterstones, The Galleries, Bristol, to talk about Stalin’s scientists on 24 April at 7pm. “The Soviet Union’s sciences were the largest and best funded in history,” it says in this here programme, “and were at once the glory and laughing stock of the intellectual world” — a description that might well apply to me. Anyway, I’m going to be speaking. Come listen. Tickets are £6.