I attended a short but intense event run by the London Knowledge Lab. It’s amazing what you can pack into two hours if you organise it well. The seminar comprised a couple of brief talks, followed by a kind of organised free-for-all in which attendees were encouraged to spend around ten minutes looking at each of several demonstrations of work in progress. I haven’t had time to explore everything I saw or heard about, so here are some general bullet points which may prove useful.