Yesterday and today have involved rather more swimming in academic waters than I’m used to, though all three events – at Imperial College (yesterday), and (today) Goodenough College and LSE – were surprisingly lively. The Imperial session was my annual stint there, with MSc students, and thoroughly enjoyable. The Goodenough conference saw the launch of Rebecca Harding’s new report on Hidden Social Entrepreneurs. And the LSE evening event was a speech to an open audience on the links between economics and climate change. Began by admitting I had given up economics in 1968, at a point in time when it seemed to have little to do with what was going on in the streets and wider world at the time.