My attention has been drawn to the video of Alex Gamburd’s recent talk at the IHP on his joint work with Jean Bourgain and Peter Sarnak. If I had been in town for the workshop, I would probably have attended, in which case I would have been struck, as have many of our colleagues, by Alex’s couture. Cédric Villani was not in attendance, but the inevitable comparison to the Lady Gaga of mathematics has been recorded. Is Alex the Bryan Ferry of mathematics? Still too many lead singers, not enough of a rhythm section.