A brief biography of Sir Dave can be found here. The lecture will be delivered in Lady Mitchell Hall on Sidgwick Avenue. People need to arrive early if they want to be sure to get a seat in the auditorium where the lecture is being delivered, but others in the expected audience of up to 600 can watch the lecture over a video link from a nearby lecture theatre. There is an upper limit on the combined capacity of the live and overflow venues combined, so either way round you would need to get there in good time. This is part of a public lecture series, so it is open to people who are not members of the University of Cambridge. If you are keen to hear Sir Dave speak, just turn up in good time on the day.