A decision has been taken to move the conference back four weeks. The revised dates are 10:00 GMT, Monday, 13 December, to 12:00 GMT, Sunday, 19 December. We were originally planning up to 72 speakers or interviewees in two parallel streams, most of the videos being followed by live Q&A sessions. It’s now been decided to hold the event in one stream, which has doubled the conference duration from three to six days.