World Science Festival 2009 Time Since Einstein event. Albert Einstein shattered previous ideas about time, but left many pivotal questions unanswered: Does time have a beginning? An end? Why does it move in only one direction? Is it real, or something our minds impose on reality?

This video set up the second part of the conversation between John Hockenberry, Fotini Markopoulou, Sean Carroll, George Ellis, David Albert and Roger Penrose, by describes the tension between our experience of time passing and Einstein's description of time. See video of live event here: http://vimeo.com/6435742.