NOVA

The Fabric of the Cosmos: The Illusion of Time (2) (38x22)

Air date: Nov 09, 2011

Ask physicists what time actually is, and the answer might shock you: they have no idea. The deep sense we have of time passing from present to past may be an illusion. How can our understanding of something so familiar be so wrong? In search of answers, Brian Greene takes us on the ultimate time-traveling adventure.