In science fiction, stories about simulated realities are commonplace. Writers and filmmakers delight in the chance to rattle our notions of reality and perception. Even Kurt Vonnegut toyed with the idea in his novel, Breakfast of Champions. But to Nick Bostrom, a philosopher and co-founder of the World Transhumanist Association, simulated realities are more than just a provocative thought experiment. In fact, he believes it is more than likely that we are all part of one right now.

This program is part of The Big Idea Series, made possible with support from the John Templeton Foundation.

Recorded June 2009; Posted April 2011