At this year's World Science Festival in New York, Nick Bostrom joined a distinguished panel, led by Robert Krulwich and featuring physicist Brian Greene, cosmologists Alan Guth and Andrei Linde to discuss and debate 'infinite worlds'. The multiverse hypothesis, suggesting that our universe is but one of perhaps infinitely many, speaks to the very nature of reality. Visit the World Science Festival website to view videos of the panel as they discuss and debate this controversial implication of forefront research and explore its potential for redefining the cosmic order.