Scientists are revolutionizing our understanding of life and death. Not only can people survive much longer after catastrophic injuries. It’s now possible to revive patients hours after they’ve been declared clinically dead. Steve Paulson talked about these medical advances with NYU intensive care doctor Sam Parnia, one of the world’s leading experts in resuscitation medicine and the author of “Lucid Dying.” They also discussed the new science of near-death experiences. This conversation was recorded at a live event at the Morgan Library in New York, in partnership with the Nour Foundation.