Have you ever watched a film or read a novel, wishing that you could change the narrative to save your favorite character? Game designer David Cage allows you do just that in his video games, where players make decisions that shape an ever-changing plot. In a talk and live demo, Cage presents a scene from his new project, letting the audience control a character's decisions. "Interactive storytelling can be what cinema was in the 20th century: an art that deeply changes its time," Cage says. Check out more TED Talks: http://www.ted.com/ The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more. Follow TED on Twitter: http://www.twitter.com/TEDTalks Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: null