Watch PBS Idea Channel Season 1 Episode 22 Online

Good old Facebook. With 955,000,000 worldwide users, it seems like just about everyone makes use of the social media giant to connect with friends, share photos, and update everyone they've ever met since grade school about their dinner plans. But what you may not realize is that Facebook's new timeline layout is enhancing the ability to construct our self identity by super-charging our memory. Philosophers have been arguing about the link between identity and memory since John Locke first proposed the idea in the 17th Century, but human memory has always been deeply flawed and limited.