Two years ago, Sugata Mitra shared an amazing story at the TED conference. Back in 1999, wanting to see how kids who had never been exposed to computers would respond to them, Mitra put one in a hole in the wall in Delhi, turned it on, and left it there. The results were extraordinary. Eight-year-olds started teaching six-year-olds how to browse the Internet. Four hours after seeing a computer for the first time, another group of kids figured out how to record their own music and play it back to each other.