11 of the best Ted Talks on technology

Torvalds touts the benefits of open source software, describing how opening up his project to thousands of other people led to improvements he had not imagined. "It didn't even start by people contributing code, it was more that people started contributing ideas." Urmson espouses the benefits of driverless cars, and how to get around the problem that as cars get smarter, drivers get more irresponsible. "My oldest son is 11, and that means in four and a half years, he's going to be able to get his driver's license. My team and I are committed to making sure that doesn't happen."