CNN | Negroponte gave the first talk Monday at the TED 2014 conference. He is one of many TED “all-stars” invited to reappear on the conference’s stage.

Among them: Wikipedia founder Jimmy Wales, inventor Ray Kurzweil, robotics expert Rodney Brooks, educator Salman Khan, Gen. Stanley McChrystal, Whole Earth Catalog founder Stewart Brand, and Sir Tim Berners-Lee, who invented the World Wide Web.

related viewing from TED: