We're filling up the world with technology and devices, but we've lost sight of an important question: What is this stuff for? What value does it add to our lives? So asks author John Thackara in his new book, "In the Bubble: Designing for a Complex World". John Thackara, described as a "design guru, critic and business provocateur" by Fast Company, is the Director of Doors of Perception, a design futures network based in Amsterdam and Bangalore.