Somewhere in a Cupertino warehouse, a giant labors with robotic precision, its 29 arms singularly focused on one thing: an iPhone. But instead of putting pieces together, this robot is pulling pieces apart. It disassembles iPhones at the rate of one handset every 11 seconds—less time than it takes you to fish your phone out of an overcrowded bag. Apple calls the machine Liam. A custom-designed R&D experiment, Liam dismantles iPhones and sorts the components…