Current 3-D printing is, in fact, 2-D printing repeated until a three-dimensional object emerges. As clever as it is, it’s a long and cumbersome process that takes hours. Yesterday at TED 2015 Joseph DeSimone, professor at the University of North Caroline Chapel Hill, and cofounder of Carbon3D, announced a complete new approach to 3-D printing. His technology “grows” objects—in a science fiction way—from a pool of resin using light and oxygen. The process is 25 to 100 times faster than traditional 3-D printers.