For most of robotics history, teaching a machine a new skill meant one of two expensive things: an expert writing code line by line, or thousands of human demonstrations for a single task. Figure AI is betting on a third path. Its AI system, Helix, aims to let a humanoid robot hear a plain-language request, look at the scene in front of it, and work out the motions on its own. In under two years, Helix has gone from controlling a robot's arms and fingers to steering its entire body through home...