Did the stair-climbing Chinese robot vacuum or flying robovac prototypes that wowed visitors at the 2026 Consumer Electronics Show in Las Vegas go into production? American consumers will probably not find out. Nor will US businesses and households get to buy Iron, Xpeng’s humanoid robot, so lifelike it had to be unzipped on stage to convince onlookers it was a machine. Even Elon Musk, whose Tesla is developing Optimus, praised his Chinese competitor’s model. The next generation of the dancing...