This new super humanoid outruns and outjumps any human. Its maker is now worth $51 billion

On August 17, Unitree Robotics posted a 30-second video to the Chinese social network Weibo. It showed a headless humanoid named Superman jumping six and a half feet off the ground and sprinting at more than 28 miles per hour—higher and faster than any human in history (Usain Bolt, who holds the record for fastest human, clocked a top speed of 27.78 mph). Two days later, the Hangzhou-based company went public on Shanghai’s stock market. Its stock briefly touched $163.66, a 629% premium ove...