Robot learns 20+ step chemistry experiment without a single on-robot training demo. Using only a few hundred wearable demos, with zero real-robot training, TwinDex by X Square Robot (自变量机器人) mastered a complex 20+ step chemistry experiment involving tool switches, fine force control, and bimanual coordination. The old way you had to either physically grab the robot's metal arm through every motion, or wear a controller to drive it, keeping the robot powered on and mirroring your every move for the entire multi-step procedure. Now with the new way you just wear a glove that matches the robot's hand, perform the task at your own pace while the robot stays turned off or works on other things, then replay the recording to the robot. It frees up the hardware and slashes training time by 5x.