On Thanksgiving, Tesla's Optimus robot has once again redefined our imagination of robotic technology. In the latest demonstration video, this humanoid robot showcased its astonishing hand operation ability by effortlessly catching thrown tennis balls. This is not just a simple catching performance. Optimus's new hands and forearms integrate several revolutionary technologies. Its hands have 22 degrees of freedom, while the wrists and forearms add an additional 3 degrees of freedom, bringing its dexterity close to the human hand's 27 degrees of freedom. This means the robot is performing with astonishing capability.