Tesla Optimus V3 hand patent just dropped → Tendon-driven → Actuators located in the forearm → Cables routed through the wrist, simulating human anatomy → Each finger has 4 degrees of freedom, the wrist has 2 degrees of freedom Advanced cable routing tech designed to minimize friction and crosstalk during movement They’re not building a gripper. They’re replacing muscles and tendons with motors and cables, reconstructing the human hand. Musk says, 'The hand is the most challenging engineering problem for Optimus.' After all, nature has already perfected it, and we can inherit that wisdom. This patent shows why: Flexibility requires mimicking biology, not replacing it with servos.