Amidst the backdrop of Tesla's electric vehicle (EV) business experiencing a slowdown in growth, the humanoid robot initiative "Optimus," a project that Musk holds in high regard and anticipates will outperform the EV sector, is now grappling with significant technological hurdles. Sources with inside knowledge of the situation have disclosed that, owing to the formidable design challenges associated with the robot's "hands," Tesla has scrapped its plans to manufacture thousands of "Optimus" units this year. At present, the project's annual production capacity is limited to just a few hundred units, a figure that falls well short of Musk's ambitious target of 5,000 units. The design of "Optimus" hands necessitates a level of flexibility and functionality comparable to that of a human hand. However, the current technology is still in its rudimentary stages, characterized by a lack of sufficient degrees of freedom, as well as problems such as joint motors overheating and the dexterous hands having a low load-bearing capacity. Despite these formidable obstacles, Musk remains steadfast in his belief in the future prospects of "Optimus," forecasting that it could eventually surpass the EV business and substantially enhance the company's market valuation.