During Tesla's shareholder meeting held on November 7, 2025, Elon Musk made a bold prediction. He stated that within the next 20 years, humans might be able to use Neuralink's brain - computer interface technology to upload their consciousness, in the form of an "approximate snapshot", to Tesla's humanoid robot, Optimus, thus achieving "digital immortality". Musk elaborated that the uploaded digital consciousness would not be an exact duplicate of the original human mind. Instead, it would be a dynamically evolving new entity, similar to how a person five years from now will be different from who they are today. This ambitious vision hinges on two key factors. Firstly, Neuralink needs to possess the capability to precisely capture neuronal activity and convert it into digital signals. Secondly, Optimus must offer the necessary hardware support to serve as a physical vessel for this digital consciousness. At present, Neuralink has successfully carried out animal experiments and early - stage human implantation trials. Meanwhile, Optimus is undergoing iterative development. The third - generation Optimus is scheduled to commence production in 2026. Musk is optimistic about the potential impacts of digital immortality. He believes that this technology could eliminate poverty, offer highly accurate medical services, and significantly boost the global economy, potentially expanding it by 10 to 100 times. However, the path to achieving digital immortality is not without obstacles. The technology still confronts dual challenges in the fields of biology and ethics related to the digital analysis of consciousness. These challenges encompass a range of issues, such as the intricate nature of neural coding, individual differences among people, neural plasticity, data privacy concerns, and the definition of identity in this new digital context.