Elon Musk late Thursday highlighted Neuralink's progress toward restoring mobility, sharing a demonstration of physically impaired trial participants controlling powered wheelchairs solely through thought. "Neuralink helping those who have lost their mind to body connection," Musk wrote on X. Neuralink said its N1 implant uses 1,024 electrodes in the motor cortex to detect neural activity linked to intended movement, with a machine-learning model translating those signals into cursor commands that operate a powered wheelchair through a live camera feed. The video showed participants moving forward and backward, steering and adjusting their seats while navigating indoor rooms and outdoor paths, with an automatic return-to-center feature slowing and stopping the chair when a user loses focus. The demonstration extends technology first designed to let people with paralysis control computers; Musk branded the device "Telepathy" before Neuralink implanted it in Noland Arbaugh, the first PRIME Study participant, in January 2024. The PRIME Study remains an early feasibility trial evaluating the N1 implant and Neuralink's surgical robot in people with severe paralysis, and the wheelchair system and implant remain investigational and lack regulatory approval. Neuralink said in January that it had enrolled 21 people worldwide, reporting no serious device-related adverse events, and plans to increase the next implant from roughly 1,000 to 3,000 electrodes.