Alex Conley is paralyzed from the neck down. He just flew that P-51 Mustang with his thoughts. Conley is patient two in Neuralink's PRIME study. A car rollover in 2021 severed his cervical spinal cord. In July 2024 a surgical robot threaded 64 polyimide ribbons (each thinner than a tenth of a human hair) into the hand-and-arm strip of his motor cortex, distributing 1,024 electrodes across the patch of brain that used to send signals to the muscles he can no longer move. His motor cortex never…