Elon Musk's brain technology start-up, Neuralink, showcased its first brain implant patient on Wednesday. The livestreamed event unveiled a quadriplegic man, Noland Arbaugh, who defied physical limitations by controlling video games and online chess using only his thoughts. Neuralink, founded by Musk, has pioneered an implant that enables patients to harness their brain activity to operate computers and devices. Musk has emphasised the company's commitment to aiding individuals with severe physical disabilities, such as cervical spinal cord impairment or quadriplegia.