Part of the thread in the implant of Musk's brain-computer company's first subject falls off

On May 9, Neuralink, the brain-computer interface company owned by Musk, reported in a blog post on Wednesday that the implant on Noland Arbaugh, the first human to be implanted with a brain chip, had a problem, and the amount of data captured in the subject's brain decreased. Some of the data was lost because some of the threads implanted in the brain fell off. Although the ability of the implant has declined, the company still completed a live demonstration of Arbaugh playing chess. According to people familiar with the matter, Neuralink believes that one reason may be due to the accumulation of gas in Arbaugh's skull after surgery. The problem does not appear to pose a threat to its safety. But the implant in Arbaugh's brain may face removal. Neuralink internally expects its first test in human patients to be challenging, and remains optimistic that the problem can be solved.