Neuralink Admits That Implant’s Threads Have Retracted From First Patient’s Brain, Possibly Due to Air in Skull
In January, multi-hyphenate billionaire Elon Musk announced that his brain-computer interface startup Neuralink had successfully implanted a wireless brain chip into a human subject for the first time. Over the next couple of months, 29-year-old Noland Arbaugh was shown moving a cursor with his mind, playing Civilization VI and even a fast-paced round of Mario Kart. But as the Wall Street Journal reports, there have been complications behind the scenes. After it reached out to Neuralink, the company conceded in a blog post that there have been issues with the implant. Concerns started when the rate at which data was being streamed from Arbaugh’s implant declined over time, indicating something was off with the quarter-sized device. The N1 chip that was robotically implanted in Arbaugh’s skull is made up of a microprocessor, a battery, a communications chip, and 64 threads that are thinner than a human hair. The ends of these threads were inserted into the brain’s motor cortex, allowing it to relay Arbaugh’s intentions wirelessly. Some of these threads, though, have since retracted. One prominent theory is that …