Elon Musk said a third person has received an implant from his brain-computer interface company Neuralink, one of many groups working to connect the nervous system to machines. “We’ve got … three humans with Neuralinks and all are working well,” he said during a wide-ranging interview at a Las Vegas event streamed on his social media platform X. Since the first brain implant about a year ago, Musk said the company has upgraded the devices with more electrodes, higher bandwidth and longer battery life.