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. Musk also said Neuralink hopes to implant the experimental devices in 20 to 30 more people this year.