Elon Musk's Neuralink said on Monday that it had raised $650 million in its latest funding round as its brain implant device enters clinical trials. "This funding helps us bring our technology to more people — restoring independence for those with unmet medical needs and pushing the boundaries of what's possible with brain interfaces," Neuralink said. It has started clinical trials for the device, which has a chip that processes neural signals that can be transmitted to computers or phones, in