Neuralink, the Elon Musk company that aims to create "ultra high bandwidth brain-machine interfaces to connect humans and computers," has revealed some of its in-development technology for the first time. This includes a wireless device implanted into the brain that could let users control smartphones and computers with their thoughts. At a press conference on July 16, Neuralink's ambitious plans were detailed for the first time, showcasing a future (a very distant future!) technology that could help people deal with brain or spinal cord injuries or controlling 3D digital avatars.