FILE PHOTO: Tesla Chief Executive, Elon Musk enters the lobby of Trump Tower in Manhattan, New York April 22, 2017 780 × 519 Elon Musk on mission to link human brains with computers in 4 yrs: Report FILE PHOTO: Tesla Chief Executive, Elon Musk enters the lobby of Trump Tower in Manhattan, New York, U.S., January 6, 2017. REUTERS/Shannon Stapleton/File Photo