Will ads be able to read your mind?

GUEST: Not content to conquer Mars, Elon Musk recently set his sights on colonizing the brain. Musk’s new company, Neuralink, announced in late March, plans to make devices that can be implanted in the brain to enable a direct link to computers.
Shortly after Musk’s announcement, Facebook aired plans for technology that would let users type texts via their thoughts. Often when we try to imagine personal technology a decade from now, this type of scenario ranks high. Google