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Ray Kurzweil, a famous thinker in artificial intelligence who has worked at Google, just joined Subsense, a startup working on technology that could link human brains to computers. Instead of surgery, Subsense's approach uses microscopic particles called nanoparticles that you inhale like nasal spray. Once inside your brain, a special cap with magnetic coils could control these particles to either stimulate brain cells or read what your brain is doing.
Kurzweil believes this technology could eventually replace smartphones and other devices we use to access information. "The whole point of humans is to go to greater frontiers, expand who we are," he said at the company's announcement. Subsense is not alone in this race—Elon Musk's company Neuralink has already implanted wireless chips in about a dozen people's brains through surgery. However, Subsense's method avoids drilling into the skull, though doctors would still need to get the particles into your brain. The technology is still experimental, tested only on mice so far, and likely years away from being available to people.