Wow! “The current state of the art is humans, mostly quadriplegic people, with chips which let them control robot arms with enough accuracy to pick up small delicate objects, play games, and type by thinking words. Current state of the art implants let people get tactile feedback too - they can intuitively know the position of the arm they’re controlling and feel the amount of pressure on each finger tip.” https://news.ycombinator.com/item?id=26747773