Back in 1985, the best robotic surgeon we had was the Puma 560, a manipulator arm just barely more advanced than Rocky Balboa’s robo-butler. Just barely. The Puma was nevertheless revolutionary. It was the very first mechanical operator, progenitor to steady-handed robo-surgeons like the DaVinci system. But in the near future, robots will no longer be cutting into us — from the outside, at least.