Robots don't perform the surgeries, but they are tools that give the surgeon more dexterity and let you get into confined spaces. You can eliminate hand tremor, and you can be very precise and delicate. It's as if the tips of the instruments become your fingertips.

When doctors need to perform a coronary bypass; The surgical robot is so precise that it can actually account for the motions of a beating heart and still proceed with surgery — no small feat, considering the operations being performed require millimeters long accuracy. Robotic surgical assistance and advancements in nanotechnology could result in surgeries where you don't have to get your chest cracked open ever again instead leaving you with the tiniest of scars.