> First, robot metabolism cannot rely on active physical support from any external system to accomplish its growth; the robot must grow using only its own abili

> First, robot metabolism cannot rely on active physical support from any external system to accomplish its growth; the robot must grow using only its own abilities. Not only this is extremely restrictive, but it is in contradiction with the second point > Second, the only external provision to robot metabolism is energy and material in the form of robots or robot parts.