The advent of full-body prosthetics could expand the range of human labor significantly.
It's not about inserting dozens of micro missiles, Si Anweisitan, and various mechanical systems into a person to turn them into a living robot, as, after all, a killing robot serving as a bodyguard indeed has a deterrent effect, but on the battlefield, it is just a somewhat capable robot. If its energy gets depleted or it's caught under enemy fire, it's merely another number on the casualty list.
Bodyguards for important figures are indeed essential, but what is even more critical is the field of warfare:
Humans will operate more powerful war machines, such as supersonic aircraft.
Full-body prosthetics can use hydraulic systems and circuits to keep the mechanism running smoothly, and adding a pressure-motion balance system outside the brain shell can allow pilots to comfortably withstand more than ten G-forces while maintaining normal thinking at supersonic speeds.
