This sounds very complicated. Maybe the future of medicine is in simplifying the human biology and possibly even "upgrading" it to something that is less susceptible to illness and injury.
Interesting idea. I wonder if instead of requiring oxygen to hand off electrons to during respiration we could substitute a simpler system by dumping the excess charge via a wire? Anyone with domain expertise care to comment on whether this is possible?
And the current state of computing on a global scale is so ad-hoc it might as well have been evolved, so it probably wouldn't even feel that different.