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of systems external
to the person, but linked to them in a manner that lets them work cooperatively
with the person. They are there to extend and enhance
. Possibilities could include software agents
that process visual
information to highlight
anything of importance
agents that access information that is not present
in your brain, bringing it to you as you need it, or even perhaps a mechanical "exoskeleton
" to protect
and enhance the person.
Can also refer to systems that support an uploaded personality, ones that allow them to observe and communicate with the outside world, along with those that let them monitor their own states.
It could even be used to apply to a set of life-support systems that work automatically, providing nutrients, calories, and bodily safety and waste removal, so a person would be able to slip into a virtual reality for long periods of time without having to be concerned with the state of the body during that time.
The term was first coined in "Permutation City" by Greg Egan.