A future-proof term for a cognitive unit a mind tries to access, but is absent.
Do you think the artificial replacement of phantom limbs should be carried out with the care you suggest is taken when augmenting the mind? If so, next questions. The technology is not far enough along that complete sensation with feedback systems are possible. At this point would you consider this augmentation crude? At what level of sensation and feedback would you consider them sophisticated enough to be safely integrated with the nervous system?