I always appreciated Dunes idea of a mentat, basically an accountant trained from birth and juiced up on brain steroids to have equal computing ability to a high level AI. Usually when I think of the way human conciousness may evolve and trancend its current capabilities my mind goes right to the psychadellic-bro conciousness expansion and non-localized astral projection stuff, its interesting to consider there are other potential paths to augmenting human conciousness and what other boundaries could be pushed.