After Michael Chorost suddenly lost what was left of his hearing he took the radical step of having a cochlear implant -- a tiny computer -- installed in his head. A technological marvel the device not only restored to him the world of sound but also could be routinely upgraded with new software. Despite his intitial fear of the technology s potentially dehumanizing effects Chorost s implant allowed him to connect with others in surprising ways: as a cyborg he learned about love joined a writing group and formed deeper friendships. More profoundly his perception of the world around him was dramatically altered. Brimming with insight and written with charm and self-deprecating humor Rebuilt unveils in personal terms the astounding possibilities of a new technological age.