you are a cyborg

Andy Clark wrote a very clever book, Natural Born Cyborgs. It's non-fiction; the central thesis of the book is that humans are cyborgs by their very nature. A cyborg is a synthesis of man-machine. Therefore someone with a pacemaker, or a hearing aid, or an artificial limb, is technically a cyborg. But Clark takes it further- it's not just people with medical assistance who are cyborgs, it's all of us. Our diaries and calendars help us plan in a way that the original brains in our head could not, at least, not without assistance. Our vehicles, our shoes. They're all extensions of us- we collect and add to our bodies, building ourselves, discarding old shells like last year's fur.
Clark said that once he had this insight, it became obvious that when he lost his laptop, it was like experiencing a special kind of brain damage. The reason? It was brain damage. Clark says that his laptop is an extension of his brain.