The prog rams that will permit the tool chest to follow the progress of the person it is trying to help have yet to be written. But the idea is plausible in principle. Object and movement recognition software, in cluding software that can understand emotions. Is improving by leaps and bounds. If fitted with a suitable camera, a piece of fur nature with appropriate programming could recognize the stages involved in, say making a picture frame-and even work out how much anguish the framemaker was experiencing.