I was reading Borges' short story, "Funes the Memorious." It is the tale of a Uruguayan boy who, one day, falls off a horse and, when he awakens, sees the world anew. In fact, he has perfect perception--he can see clearly all the most minute details. He can feel the most subtle changes in temperature, etc. At the same time, he awakens to a perfect memory. He remembers everything, absolutely everything. Every detail, every sight, every sensation. He can recall a day, but to do so takes an entire day. By comparison, our perception and memory are a dreamlike haze: For nineteen years he had lived as one in a dream: he looked without seeing, listened without hearing, forgetting everything, almost everything. When he fell, he became unconscious; when he came to, the present was almost intolerable in its richness and sharpness, as were his most distant and trivial memories. Somewhat later he learned that he was paralyzed. The fact scarcely interested him. He reasone...