"He was in his own parallel universe. He was a physical presence, like the furniture, sitting there jotting down crazy notations at the dining room table night after night. I think he was deeply disappointed that he knew he was a genius but the rest of the world didn’t know it."
— Mark Oliver Everett, re: his father Hugh Everett III, the first to propse first proposed the many-worlds interpretation (MWI) of quantum physics.