Otis Eugene Ray died on March 18, 2015. He was 87 years old. The website went down on August 2015. It was last archived by the Wayback Machine on January 12, 2016. A theory of everything (TOE or ToE), final theory, ultimate theory, or master theory is a hypothetical single, all-encompassing, coherent theoretical framework of physics that fully explains and links together all physical aspects of the universe.