is identical to the library from the 1993 computer game Myst, complete with a musical homage to the game's soundtrack. In The Simpsons and Their Mathematical Secrets, Simon Singh notes "we glimpse a cosmological equation (ρm0 > 3H02 /8πG) that describes the density of Homer's universe. Provided by one of Cohen's oldest friends, the astronomer David Schiminovich, the equation implies a high density, which means that the resulting gravitational attraction will ultimately force Homer's universe to collapse. Indeed, this is exactly what happens toward the end of the segment." Cohen told Entertainment Weekly that the equation predicts "the universe is going to one day collapse in on itself, and that was to represent the fact that the 3-D world collapses in on itself at the end." The fate of the universe was an unsolved problem at the time, though Cohen noted in 2018 that “astronomers now believe that our universe will not collapse back in on itself." Cohen would later include references to Fermat's Last Theorem in "The Wizard of Evergreen Terrace", where solutions to it appear on a chalkboard. Cultural references The title of "Attack of the 50-Foot Eyesores" is a reference to the film Attack of the 50 Foot Woman. In "Attack of the 50-Foot Eyesores", some of the mascots are parodies of real life mascots. The giant walking mascots of Prof. Peanut, The Giant Exterminator and the Zip Boys named Maury, Mel and Mack are parodies of Mr. Peanut, Mr. Little of the Western Exterminator company, And Manny, Moe and Jack. "Nightmare on Evergreen Terrace" is a parody of the film A Nightmare on Elm Street and its sequels, and Bart's dream at the opening of the segment features many elements similar to the cartoons of Tex Avery. The segment "Homer3" is a parody of The Twilight Zone episode "Little Girl Lost", in which a girl travels through a portal to the 4th dimension. At one point, Homer compares the situation to "that twilighty show about that zone". Homer passes by the library from Myst, a reference to the famed computer game of the era. Series creator Rand Miller later reflected on a call he received from the studio, when asked for permission to use the exact game graphics on the show. The film Tron is also mentioned by Homer as a means of describing his surroundings. The three-dimensional rotation shot of the dimensional vortex is a