sentences:  Like two-thirds of the episodes of the series, "The Post-Modern Prometheus" is a "Monster-of-the-Week" episode, a stand-alone plot which is unconnected to the overarching mythology of "The X-Files".Cher's music plays a large role in "The Post-Modern Prometheus", Chris Carter having written the episode after spending a summer listening to Cher records and developing a fixation on the singer.Carter knew that Cher's half-sister Georganne LaPiere was a major "X-Files" fan, and Carter learned through LaPiere that Cher herself was intrigued by the show and would be interested in making an "X-Files" guest appearance.