Those who plowed through Deathly Hallows in a matter of days and are now suffering Potter withdrawal might be interested to know that there seems to be some kind of Potter academic/fan conference in town this weekend. Prophecy 2007: From Hero to Legend runs from Thursday through Sunday. Seminars include “Lost in Translation?: Harry Potter, from Page to Screen,” “The Science of Harry Potter,” and “The Alchemical End-Game: The Rubedo in Deathly Hallows” (we’ll assume that last one means something to you folks). Strangely, though, nothing about the overlapping power dynamics that come into play between blockbuster authors, retailers, and media.