For more than twenty-five years, the antimelodic "noise" of Sonic Youth has assaulted us, exhilarated us, inspired us. Why? Katherine Dunn says it's because they operate in the foggy world between the real and the surreal. Mary Gaitskill says that Sonic Youth caught her, years ago, when she was falling. J. Robert Lennon says it's because Sonic Youth rip it apart. Emily Maguire was hooked because once she was in love with chaos. Their sound is caustic,...