Susan Buck-Morss' recent book, Dreamworld and Catastrophe: The Passing of Mass Utopia in East and West, is an ambitious if not audacious project. Spanning the disciplinary range of the humanities and social sciences, Buck-Morss has produced a work that is as much political theory and philosophy as it cultural criticism and intellectual history. In fact, this is her stated aim: to upset the disciplinary boundaries in search of a new way of conceptualizing the history of the twentieth century.