One of the rising stars of contemporary critical theory, Bruno Bosteels discusses the new currents of thought generated by figures such as Alain Badiou, Jacques Rancière and Slavoj Zizek, theorists spearheading the revival of interest in communism. Bosteels discovers a vital break with “speculative leftism”—incapable as it is of moving beyond lofty abstractions—that reconceptualizes the categories of masses, classes and state.