Antitrust is rich in nuance. An interdisciplinary field, its methods are at once empirical and theoretic. It absorbs the idiosyncratic features of countless markets. Its enforcement, if not its mission, concerns the regulation of business strategy. That focus puts squarely at issue the nature of the firm, how companies make decisions, the role and societal value of contracts, the implications of consolidation, and the machinery of competition itself. This endeavor requires an understanding of how markets work. Few undertakings are more complex. And yet, despite the impassioned howls of its most devoted followers, competition law remains technocratic only at the surface. Underneath lurk foundational, divisive, and ever-evolving societal values.