The canon has long served as a means of controlling the information that the professional classicist, who is facing a vast field of potentially relevant material, can be expected to possess. But recent developments (e.g. the rise of reception studies, a broadened definition of the ancient Mediterranean, comparative antiquities) have put pressure on this strategy. In this chapter we consider the limitations of two possible responses to such a situation—what Sheldon Pollock has called ‘hypercanonicity’, a doubling down on the canon, and ‘hyperinclusivity’, an attempt to encompass everything—before advocating what we call the ‘open field’, an embrace of the many different and singular configurations of knowledge that are coming to define the classicist in the twenty-first century.