This work considers these questions and many others in this lucid and imaginatively argued volume of essays, at the heart of which lies a philosophy of the virtual. The notion of the virtual has assumed a remarkable level of importance in recent years with the development of new technologies and the emergence of the Internet. Yet its precise ontological status and the range of its application to time and memory remain unclear and relatively unexplored. Keith Ansell Pearson brings the virtual to centre stage and argues its importance for re-thinking the central philosophical questions.