To what degree can the philosophy of Cornelius Castoriadis help analyze and evaluate our current social reality in relation to the project of autonomy? How meaningful is his political proposition for direct democracy in the 21st century? What significance do the concepts of social time and social space have in the determination of political freedom? Castoriadis and Autonomy in the 21st Century presents basic concepts of Castoriadian philosophy, including the social-historical plane, ontological creativity, and social and individual time that provide the theoretical tools to evaluate the historical phenomena of our era. Drawing from Greece’s own turbulent past and the current global crisis to reveal new significances of social freedom, global solidarity and movements of direct democracy, this book explores social autonomy and human freedom today through critical dialogue with Castoriadis' ideas.