This talk is part of a discussion series consisting of three sessions on the relationships between society, space and nature, and how they are currently being transformed both theoretically and by technological and environmental changes in the world.05.03.2004 The keynote speaker for the first of the three sessions is Manuel DeLanda - a New York based philosopher and science writer with an exceptionally cross-disciplinary body of work. Often drawing on the work of Gilles Deleuze, he has written on nonlinear dynamics, theories of self-organization, artificial life and intelligence, chaos theory as well as architecture, and the history of science. DeLanda is currently a professor at the Graduate School of Architecture, Columbia University. His publications include War in the Age of Intelligent Machines, One Thousand Years of Non-Linear History and Intensive Science and Virtual Philosophy. DeLanda will be joined by Olafur Eliasson, Doreen Massey and Dominic Willsdon.