foreword by Paul Virilio In this series of overlapping essays on architecture and art, John Rajchman attempts to do theory in a new way that takes off from the philosophy of the late Gilles Deleuze. Starting from notions of folding, lightness, ground, abstraction, and future cities, he embarks on a conceptual voyage whose aim is to help "construct" a new space of connections, to "build" a new idiom, perhaps even to suggest a new architecture. Along the way, he addresses questions of the new abstraction, operative form, other geometries, new technologies, global cities, ideas of the virtual...