he book’s introductory chapter justifies its overall theoretical, ecological framework, its scientific and cultural assumptions, and the range of the philosophical, interdisciplinary, and particular issues arising in the context of the ecology of virtual realities. The second chapter outlines a complementary perspective on virtual reality, disclosed by the philosophy of information, the proper categorical structures and relations to which the complex dynamics of virtual reality boils down. Chapter 3 extensively deals with the architecture and the design of virtual reality, the augmented reality, cyberspace, and the prospects for its future. Chapter 4 examines the auto/regulation of the virtual public sphere, considered as a digital ecosystem. The fifth and final chapter introduces us into the machinery underlying the phantasmagorical logic of virtual financial markets.