Peter Sloterdijk is a German philosopher notorious for his public spat with Jurgen Habermas, his proclamation that critical theory died in the 1990’s (much to the chagrin of Axel Honneth and other contemporary custodians of the tradition), and his gigantic three-volume Spheres trilogy, in which he presents a polemical and holistic philosophy of being, space and nature. The recent English translation of the trilogy has piqued the interest of theorists working on the interdisciplinary problems of culture, ecology and technology. His philosophical anthropology charting of the history of humanity’s self-organisation, specifically his account of “society as foam,” provides an intriguing challenge to the methodological assumptions that underpins much contemporary political theory. In the third and final volume, Sloterdijk offers a …