A groundbreaking vision of anthropology as the practice of the permanent decolonization of thought The iconoclastic Brazilian anthropologist and theoretician Eduardo Viveiros de Castro, well known in his discipline for helping initiate its “ontological turn,” offers a vision of anthropology as “the practice of the permanent decolonization of thought.” Bold, unexpected, and profound, Cannibal Metaphysics is one of the chief works marking anthropology’s current return to the theoretical center stage.