Through an analysis of the emergence of ungrounded ontology, the chapter addresses the contemporary ontological turn and the theorists for whom being is the site of contingency (e.g., Meillassoux, Harman, Braidotti, Barad, Latour). These tendencies and their location in the broader posthumanist reorientation of theory since the turn of the twenty-first century share deep affinities with Spinoza’s metaphysics. To demonstrate this, the chapter closely examines the specific ontology of Jane Bennett. In analyzing her theory of materialism, the chapter takes as its focus such Spinoza-influenced concepts as immanence, conatus and distributed agency and especially their elaboration in Bennett’s Vibrant Matter and explains the important role they play in the (post)humanities in normalizing the capitalist every day.