 The question of the metaphysical significance of disunity and anti-reductionism takes one straight to the larger issue of the epistemology and metaphysics (and aesthetics, social culture and politics) of pluralism. And here one encounters the familiar issues and notions such as conceptual schemes, frameworks and worldviews, incommensurability, relativism, contextualism and perspectivalism (for a general discussion see Lynch 1998; on perspectivalism about scientific models see Giere 1999 and Rueger 2005). In connection with relativism and instrumentalism, pluralism has typically been associated with antirealism about taxonomical practices. But it has been defended from the standpoint of realism (for instance, Dupré 1993 and Chakravartty 2011). Pluralism about knowledge of mind-independent facts can be formulated in terms of different ways of to distribute properties (sociability-based pluralism), with more specific commitments about the ontological status of the related elements and their plural contextual manifestations of powers or dispositions (Chakravartty 2011, Cartwright 2007).