 From a methodological point of view, disunity is simply the global negative expression of a model of local unity such trading-zone, by contrast with globalists, formal models (Galison 1998), with an emphasis on a plurality of scientific methods (Suppes 1978) and causal indeterminism, on a plurality of scientific styles with the function of establishing spaces of epistemic possibility, and a disunity of science in terms of plurality of unities (Hacking 1996; Hacking follows the historian A.A. Crombie; for a criticism of Hacking’s historical epistemology see Kusch 2010). 