 (3) Moreover, Kuhn extended the claim that observation is theory laden to say that all major aspects of a science are laden by the others. Substantive data and theoretical claims, methodological standards, goals, and even the social institutions of science are all bound up in mutual dependence. (The received view had kept them separate and independent in order to avoid mutual contamination allegedly leading to circularity; see Scheffler 1967.) It is this internal feedback that introduces the interesting, nonlinear dynamics into Kuhn’s model, since the feedback produces coupled interaction terms (Kuhn 1977: 336; Nickles 2013b; De Langhe 2014b).