 A related point is that, insofar as revolutions are highly nonlinear, it is difficult to ascribe to them any particular reason or cause; for, as indicated, the triggering events can be quite ordinary work, work that unexpectedly opens up new vistas for exploration. A small cause may have an enormous effect. To be sure, the state of the relevant scientific system must be such that the events do function as triggers, but we need not expect that such a system always be readily identifiable as one in crisis in Kuhn’s sense. Rather, the highly nonlinear revolutionary developments can be regarded as statistical fluctuations out of a “noisy” background of ordinary work. At any rate, on this view it is a mistake to think that explaining revolutions requires locating a momentous breakthrough (Nickles 2012a and b).