This chapter confronts the primary obstacle to determining the frequency of stasis: the silence of our sources concerning the occurrence of stasis in almost all the roughly 200,000 polis-years that constitute Greek history 500–301. First, it uses the proxies for prominence introduced in Chapter 4, together with the results obtained in Chapter 5 and a set of case studies, to show that our sources rarely provide any positive evidence for stability (i.e., the absence of stasis); and that their silence is, consequently, our only source of evidence for stability in most polis-years. Second, it shows that, contrary to prevailing assumptions in existing scholarship, silence has no explanatory value vis-à-vis stability in most polis-years. In other words, the fact that no extant source indicates the occurrence of stasis in a given polis-year very rarely militates against the possibility that stas(e)is occurred. Finally, it concludes that the extant sources provide us with evidence for stability in only a few, exceptional cases. Consequently, we have to recognize that unattested staseis could potentially have occurred in almost any of the 200,000 polis-years under consideration.