 (For accessible, critical summaries of the “Big Systems” debate, see Suppe 1974, Newton-Smith 1981, McGuire 1992, and Zammito 2004. Space limitations have forced the omission of important developments, including the Marxist dialectical tradition, e.g., Nowak 1980, and recent work on stance and rationality, e.g., van Fraassen 2002, Rowbottom &amp; Bueno 2011.) 