 The expression extended mind was coined by Clark and Chalmers (1998), but essentially the same view has gone by a variety of names, including “active externalism”, “extended cognition” (both Clark and Chalmers 1998), “vehicle externalism” (Hurley 1998), “environmentalism” (Rowlands 1999), and “cognitive integration” (Menary 2007). While this variegation in nomenclature is unimportant in itself, it is important to (a) to distinguish extended mind from other views with which it might be confused, and (b) capture the significant internal variegation in views that might be classified as versions of extended mind. First, however, the general idea needs to be delineated (see Menary 2010 for a collection of thematic papers, both pro and con).