 It’s equally clear that members of the same linguistic community generally manage to use words to reliably coordinate their beliefs and actions (Jackson 1998b, 2004). When I ask you to pass the salt, you know roughly which white granular substance I’m asking for—you know, for instance, that it would be inappropriate to pass the sugar bowl or the pepper grinder. This sort of everyday coordination requires speakers to have similar dispositions to classify things as falling into the extension of words, and it requires that these similarities in classificatory dispositions be mutually obvious to all concerned: for it to make sense for me to say ‘please pass the salt’ in order to get salt, it must be common knowledge between us that we’re inclined to classify roughly the same things as ‘salt’. An empiricist explains this common knowledge by positing implicit conventions that require everyone to associate the very same reference-fixing template with a given word (Jackson 1998b; Lewis 1969).