HypothesisIAE, like all languages, has a community of users that it both sorts and unifies. That community is the art world, by which we mean the network of people who collaborate professionally to make the objects and nonobjects that go public as contemporary art: not just artists and curators, but gallery owners and directors, bloggers, magazine editors and writers, publicists, collectors, advisers, interns, art-history professors, and so on. Art world is of course a disputed term, but the common alternative--art industry—doesn’t reflect the reality of IAE. If IAE were simply the set of expressions required to address a professional subject matter, we would hardly be justified in calling it a language. IAE would be at best a technical vocabulary, a sort of specialized English no different than the language a car mechanic uses when he discusses harmonic balancers or popper valves. But by referring to an obscure car part, a mechanic probably isn’t interpellating you as a member of a common world—as a fellow citizen, or as the case may be, a fellow traveler. He isn't identifying you as someone who does or does not get it.