This paper was to have been Wu Hung’s contribution to the conference “Contemporaneity in the History of Art” at the Sterling and Francine Clark Institute, Williamstown, Mass., October 8 and 9, 2009. However, he was unable to attend. The paper is presented here in the form in which it would have been presented. See also, in this issue of Contemporaneity, notes from this conference by its convener, Terry Smith.