An artist travels to Houston for a performance art festival. The festival begins and ends. The artist arrives and then leaves. What remains behind? What is taken away? What (if anything) is changed; and where is the art? A philosopher will call this last question an error of category. She might point out the MFAH, the buildings, the Curators or the collections, but she cannot show you the art nor even tell you what it is. Artists cannot answer this question any more than a po