Meta Ontology

According to Roy Sorensen [Philosophical Studies 100 (2000) 175-191] an object cannot differ aesthetically from its mirror image. On his view, mirror-reversing an object --- changing its left/right orientation --- cannot bring about any aesthetic change. However, in arguing for this thesis Sorensen assumes that aesthetic properties supervene on intrinsic properties alone. This is a highly controversial assumption and nothing is offered in its support. Moreover, a plausible weakening of the assumption does not improve the argument. Finally, Sorensen's second argument is shown to be formally flawed. As a result, the case for the aesthetic irrelevancy of orientation seems still open.