Some philosophers will no doubt respond that it is still imaginable that you and I are functionally identical in all relevant respects yet phenomenally different. But this claim presents a problem at least for those philosophers who oppose functionalism but who accept physicalism. For it is just as easy to imagine that there are inverted qualia in molecule-by-molecule duplicates (in the same external, physical settings) as it is to imagine inverted qualia in functional duplicates. If the former