The role of conceptual analysis is to show that a putative reduction respects the original meaning of the target expression (Jackson 1998a, 28). A physicalist won’t succeed in accounting for free will if she identifies free will with having a temperature of 37.4º C – such a “reduction” would simply change the subject under discussion. A successful reduction must be answerable to our original shared understanding of the target expression—and elucidating this original understanding just is what co