But no contemporary philosopher would divide the topics that way—not even if he or she believed that doghood existed and was a thing that did not change. A contemporary philosopher—if that philosopher concedes that there is any problem that can properly be called “the problem of universals”—will see the problem of universals as a problem properly so called, as a problem having the kind of internal unity that leads philosophers to speak of a philosophical problem. And the same point applies to the topic “the categories of being”: every philosopher who is willing to say that “What are the categories of being?” is a meaningful question will assign every aspect of that question to metaphysics