How firm a possible foundation? : modality and Hartshorne's dipolar theism
Abstract
In The Untamed God (2003), Jay Wesley Richards defends what he calls “theological essentialism,” which affirms God’s essential perfections but also recognizes contingent properties in God. This idea places Richards’s view in the vicinity of Charles Hartshorne’s dipolar theism. However, Richards argues that Hartshorne’s modal theory suffers from the defects that it abandons the principle ab esse ad posse, makes nonsense of our counter-factual discourse, and can only be expressed by C. I. Lewis’s S4, although for certain purposes Hartshorne needs the stronger S5. Richards, however, fails to realize that Hartshorne’s theory involves two concepts of necessity—necessity as what is common to every possible world-state and necessity as it pertains to the unalterability of the past. While questions remain about Hartshorne’s theory, Richards’s arguments against it are unsuccessful. Most importantly, Richards uncritically accepts the concept of possible worlds as a basis for his critique, but Hartshorne’s arguments cast doubt on the coherence of this idea. Possible worlds provide anything but a firm foundation on which to make sense of either theological essentialism or Hartshorne’s panentheistic dipolar theism.