Abstract

Of all the crew to serve on a starship Enterprise, none has had such a convoluted line of existence as the venerable Mr. Spock. This chapter explores what the various incarnations of Mr. Spock can tell us about the nature of reality, existence, and personal identity. Lewis argues for the metaphysical theory of modal realism: all possible worlds are as real as the actual world. In science fiction parlance, this philosophical concept of world is more often called a universe. Thus, Earth and Vulcan are both part of the same world depicted in Star Trek. The central question Lewis addresses is whether our world is the only real world, or whether other possible worlds could also be considered real. Lewis argues for the metaphysical theory of modal realism, all possible worlds are as real as the actual world.