The writer of alternate history asks "what if?" What if one historical event were different, what would the world look like today? In a similar way, the postmodern philosopher of history suggests that history is literature, or that if we read certain historical details differently we would get a distinctly different interpretation of past events. While the science fiction alternate history means to illuminate the past, to increase our understanding of past events, however, the postmodern approach to history typically suggests that such understanding is impossible. To the postmodern...