London's To Build A Fire: Naturalism in Modern Life When Jack London wrote "To Build a Fire" he embraced the idea of naturalism because it mirrored the events of daily life. Naturalism showed how humans had to be wary at every corner because at anytime death could be there, waiting for them to make a mistake and forfeit their lives. He used naturalism, the most realistic literary movement, to show how violent and uncaring nature really is and how no matter what you do nature will always be there. London also presented the basic idea of Darwinism and the survival of the fittest, basically if you are dumb you will die. Collectivel