 The No Forking Paths argument (van Inwagen 1983; Fischer 1994; Ekstrom 2000) begins by appealing to the idea that whenever we make a choice we are doing (or think we are doing) something like what a traveler does when faced with a choice between different roads. The only roads the traveler is able to choose are roads which are a continuation of the road she is already on. By analogy, the only choices we are able to make are choices which are a continuation of the actual past and consistent with the laws of nature. If determinism is false, then making choices really is like this: one “road” (the past) behind us, two or more different “roads” (future actions consistent with the laws) in front of us. But if determinism is true, then our journey through life is like traveling (in one direction only) on a road which has no branches. There are other roads, leading to other destinations; if we could get to one of these other roads, we could reach a different destination. But we can’t get to any of these other roads from the road we are actually on. So if determinism is true, our actual future is our only possible future; we are never able to choose or do anything other than what we actually do. (See also Flint 1987 and Warfield 2003 for discussion of a related argument that appeals to the metaphor of our freedom to “add” to the list of truths about the world.)