 Compatibilism emerges as a response to a problem posed by causal determinism. But what problem is that? Well, suppose, as the thesis of causal determinism tells us, that everything that occurs is the inevitable result of the laws of nature and the state of the world in the distant past. If this is the case, then everything human agents do flows from the laws of nature and the way the world was in the distant past. But if what we do is simply the consequence of the laws of nature and the state of the world in the distant past—then we cannot do anything other than what we ultimately do. Nor are we in any meaningful sense the ultimate causal source of our actions, since they have their causal origins in the laws of nature and the state of the world long ago. Determinism therefore seems to prevent human agents from having the freedom to do otherwise, and it also seems to prevent them from being the sources of their actions. If either of these is true, then it’s doubtful that human agents are free or responsible for their actions in any meaningful sense. 