isprove it. MacIntyre provides us with an example. Suppose that the determinist is able to formulate a complete explanation of my behavior in causal terms. But also suppose that my behavior is rational. Now what test can determine whether I acted because I was rational or because my behavior was just causally determined?Determinism, as can be seen, is not the best of arguments. It can work in some instances, but not in all, which is what it proposes to do. Some actions can be determined just by causal explanations, but these are only very few....