 In reply, the monist might deny that the asking of different kinds of questions to elicit metaphysical explanations implies that we should be pluralists. They might simply be different ways of asking for the same kind of explanation, for example. Moreover, why-questions are generally taken to elicit causal explanations but can sometimes also be used to elicit metaphysical explanations. One might then insist that whilst differentiating kinds of explanation requests by the question asked can be a useful heuristic, it is not a perfectly reliable method for distinguishing different kinds of explanation.