 Given its contrarian approach to nearly the whole of modern philosophy, Meillassoux’s thought is at least as controversial as the “fideism” it challenges, and its plausibility depends on one’s position on a host of fundamental issues which it is beyond the scope of this article to discuss. (For useful critical discussions of Meillassoux’s thought, see Sparrow and Watkin.) In this respect, it helps to show how the question of fideism, far from being a peripheral issue in the philosophy of religion, leads directly into the very deepest questions of modern metaphysics and epistemology.