Broadly speaking, naturalism refers to views that consider philosophical method to be continuous with the methods of science, implying that at least some scientific methods have an impact on whatever philosophy can say about the norms of inquiry. When naturalism is used as a model for epistemology one talks of naturalized epistemology. Similarly, naturalized philosophy of science indicates a philosophy of science that is continuous with science. How to understand such continuity is a major source of controversy in epistemology and the philosophy of science.