In this article, H. J. van der Meer points out that although much of the world believes in some sort of divine being(s), believers seem perfectly happy to use scientific creations like modern medicines, artificial fertilizers, or mobile phones. He points out that these products could only have arisen from a manner of thinking that has led us to understand the natural world as a product of evolutionary processes. Although this scientific (or naturalistic) view of the world is incomplete and the world is not fully comprehensible, the worldview is the logical consequence of the methodology. Nevertheless, many Christians believe in a ‘god of the gaps’ that is called upon when scientific explanations fail, and they may even advocate Intelligent Design creationism. At least traditional (young-earth) creationists, Jews, and Muslims, he notes, are less hypocritical in their rejection of scientific theories about the evolution of life and the universe: they stick to their belief in a divine Creator in the teeth of the evidence. But what is it that causes people to cling so firmly to their religion, and become so suspicious of science, in the first place?