In an essay in Philosophy of Science in Practice , Michael Strevens defines 'fundamentalism' as the notion that "Everything is made up of a single kind of stuff and everything that happens is directed solely by fundamental laws of physics that, depending on the configuration of stuff at one moment, determine its configuration at the next" (69). He goes on to claim that fundamentalism implies that all sciences really should just operate by showing how, say, mate selection in bower birds, or the nature of parliamentary institutions in Medieval Europe, can be derived from the laws of physics alone. The program to make all sciences a branch of physics goes under the name "unity of science." Strevens backs his fundamentalist faith with the claim that "the empirical evidence for fundamentalism has accumulated swiftly" (69). But he presents no such evidence, for, truth be told, there is none: instead, as he admits, "Real science is not only largel...