Reduction can be extended into a model of science history and, subsequently, a model of human nature and society. The link between a mechanical view of human nature and the politics of totalitarianism is more or less obvious to studious observers. Totalitarianism is based more often upon a theory than a personality. Since it is manifested in a party or an elite group made up of many individuals, it can and often does survive the death of the original founder of the regime. Eliminative atheism believes that science will eventually become a closed system of laws and theories that will explain every significant fact about the universe that precludes or eliminates the religious idea. Replacement scientific atheism is observable in the controversies that have been brought up recently regarding the theory of evolution, controversies that have entered the popular culture beyond the bounds of academic discourse.