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University of Chicago Law Review

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1819

Abstract

Prescriptive legal theories have a tendency to cannibalize themselves. As they develop into schools of thought, they become not only increasingly complicated but also increasingly compromised, by their own normative lights. Maturation breeds adulteration. The theories work themselves impure. This Article identifies and diagnoses this evolutionary phenomenon. We de velop a stylized model to explain the life cycle of certain particularly influential legal theories. We illustrate this life cycle through case studies of originalism, textualism, popular constitutionalism, and costbenefit analysis, as well as a comparison with leading accounts of organizational and theoretical change in politics and science. And we argue that an appreciation of the life cycle counsels a reorientation of legal advocacy and critique. The most significant threats posed by a new legal theory do not come from its neglect of significant firstorder valuesthe usual focus of criti cismfor those values are apt to be incorporated into the theory. Rather, the deeper threats lie in the second and thirdorder social, political, and ideological effects that the adulterated theory's persistence may foster down the line.

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