First-wave liberals are today represented by “conservatives,” who stress the need for scientific and economic mastery of nature but stop short of extending this project to human nature. They support nearly any utilitarian use of the world for economic ends but oppose most forms of biotechnological “enhancement.” Second-wave liberals increasingly approve nearly any technical means of liberating humans from the biological nature of our own bodies. Today’s political debates occur largely and almost exclusively between these two varieties of liberals. Neither side confronts the fundamentally
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