The characteristics the study eventually associated with liberals—risk-taking, sensation-seeking, impulsivity, and authoritarianism—are the characteristics of elevated dopamine.1 But do dopaminergic people really tend to support liberal policies? It seems that the answer is yes. Liberals often refer to themselves as progressives, a term that implies constant improvement. Progressives embrace change. They imagine a better future and in some cases even believe that the right combination of technology and public policy can eliminate fundamental problems of the human condition such as poverty,
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