The idea was developed by the social psychologist LeonFestinger and it's called "Cognitive Dissonance Theory."
这个理论由社会心理学家Leon, Festinger提出的，被称为“认知失调理论”。
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According to social psychologist LeonFestinger, we re-evaluate the options postchoice to reduce the tension that arises from making a difficult decision between equally desirable options.