Read More Skeptic In recent years a number of books written by women in their 30s reflect on their sexual histories in their 20s in a regretful way, deciding that the type of feminism that liberated women to have sex like men — carefree and commitment-free with a variety of partners and with no consequences — is perhaps not the best strategy inasmuch as women and men differ in their sexual psychology. In this article psychologist Carol Tavris evaluates this claim and how it comports with both science and feminism.