Ditching the stuffy hang-ups and benighted sexual traditionalism of the past is an unambiguously positive thing. The sexual revolution has liberated us to enjoy a heady mixture of erotic freedom and personal autonomy. Right? Wrong, argues Louise Perry in her provocative new book. Shermer and Perry discuss: What was the sexual revolution? • feminism: first wave, second wave, third wave, and beyond • the evolutionary psychology of sex differences • experiencing self vs. remembered self • individual freedom vs. societal good • monogamy vs. polygamy • marriage vs. domestic partnerships • Why is the government in the marriage business? • BDSM and sexual violence • autogynephilia • trans matters • abortion matters. Louise Perry is a writer, New Statesman columnist, and campaigner against male sexual violence. Her new book, The Case Against the Sexual Revolution, has sparked an international conversation about sex in the 21st century.