Kathryn Paige Harden on How Genetics Shapes Human Behavior

Yascha Mounk and Paige Harden discuss twin studies, heritability research, and why genetic influence varies across different traits and populations. Kathryn Paige Harden is a professor in the Department of Psychology at the University of Texas at Austin, where she leads the Developmental Behavior Genetics lab and serves as Director of Clinical Training. Her latest book is Original Sin: On the Genetics of Vice, the Problem of Blame, and the Future of Forgiveness. In this week’s conversation, Yascha Mounk and Paige Harden discuss why twin studies reveal the substantial influence of genetics on human behavior, how genetic effects actually increase rather than decrease over a person’s lifetime, and why acknowledging genetic influences shouldn’t be seen as incompatible with progressive politics. Watch this conversation on our ⁠YouTube Channel⁠! If you have not yet signed up for our podcast, please do so now by following ⁠this link on your phone⁠. Email: leonora.barclay@persuasion.community Podcast production by Jack Shields and Leonora Barclay. Connect with us! ⁠Spotify⁠ | ⁠Apple⁠ | ⁠Google⁠ X: ⁠@Yascha_Mounk⁠ & ⁠@JoinPersuasion⁠ YouTube: ⁠Yascha Mounk⁠, ⁠Persuasion⁠ LinkedIn: ⁠Persuasion Community Learn more about your ad choices. Visit megaphone.fm/adchoices

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Kathryn Paige Harden on How Genetics Shapes Human Behavior is an episode from The Good Fight by Yascha Mounk.

This episode is 63:47 long.

This episode was published on May 30, 2026.

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