Prof. Hooven is an evolutionary biologist and the author of the awesome new book, T: The Story of Testosterone, the Hormone that Dominates and Divides Us. She’s a teaching star at Harvard and it’s easy to see why.You can listen to the episode right away in the audio player embedded above, or right below it you can click “Listen in podcast app” — which will connect you to the Dishcast feed. For three clips of my conversation with Carole — on how male horniness is increasingly shamed; on testosterone’s effect on crying; and on the ways in which T needs to be contained and channeled toward noble ends — head over to our YouTube page. We had a ton of reader response to last week’s episode with Bryan Caplan, the cheerleader for open borders. But first, here’s a reader reflection on our episode with feminist Julie Bindel, since it’s so relevant to the new episode with Carole Hooven:This American Life had an episode many years ago called “Testosterone”, partly about the story of a lesbian who once railed against the entire suite of male failings, including the sexualization of the male gaze. Then she transitioned to a man. Awash in testosterone, he recalled an incident walking past a hot woman on the sidewalk. A pitched battle erupted in his head: to look, or not to look. Unable to stop himself, he turned around to check out her cute ass. “I’m a pig, too!”, he wailed to himself.It’s an incredible TAL episode overall, also telling the story of a man who lost the ability to produce T and became deeply spiritual after the loss of all desire. Another reader recently recommended a book by Hooven’s mentor at Harvard:I just read a book by British primatologist Richard Wrangham, titled “The Goodness Paradox: The Strange Relationship Between Virtue and Violence in Human Evolution.” While the overall message of the book surrounds reductions in violence among humans, Wrangham discusses the roots of this reduction and how it ties to Domestication Syndrome. Part of this “syndrome” has the impact of making men less masculine — and more anatomically similar to females. As soon as I read that, I thought of the Dishcast. I’d love to hear Wrangham and you discuss the science behind this, and how it factors in to the gender identity issues we are grappling with as a society. His protégé, Hooven, unpacks those themes brilliantly in this week’s episode. Shifting over to Caplan, the reader reviews for his episode were the most mixed of any we’ve had yet. One reader appreciated the fiery debate as “a fulfilled promise to engage with radically different viewpoints than your own.” Another reader “enjoyed listening to your viewpoint as well as Bryan’s, and while I can’t say I agree completely with either of you, it was good to hear a civilized debate.” Another:I applaud your interest in engaging people with views the opposite of yours on a given issue, but I was just wholly unimpressed by Bryan Caplan. I am surprised he was so oft-requested by readers, as he just never once came across as a serious thinker on the matter. From start to finish, he just reminded me of that guy in your freshman dorm who’d endlessly (and unprovoked) argue on behalf of communism by regurgitating one-liners he’d committed to memory. On the other hand:I absolutely loved your episode with Bryan Caplan. It’s rare to have someone like him who gives his unvarnished viewed, backed by research, in plainspoken terms, no matter what. Easily my favorite conversation of yours. Thanks!A constructive bit of dissent:Professor Caplan seems to assume that the only people who would try to make use of open borders are those who are desperate to come to the United States and partake in and embrace our way of life. That may be true in a large number of cases, but the good professor, in his desire to provoke, remains oblivious to the idea that some may come in with a view toward doing the country great harm. Does 9/11 not ring a bell for him? To say nothing of the scope for espionage, industrial or othe