Steven Rathje is a postdoc at New York University and an incoming assistant professor at Carnegie Mellon University. He studies the psychology of technology, which includes how people engage with a variety of digital tools, especially those with social implications. We talk about his work on what makes content go viral online and the consequences of AI chatbots that are more agreeable than maybe they ought to be. Along the way, we see how basic principles of psychology govern social life in these digital spaces, too.

A few things that come up:

• Lack of change in conspiracy beliefs over time (Uscinski et al., 2022)
• The psychology of virality (Rathje & Van Bavel, 2025)
• Testing the effects of AI sycophancy (Rathje et al., 2025)

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Greg Murphy studies the psychology of concepts. How do we use language to understand things, and how do we sort the world into categories? In our conversation, we consider what makes a category, why we love them, and where they steer us wrong.

Dr. Murphy released a book on this topic a few years ago: Categories We Live By
How We Classify Everyone and Everything

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Paul Eastwick and Eli Finkel are two social psychologists who study the gears and levers of romantic relationships. What do people find attractive in a partner? How do relationships evolve over time? And critically, do romantic movies get any of this stuff right?

Paul and Eli host the podcast, Love Factually, which dissects popular romantic films from the standpoint of behavioral science. What do they get wrong? What do they get right?

On the show this month, we talk about the podcast, how scientists can study something like human love, and why people don't quite know what they find attractive until they stumble upon it.

Also, at the end of the episode, I mention my print shop, Indispensable Letterpress. Check out the cards and posters I've been making using old technologies. Maybe even pick something up for a friend this holiday season? Be careful, though--your support will tell me that you approve of my obsession with the antiquated machines that fill my basement.

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Sara Grady studies the function of entertainment—why we watch, play, and listen to the media that fill our lives. She's an assistant professor of Communication at Ohio State University. In our conversation, we explore what entertainment actually does for us, what it means to connect with fictional characters, and how storytelling shapes our relationships and well-being. Sara also shares her path from film production to media psychology and why understanding stories only deepens their magic. 

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

David Broockman is a political scientist at UC Berkeley who digs into one of democracy’s core questions: can political messages really change minds? He’s spent his career running careful studies of persuasion, from door-to-door conversations to the effects of cable news, and testing whether the confident claims of political consultants actually hold up.

In our conversation, David shares the path that brought him into political science and the “credibility revolution” that reshaped how researchers study politics. We talk about what persuasion looks like in practice, why it’s so hard to predict which messages will work, and what his research reveals about the gap between political insiders’ instincts and what actually moves the needle.

Source for intro to government shutdowns:

• Politicians argue both sides of government shutdown | AP News
• A Brief History of U.S. Government Shutdowns
• That Time a Lawyer Invented the Government Shutdown - Government Executive

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Lulu Miller has done a lot of things and done them very well. She is currently the co-host of Radiolab and its family-friendly spinoff, Terrestrials. She also co-created Invisibilia with Alix Spiegel and wrote the beautiful book, Why Fish Don't Exist. In our conversation, I try to learn Lulu's secrets when it comes it sharing science across media. I've been a fan of her work for a long time, so it was great to get to talk with her!

(If you're here as a Radiolab fan, you should also check out my chat with Latif Nasser a couple of years ago.)

In the show, I mentioned a run of letterpress prints I did inspired by Lulu's book. You can get a print for yourself here and learn more about how they were made. Any sales feed back into the podcast.

You can find the rest of this summer's science communication podcast series here.

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Sarah McAnulty is a squid biologist and a science communicator. She's come up with all sorts of creative ways to bring science to the people, especially through local community engagement initiatives.

Learn more about Skype a Scientist: https://www.skypeascientist.com/

You can find the rest of this summer's science communication podcast series here.

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Joe Palca reported on science for NPR for years. He found his sweet spot, capturing people's interest and filling them in on curious new findings in just a few minutes. His path to this job wasn't all that direct, and in our conversation, he shares how he got there and what he's learned along the way.

Listen to his 2019 story on the "electric dipole moment": Scientists Studying EDM To Find Why Everything In The Universe Exists : NPR

You can find the rest of this summer's science communication podcast series here.

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Alison Fragale is an organizational psychologist who gives keynote talks and leads workshops outside academia. She talks frankly about what it takes to book speaking engagements, design powerful talks that make a difference, and juggle a speaking schedule with other commitments. She also just released a book -- Likable Badass: How Women Get the Success They Deserve.

You can find the rest of this summer's science communication podcast series here.

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.

Alex Dainis is a freelance science communicator and video producer. She's been making science videos on YouTube for years, including recent work for the American Chemical Society. In 2024, she was received an Award for Excellence in Science Communications from the National Academies of Science, Engineering, and Medicine and the Schmidt Foundation.

We talk about how she started down this road and decided to make it her full-time work after graduate school, including the challenges of freelancing while staying committed to high-quality content.

"Science is About How You Know" prints available here.

You can find the rest of this summer's science communication podcast series here.

For a transcript of this episode, visit this episode's page at: http://opinionsciencepodcast.com/episodes/

Learn more about Opinion Science at http://opinionsciencepodcast.com/ and follow @OpinionSciPod on Twitter.