Ezekiel Quittner-Strom is a physician doing his residency in internal medicine at the University of Iowa. He and Robinson talk about sushi and almost nothing else.

Instagram: @robinsonerhardt

Justin Clarke-Doane is a professor of philosophy at Columbia University, where he works on the philosophy of mathematics, physics, and metaethics. He and Robinson discuss ice cream and Justin’s fantastic hair, along with less important topics, like philosophy and mathematics.  Instagram: @robinsonerhardt

Uncle Perry is Robinson’s uncle. They eat ice cream and talk about it while they eat it.

Instagram: @robinsonerhardt

Richard Kimberly Heck has been a professor of philosophy at Brown University since 2005, at which time they left their post at Harvard, where they had taught for over a decade. On the way to receiving their PhD in philosophy and linguistics at MIT, they studied at Duke and Oxford. While Professor Heck’s primary research focus has been logic and Frege, over the past few years they have shifted to the philosophy of sex and pornography. Among other topics, Robinson and Riki discuss this transition, along with the difficulties of studying pornography as an academic, the subject's aesthetic dimension, and the transformative power of queer pornography.  

Instagram: @robinsonerhardt

Abigail Biddle is a bodybuilder and law student at Duke University. She and Robinson talk about the trials and tribulations of dieting, weightlifting qua treatment modality for sexual assault survivors, how Abigail got boulder shoulders, the dangers of eating Taco Bell before a cross-country flight, and air fryer hacks.

Instagram: @robinsonerhardt

Ronnie is Robinson’s father. They talk about ketchup and how collecting creates order in a chaotic life.

Instagram: @robinsonerhardt

Ethan Hoppe is a violinist and technical sergeant in the United States Air Force. He studied violin at Northwestern and Yale before the pandemic changed the trajectory of his career. Robinson and Ethan talk about the surprising experience that was air force boot camp, and how different it was from the hardcore fitness retreat they had both naively expected it to be.

Instagram: @robinsonerhardt

Haim Gaifman is a philosopher and mathematician. He teaches at Columbia University in New York City. Robinson and Haim talk about vagueness, a branch of philosophy that deals with borderline phenomena like heaps and baldness. (Note that this interview was conducted in May of 2022, before the Supreme Court overturned Roe v. Wade, which is used as an example in the discussion.)

Instagram: @robinsonerhardt