It’s the end of the year, and we’re counting down our Top 5 most-played episodes of 2019, which spanned parts of our second and (in-progress) third seasons.

Starting Monday, Dec. 16, and continuing each day through Friday, we’ll be putting one of our most popular episodes of the past 12 months back into your feed for your listening pleasure.

Maybe you missed it the first time around. Maybe you just want to hear it again and don’t feel like searching through your app. Or maybe you’re reading this and thinking, “Nah, I’m good” before clicking delete.

Whatever, mom. Dad’s still listening.

Anyway, this is No. 2, “On Math, Origami, and How No Discipline is an Island,” featuring Clare Kim and originally released May 16th. At the time we recorded, Clare was a doctoral candidate at MIT; she is now a postdoctoral fellow at Washington University in St. Louis.

Enjoy.