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1. 

   25 Sep 2026 · 16 min

   The Haruhi problem

   Get out your graphing calculators, because today's episode of Endless Thread is about a math problem. Specifically: wt(π1, . . . , πm) = m−1 ∑ i=1 wt(πi , πi+1) Now, pencils down. Stumped? So were mathematicians for decades. That is, until the equation was solved in a thread on 4Chan about watching the anime The Melancholy of Haruhi Suzumiya. Show notes: A lower bound on the length of the shortest superpattern (oeis.org) Sa-Shi-Su-Se-So: The Secret of Japanese Cooking Basics (Umami Insider) This content was originally created for audio. An auto-generated transcript is available on Apple…

2. 

   18 Sep 2026 · 33 min

   Keeping the Lights on at a Video Game Cafe in Southern Yemen

   Mo lives in Aden, an ancient city in southern Yemen. Built on a volcanic crater, it has castles and beaches set against mountains. It's beautiful. Like the rest of the country, it is also in the midst of an ongoing civil war. This summer, protests broke out over living conditions and basic services in the city -- like electricity, which can be shut off for 18 hours at a time. But despite these conditions, for the last five years, Mo has been fighting for a persistent dream of his –– a video game internet cafe for his neighborhood. This week on Endless Thread Ben and Amory tell the story of…

3. 

   11 Sep 2026 · 29 min

   Ear rumblers assemble!

   Ben can make a roaring, rumbling sound with his ears that no one else can hear. He never thought much about it — whether only he could do this, or whether everyone could do this — until he discovered a subreddit called Ear Rumblers Assemble: a whole community devoted to the mysterious and understudied ability to voluntarily tense one of the miniscule muscles in our ears. We go into Ben's ear with Dr. Anand Devaiah, and raise questions about how everyone experiences the world differently and the enduring mysteries of the human body. Show notes: r/earrumblersassemble ( Reddit ) Thanks to…

4. 

   4 Sep 2026 · 25 min

   Encore: Owl pursuits

   This episode was originally published on March 10, 2023. In 2022, freshmen at the University of North Carolina at Chapel Hill got a new neighbor: an owl. What wasn't clear was whether the owl was trying to befriend them, or catch them. Sometimes the owl seemed to be chasing students. Other times, it seemed to come in peace. A popular campus Instagram account reported that a woman had actually raised the owl herself. After she was spotted feeding it, the owl sightings stopped, much to the disappointment of students who'd come to consider it as a sort of mascot. Where had the owl come from,…

5. 

   28 Aug 2026 · 26 min

   Emily Kwong takes us to science camp

   Grab your telescopes because this week on Endless Thread Ben and NPR Short Wave host Emily Kwong take us down two science-related internet wormholes. First, Emily introduces us to the intergalactic world of astronaut fan fiction, starring the crew of the 2026 Artemis II moon mission. Then, Ben takes us through the r/Science discourse on a new LiDAR (Light Detection and Ranging) study mapping an ancient Amazonian civilization. Show notes: Short Wave (NPR) Between change and upgrade (Artemis II fan fiction, Wattpad) Scientists Uncover Hundreds of Hidden Structures Beneath The Amazon…

6. 

   14 Aug 2026 · 45 min

   Fruit of the Loom: Horn of Lies

   The brand Fruit of the Loom is almost ubiquitous in the world of underwear and casual wear. You have likely seen its logo, if not on your own body, on store racks or at least in ads. Now, in your mind's eye, picture it. What do you see? For years, countless people have been taking to the internet to share their memory of the Fruit of the Loom logo. A lot of them have the same memory – a basket, rather, a cornucopia of fruit. But they're all wrong. At least, Fruit of the Loom claims that is has never had a cornucopia in its logo and there is little concrete evidence to suggest that the brand…

7. 

   7 Aug 2026 · 29 min

   The internet is a perpetual stew

   This week on Endless Thread it's a producer takeover with Grace Tatter and Kalyani Saxena serving up some delicious online stories. First, Kalyani digs into why the internet is so hungry for perpetual stews (a stew that is simmered and added on to in perpetuity). Then, Grace dishes on a listener conundrum about whether salty Reddit posts are worse for us than sweet ones. Show notes: ZAQ_Makes' Stewtheus (TikTok) Want to try perpetual stew? Some tips for avoiding foodborne illness (NPR) r/GirlDinnerDiaries (Reddit) Does Venting Your Feelings Actually Help? (Greater Good Magazine) Endless…

8. 

   31 Jul 2026 · 24 min

   Teach us how to Dougie

   Long before TikTok dances, there was the Dougie. In 2010, Cali Swag District’s “Teach Me How to Dougie” went worldwide, and for the decade-plus since, people have been trying to learn the viral moves. More than 15 years later, a Korean TikTok creator went viral for doing the Dougie… badly. He claimed to be learning how to do the Dougie day-by-day – but his moves were so stiff and awkward, viewers from around the world – including Endless Thread producer Kalyani Saxena — were suspicious. Was @JBStarMax faking being bad at the Dougie? Kalyani presents her investigation to Ben and Amory. Show…

9. 

   24 Jul 2026 · 35 min

   The Lost Loophole

   Kurt Gödel was a genius mathematician and logician, considered by many scholars to be as influential as Aristotle. He was also buddies with fellow geniuses Albert Einstein and Oskar Morgenstern, the co-creator of Game Theory. In 1947, Gödel told Morgenstern and Einstein he had identified an inner contradiction in the U.S. Constitution while studying for his citizenship test: the type of loophole that could plunge the United States into a dictatorship not unlike the Nazi regime Gödel had escaped when he immigrated from Austria. So, what was the loophole? Over the years, everyone from…

10. 

    17 Jul 2026 · 38 min

    How to Dim the Sun, from Marketplace's How We Survive

    The climate crisis is escalating. We have to decarbonize our economy, but we’re moving too slowly. So, what’s the backup plan? This season of How We Survive is about engineering nature: large-scale interventions that could be our last hope. We’ll explore technology that could alter our weather patterns, transform our planet, and possibly save us all from the worst outcomes of the climate crisis. Or lead to catastrophic, unintended consequences. In this episode, host Amy Scott travels to the Bay Area to learn about a controversial solution to the climate crisis. It’s called solar…