The popular YouTube channel Lofi Girl provides a 24/7 livestream of chill beats to relax and study.

Endless Thread producer Nora Ruth Valerie Saks and co-host Ben Brock Johnson look at how the Lofi Girl phenomenon has expanded into a record company, inspired copycats, and prompted academic research.

On Discord and YouTube, hundreds of Gen-Zers are teaming up for the purposes finding and archiving the Muzak (aka elevator music) that played in the plaza and lobby and mall of the Twin Towers. 

On this 22nd anniversary of 9/11,  join Endless Thread in an episode where teens and young 20-somethings collect the seemingly innocuous sonic artifacts of the original World Trade Center people thought were lost and the lengths they've gone to find them.

The cover art for the 1976 paperback edition of Madeleine L'Engle's classic sci-fi/fantasy novel "A Wrinkle in Time" — featuring a rainbow-winged centaur and a green, glowering, red-eyed face — is iconic. And yet, for nearly 50 years, no one has known who illustrated it. Well, not NO ONE. Not anymore... Endless Thread cracks the case!

A Redditor proposed a quick fix to one of humanity’s greatest threats. But the real threat may be our fixation with quick fixes.

Credits: This episode was written and produced by Dean Russell. Mixing and sound design by Emily Jankowski. Amory Sivertson and Ben Brock Johnson are the co-hosts.

(Photo by George Rose/Getty Images)

As of late, Endless Thread co-host Ben Brock Johnson has been obsessed with a rock in Wyoming, a lot like the protagonist of Close Encounters of the Third Kind. But you won't find Ben in the kitchen, making a replica of the rock out of mud and chicken wire. Instead you'll find him and co-host Amory Sivertson in this episode, traversing Reddit and TikTok and YouTube and Wyoming to find out why hundreds of thousands of people have been drawn to a monolith that has so many names and meanings.

Two years ago, he didn’t even know slime molds existed. Now, he may be the internet’s most famous slime savant.

Co-hosts Amory Sivertson and Ben Brock Johnson take a walk in the park with Regular Slime Guy.

Credits: This episode was written and produced by Dean Russell. Mixing and sound design by Emily Jankowski. Amory Sivertson and Ben Brock Johnson are the co-hosts.

(Photo by Auscape/Universal Images Group via Getty Images)

"To avoid crowds, visit areas that are less crowded." These comically obvious, wise words come from the Twitter account — ahem, X account — of the National Park Service, who has been hitting it out of the park lately (get it?) with its social media content and reaping viral rewards. Who is behind this material? And why has a more than hundred year old government agency chosen to let its hair down on social media? 

Amory and Ben talk to the National Park Service's lone social media ranger, Matt Turner, and to Sarah Southerland from the Oklahoma Department of Wildlife Conservation, whose delightfully outrageous social media presence has captured the hearts and funny bones of hundreds of thousands of people. 

If there is an OG meme in which a human is the star, Scumbag Steve is it. He spread across the internet like wildfire in 2011 as a universal representation of dudes who are the worst. And, like any person grappling with immediate internet fame, Blake Boston — the man behind Scumbag Steve — tried to capitalize: merch, rap songs, public appearances.

But the full story of what happened to Blake — and his family — has never been told. The Scumbag Steve meme became a bargaining chip in a custody battle, a complicating factor in meeting his birth mother, the cause of fights with extended family members, a source of anxiety attacks, and an echo of trauma. In this episode, we go past the origin story of Scumbag Steve and learn about Blake’s real struggles with PTSD and abuse — and how trauma has brought him and his mother, Susan Boston, even closer. 

In times like these, you've got to take joy wherever and however you can get it. Amory and Ben swap unexpected sources of joy they've bumped into recently — from a goblin-themed Reddit post, to the scariest toe talons on the internet, to a funky 1980's little-known bop about going to the beach on Massachusetts' North Shore.

Imagine if an explosion in California was so loud that it could be heard in New York City. This is the story of a real event that was just as loud — the loudest sound ever recorded in human history.

This sound ripped across oceans in 1883, reaching people 3,000 miles away. Infrasonic pressure waves circled the globe four times. News of its destruction traveled through the early internet, the telegraph system, and altered the course of scientific history.

In this episode of Endless Thread, we recreate this magnum opus — a hotly debated darling of Reddit — with the help of scholars and infrasonic scientists.