pplpod

A runaway trolley, five people on the tracks, a lever, and one person on the sidetrack. This episode unpacks why a simple thought experiment breaks our brains, starting with the clash between utilitarian outcomes and deontological rules, the dirty hands problem, and the surprising origin of the dilemma in Philippa Foot's 1967 analysis of abortion ethics and the doctrine of double effect, with the...

Juan Ponce de Leon never mentioned a magic fountain. His 1513 charter was about land, gold and power, so how did he become the poster child for the ultimate anti-aging quest? This episode traces the biography of an idea, beginning with the Epic of Gilgamesh and its plant of youth stolen by a snake, Herodotus and the violet-scented, zero-density waters of the long-lived Macrobians, and the Alexande...

The stubborn glass bottle at the diner hides four centuries of global history and some genuinely strange science. This episode traces the word ketchup back to a Fujian dialect term for the brine of pickled fish, follows it through Malay and Indonesian kecap sauces and a possible Arabic pickling lineage, and lands in 1680s England, where sailors reverse-engineered the flavor with oysters, walnuts a...

Horns, a lolling serpent tongue, one human foot and one cloven hoof, chains scraping the cobblestones and an empty basket for carrying children to hell. This episode tracks the biography of Krampus from the pagan Perchten of the Central and Eastern Alps, goat-like winter spirits whose wild processions the Catholic Church tried and failed to ban in remote mountain valleys, to his 16th-century rebra...

The knight who locks his wife in iron before riding to the Crusades is a complete historical illusion. This episode dismantles the medieval chastity belt, starting with the timeline: no credible evidence exists before the 15th century, over a hundred years after the last Middle Eastern crusade. The first blueprint appears in Konrad Kyeser's 1405 military manual Bellifortis, which historians like M...

In 2023 Canadian Delaney Irving won the women's race at Cooper's Hill and only found out when she woke up in the medical tent, having crossed the finish line unconscious. This episode digs into the physics of Brockworth's spring bank holiday tradition: a 50 percent gradient where running is impossible, uneven pasture full of rabbit holes, and a seven-to-nine-pound wheel of Double Gloucester in a w...

Forget global unity and pristine stadiums. The original Olympic Games were funerary rites turned religious spectacle, rooted in a founding myth where Pelops wins a bride by sabotaging a king's chariot with wax axle pins. This episode strips away the modern mythology to examine Olympia as a ghost town that filled every four years with pilgrims, flies, heat and the smoke of a hundred sacrificed oxen...

This is a biography of a 200-ton frigate whose peak fame lasted less than a year. Built around 1710 as the French privateer La Concorde, the ship was converted into a slaver operating out of Nantes before Edward Teach, better known as Blackbeard, captured it near Martinique on November 28, 1717, armed it with up to 40 cannons and renamed it the Queen Anne's Revenge. We explore the two theories beh...

Charles Darwin, blindfolded, smeared with tar and paint, shaved with a rusty iron hoop and tipped backwards into a tub of water: that was his 1832 equator crossing aboard the HMS Beagle. This episode explores the line-crossing ceremony, the centuries-old maritime initiation that divides a ship into uninitiated pollywogs and veteran shellbacks the moment it crosses the equator, and asks why isolate...

Imagine spending 43 years and your entire life on a building you know you will never see a quarter finished. This episode reads the biography of Antoni Gaudi through his magnum opus, the Sagrada Familia in Barcelona, beginning with bookseller Josep Maria Bocabella's plan for an expiatory temple funded only by donations, the original Gothic revival design by Francisco de Paula del Villar, and the 3...

On a Thanksgiving Day in Cincinnati, a professional marksman named Frank Butler put up a $100 bet and lost it to a 15-year-old, five-foot-tall girl in a handmade dress. This episode traces Annie Oakley from a childhood of extreme poverty in Ohio, including two years of abuse with a family she only ever called the wolves, to paying off her mother's mortgage through precision market hunting, marryin...

Coin-operated vending machines, automatic temple doors, a programmable self-driving cart and the first recorded steam engine all existed in first-century Roman Egypt, built by one man. This episode explores the life and work of Hero of Alexandria, a teacher at the Mouseion whose personal history is almost entirely unknown, but whose date was pinned down in the 1930s when Otto Neugebauer matched a...

For nearly 200 years visitors to the British Museum saw a black basalt slab, but a 1999 cleaning revealed the Rosetta Stone is actually sparkly grey granodiorite with a pink vein, blackened by chalk, carnauba wax and London smog. This episode tells the biography of that object, starting in 196 BC Memphis, where a decree honoring the 12-year-old king Ptolemy V was carved in hieroglyphs, Demotic and...

In January 2026 the Bulletin of the Atomic Scientists moved the Doomsday Clock to 85 seconds to midnight, the closest it has ever been in nearly 80 years. This episode traces the symbol from its 1947 origin among Manhattan Project scientists in Chicago, through the artist who set the first cover at seven minutes for purely aesthetic reasons, to the 1949 Soviet bomb test, the 1953 hydrogen bomb dro...

Frankie Lee Sims claimed a birthday that never existed, February 29, 1906, but the real story of this Texas bluesman is stranger and richer than any fabricated calendar date. Born in New Orleans in 1917 to two guitar-playing parents, with Texas Alexander as an uncle and Lightnin' Hopkins as a cousin, Sims learned from Little Hat Jones in Marshall, Texas, then ran away from home at 12 to work as a...

Ana Popovic grew up in 1990s Belgrade as Yugoslavia fractured, yet she became the first European nominated for Best New Artist Debut at the W.C. Handy Blues Awards. Her entry point into American blues was her father Milton's record collection, a sonic sanctuary in a turbulent time. By 15 she was playing guitar, by 1995 she had formed the band Hush, and by 1998 that band was playing over 100 shows...

On a porch in 1968, nursing an elbow injury from a horse fall, Duane Allman emptied a glass Coricidin cold medicine bottle, slid it over his ring finger and taught himself slide guitar in a single afternoon. Within a few years he was recognized worldwide as a master of the electric guitar, and by 24 he was gone. This episode traces the Nashville-born guitarist from the murder of his father in 1949...

Say the name Roy Rogers and most people picture the singing cowboy, but this episode is about the other Roy Rogers, born in Redding, California in 1950 and named after that cowboy, who became one of the most formidable modern masters of Delta blues slide guitar. We start with what slide playing physically demands: removing the frets from the equation, finding microtones by ear, and mimicking the w...

Irma Thomas recorded Time Is on My Side in 1964 as a B-side, then watched the Rolling Stones turn it into their first American top ten hit. Sixty years later, at the May 2024 New Orleans Jazz and Heritage Festival, she finally sang it as a duet with Mick Jagger. This episode follows the Soul Queen of New Orleans from a Baptist choir in Ponchatoula, Louisiana, through an audition at Specialty Recor...

Cream was built on a feud. Ginger Baker had once fired Jack Bruce from the Graham Bond Organisation, Bruce kept showing up anyway, and Baker eventually pulled a knife to force him out. So when Eric Clapton agreed to form a trio during a car ride in Baker's Rover in 1966, on the condition that Bruce play bass, Baker nearly crashed the car. This episode explores how three chemically incompatible mus...

In the late 1960s, a doctor's wife drove her teenage son from the Los Angeles suburbs to blues clubs in South Central and dropped him off to play guitar with touring legends. That teenager, Michael Leonard Mann, born in 1954, was so convincing on stage that Buddy Guy and Junior Wells gave him the name Hollywood Fats. This episode explains why a nickname from Chicago masters amounted to a baptism i...

Founded in 1939 at the Alabama Institute for the Negro Deaf and Blind in Talladega, the Blind Boys of Alabama survived the birth of rock and roll, the civil rights movement, the rise of hip hop and the digital age while never abandoning gospel. This episode begins with a faculty that forbade the boys from singing Black gospel, and the children who huddled around a radio in the dark memorizing the...

Walter Vinson wrote Sitting on Top of the World, a song inducted into the Grammy Hall of Fame and covered by folk, blues and rock legends, yet for more than 30 years after his death he lay in an unmarked grave in Alsip, Illinois. This episode of musical archaeology traces the Bolton, Mississippi native born in 1901 from early collaborations with Son Spand, Rubin Lacy and Papa Charlie McCoy to the...

Willie Lee Perryman, known as Piano Red and later Dr. Feelgood, was a visually impaired Black man in Jim Crow Atlanta who could not read sheet music, taught himself piano by ear, and worked days as a furniture upholsterer. Decades later, Paul McCartney, Mick Jagger, Keith Richards and Eric Clapton were making pilgrimages to see him play in an underground Atlanta saloon. This episode maps how a sel...

For 25 years Jimmy Yancey raked dirt and painted baselines as a groundskeeper for the Chicago White Sox at Comiskey Park. He also pioneered the boogie-woogie piano style, played Carnegie Hall in 1948, and was inducted into the Rock and Roll Hall of Fame in 1986 in the same class as Elvis Presley, Buddy Holly and Chuck Berry. This episode unpacks how a man who refused to enter a recording studio fo...