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In February 2000, Yahoo, Amazon, CNN, eBay, and Dell were knocked off the internet within days of each other. Authorities feared sophisticated cyber terrorism. The culprit was Michael Calce, a 15-year-old from the Montreal area who went by Mafiaboy. This episode starts with his childhood: his parents separated when he was five, and at six his father gave him a computer to fill the weekends at the condo. A machine that obeyed every command offered a kind of control his home life did not.
On February 7, 2000, he launched what he called Project Rivolta, flooding Yahoo with traffic from hijacked university and corporate computers and shutting it down for nearly an hour. The motive was a turf war: status for himself and his crew, TNT. The episode weighs his later claim that the attacks were an accident against the week-long timeline, then follows the chat room bragging that led to his arrest, his light sentence, and his later career as a security expert.
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Type the year 1900 into Microsoft Excel and it still treats it as a leap year. The error is deliberate, copied from Lotus 1-2-3 so that imported spreadsheets would not drift by a day. This episode traces how Mitch Kapor and Jonathan Sachs launched the program in 1983, outpacing a complacent VisiCalc with a spreadsheet, charting, and database package written in x86 assembly that wrote straight to the IBM PC's video memory and refreshed almost instantly.
Lotus became so central that buyers judged clone computers by one question: can it run Lotus? By 1987, one in four of the 15 million Americans using a computer at work used it, and its macros locked whole businesses in. Then came the missteps: a slow, bloated rewrite in C called Release 3, a refusal to take Windows seriously, and a 1995 sale to IBM that drew punishing retaliation from Microsoft. The program survived for 31 years, and its leap year bug outlived it.
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Linus Torvalds was named after both Nobel chemist Linus Pauling and the blanket-carrying kid from Peanuts, and this episode argues the pairing fits. Born in Helsinki in 1969 to journalist parents in Finland's Swedish-speaking minority, he started on a VIC-20 at age 11 and, because software was so hard to buy, taught himself to write machine code directly. After 11 months in the Finnish Navy as an artillery observer, he bought an Intel 386 clone in 1991 and began a kernel he described as just a hobby.
That hobby became the engine under Android phones, web servers, and smart thermostats. The episode follows the choices that made it possible: switching Linux to the GPLv2 license, refusing Steve Jobs when Apple asked him to drop Linux, and building Git in a matter of days in 2005 after the BitKeeper arrangement collapsed. It also covers the cost of his role as benevolent dictator, from years of abusive mailing list emails to his 2018 apology and time away.
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Chemist Leo Baekeland sold a new photographic paper to Eastman Kodak in a $750,000 buyout, with about $215,000 as his personal share. He never needed to work again. Instead he went back to the laboratory at his home in Yonkers, New York, to attack a supply problem. The booming electrical industry depended on shellac as an insulator, and shellac was scraped from tree branches in Asia, where it was secreted by the lac insect. Baekeland set out to make a synthetic substitute from phenol and formaldehyde. His first result, a coating he called Novolac, was a commercial flop.
This episode follows what he did next. Others, including the German chemist Adolf von Baeyer in 1872, had heated the same two chemicals and gotten useless foam. Baekeland built an egg shaped iron pressure vessel he named the Bakelizer and cooked the mixture at about 150 degrees Celsius under pressure, so the gases could not escape. What came out was the first fully synthetic thermosetting plastic: hard, insoluble, electrically non-conductive, and impossible to melt again.
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In December 1978, in Atlanta, Georgia, MCA launched a home video format called DiscoVision with Jaws as its first title. It arrived two years after VHS and four years before the audio CD, and it read a 12 inch disc with a laser. The earliest players used a glass tube filled with helium neon gas. Yet the format was analog: the microscopic pits and lands on the disc modulated a continuous wave, with light acting as a needle that never touched the surface. The result was 425 to 440 lines of resolution against roughly 240 for VHS, and no wear from playback.
This episode explains why a format so far ahead never won the American living room, and why it mattered anyway. Discs weighed half a pound, held at most 60 minutes per side, could not record television, and cost over $5 each to press when a VHS tape cost about $1. But LaserDisc gave film lovers frame by frame control, surround sound, and the first special editions, found devoted markets abroad, and funded the optical research that later formats relied on.
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In 1984, in Spokane, Washington, a bored Charlie Schmidt dressed his cat Fatso in a light blue infant's shirt, sat him at an Ensoniq Mirage keyboard, and worked the animal's paws from below while a VHS camcorder rolled. Then the tape went into a drawer. Schmidt did not upload it to YouTube until June 2007, under the title Charlie Schmidt's Cool Cat, and even then it drew little notice. The internet assumed the cat had died in 1987. Schmidt and his wife later corrected the record: Fatso, born in 1978, lived until about 1999, unaware of what was coming.
This episode traces how the clip became a fixture of online humor and then a legal test case. In early 2009, Brad O'Farrell of My Damn Channel got Schmidt's permission and attached the cat to the end of a blooper, titling it Play Him Off, Keyboard Cat. It worked like a vaudeville hook for any public failure, and hundreds of versions followed by May. Schmidt then recast the role with new cats, signed commercial deals, and went to court over who may profit from a meme.
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In the late 1990s, federal authorities persuaded a judge that an inmate named Kevin Mitnick could start a nuclear war by whistling tones into a prison pay phone. He spent eight months in solitary confinement on the strength of that fear. Mitnick was born in Los Angeles in 1963 and grew up in the San Fernando Valley, where amateur radio taught him that systems run on protocols and that protocols can be bent. At 12 he talked a bus driver into revealing where to buy the transit authority's ticket punch, then pulled unused transfer slips from dumpsters and rode the city for free.
This episode follows how that talent for persuasion, later named social engineering, carried him from a 1979 break-in at Digital Equipment Corporation to two and a half years as the country's most notorious digital fugitive. It covers his capture, the disproportionate punishment that made him a cause, and the pivot that turned him into a teacher for the same institutions that had hunted him. His career makes one argument above all: the weakest link in any system is the person at the keyboard.
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On May 24, 2024, an 18 year old rescue dog named Kabosu died of leukemia at home in Japan, stroked by the owner who had loved her for more than a decade. By then her face had been cast in bronze, wrapped around a NASCAR race car, and attached to a cryptocurrency worth billions. It began in 2010, when kindergarten teacher Atsuko Sato started a simple blog about her pets and posted a photo of her Shiba Inu on a couch, paws crossed, giving the camera an unreadable sideways glance. By 2013 it was the fourth most popular pet blog in Japan, and Sato had no idea what the wider internet was doing with the picture.
This episode traces how strangers built a fictional persona on top of a real animal. The misspelled word doge came from a 2005 Homestar Runner puppet cartoon, and the meme acquired strict rules: Comic Sans text in garish colors and a broken internal monologue of so, such, many, and wow. From there the image escaped the forums and ran into finance, advertising, politics, and war, while Sato went on living what she called an intentionally analog life.
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On March 19, 2007, a website called Justin.tv went live with a single product: Justin Kan. Funded by Paul Graham at Y Combinator and built with cofounders Emmett Shear, Michael Seibel, and Kyle Vogt, the site broadcast Kan's life around the clock from a webcam clipped to his baseball cap. Because nothing off the shelf could stream video from the street, Vogt bonded several EVDO cellular data cards through a Linux laptop that Kan carried in a hot, heavy backpack. The press compared it to The Truman Show, but the real novelty sat beside the video: a chat room Kan answered in real time.
This episode follows how that chat changed everything. Viewers quickly learned they could reach into Kan's life, sending police, firefighters, and unpaid pizzas to his door. The founders took the lesson that audiences wanted interaction, retired the backpack by the summer, and in October 2007 opened the network to anyone. What followed was a crash course in piracy, tragedy, and moderation, and then a discovery in the data that turned a chaotic experiment into a business Amazon bought for nearly a billion dollars.
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Betty Jean Jennings was born in Gentry County, Missouri, in 1924, the sixth of seven children of a farmer and schoolteacher. By 14 she was driving herself to high school in a neighboring town, and at 16 she graduated as salutatorian. In college she switched from journalism to mathematics after clashing with her advisor, and in 1945 she was the only student in her class to earn a math degree. The Army hired her as a human computer, calculating artillery trajectories by hand, and she soon applied to work on a secret machine called ENIAC.
This episode tells how she and five other women became its first programmers. Without security clearances, they were not allowed to see the computer, so they worked in empty classrooms and fraternity houses from circuit diagrams and interviews with the engineers. With co-lead Betty Holberton, she developed subroutines and nesting, then set the machine up by routing cables and flipping switches by hand. The story follows her from that triumph to decades of obscurity and a late, deserved recognition.
From the publisher's feed
pplpod is a podcast about people, places and lots of other stuff. Each episode takes a deep dive into the lives, choices, and legacies of fascinating figures from history, culture,…
Thoughtful, engaging, and story-driven, pplpod explores what makes these lives extraordinary—and what we can learn from them today.