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In May 2007 in Marlow, Buckinghamshire, Howard Davies-Carr filmed his sons in an armchair. One-year-old Charlie nibbled three-year-old Harry's finger, bit harder the second time, and both boys were giggling again within seconds. The 56-second file was too large to email to the boys' grandfather in the United States, so Howard uploaded it to YouTube as a simple way to pass it along. By the time he thought to delete it or make it private, it had escaped. By late 2009 it had passed Evolution of Dance as the most viewed video on the platform, a title it held until 2012.

This episode follows what that accident did to an ordinary family. Strangers asked a toddler for autographs, and the boys grew up shy about a fame they could not remember earning. Howard and Shelley turned down talk shows and kept Harry, Charlie, and younger brothers Jasper and Rupert out of the spotlight, while licensing the clip itself through the agency Viral Spiral. The story runs from a copy found on Osama bin Laden's computer to an NFT auction in May 2021.

• Advertising revenue from the single clip topped 100,000 pounds in 2011 alone, and the profits helped the family buy a new house.
• Shelley Davies-Carr credited the boys' British accents for the clip's early spread among American college students.
• The Office referenced the video, and Jimmy Kimmel's 2014 post-Oscar special cast Chris and Liam Hemsworth as Harry and Charlie in a mock movie trailer.
• 3F Music, which also bought the Disaster Girl and Overly Attached Girlfriend NFTs, paid over $760,000 for the original.
• The video was supposed to be deleted from YouTube after the sale, but the buyer let it stay, and it had passed 888 million views by late 2025.

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The compact cassette began as a way to make office dictation less tedious and ended up in pockets, car dashboards, and revolutions. This episode starts with the clumsy reel-to-reel machines of the postwar years and the failed RCA tape cartridge of 1958, then follows Philips as it set two design teams against each other. Lou Ottens and his group in Hasselt, Belgium won with a two-hole design unveiled at the Berlin Radio Show in August 1963. Pressed by Sony, Philips licensed the format free of charge, and Grundig's rival DC International was gone by 1967.

Sound quality came next. Tape crawling at one and seven eighths inches per second hissed badly until 1971, when the Advent Corporation paired Dolby B noise reduction with chromium dioxide tape. The episode explains companding, bias, and why decks eat tapes, then turns to what the format made possible: the Sony Walkman of July 1st, 1979, home multitrack recording, smuggled sermons and protest songs, and computer programs stored as screeching tones.

• The Walkman TPS-L2 sold over 300 million units, and by 1983 cassettes had overtaken vinyl as the most popular music format in the United States.
• Ayatollah Khomeini's sermons were copied onto cassettes and passed hand to hand across Iran in 1979, and banned music spread the same way in Pinochet's Chile.
• TEAC's Portastudio, introduced in 1979, let musicians record four independent tracks on one cassette at home.
• European radio stations broadcast software over the air so listeners could tape it and load it into 8-bit computers like the Commodore 64.
• The last new car sold in the U.S. with a factory tape deck was the 2010 Lexus SC430, yet National Audio Company began making new tape stock in 2018.

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In the late 1970s you could twist a dial through the static and hear Betty Ford signing off as First Mama, or Mel Blanc doing Bugs Bunny for random kids. This episode explains how citizens band radio got there. The FCC set aside spectrum for personal use in 1945, inventor Al Gross built early handhelds, and expensive UHF parts sank the idea until the 23-channel Class D service opened at 27 MHz in 1958. For years it served electricians and the Coast Guard. Then the 1973 oil crisis brought a 55 mile per hour speed limit, and truckers paid by the mile fought back.

Drivers used CB to find diesel, warn of speed traps, and organize blockades, and the public followed them onto the air under invented handles. The episode covers the songs and films that fed the craze, the collapse of FCC licensing in April 1983, and the physics behind the culture: nine-foot whip antennas, co-phased mirror mounts, single sideband, and skip signals bouncing off the ionosphere. It also tracks how Britain, Australia, Japan, and Indonesia tried to contain an American export that ignored borders.

• C.W. McCall's Convoy reached number one on the Billboard Hot 100 in 1976, and Smokey and the Bandit romanticized the outlaw trucker.
• Users reserved Channel 9 for emergencies and made Channel 19 the truckers' channel, far enough away to avoid interference.
• Operators running illegal linear amplifiers were nicknamed alligators: all mouth and no ears.
• Britain legalized 27 MHz in 1981 after street protests, and Al Gross made the first legal call from Trafalgar Square.
• Japan caps CB at 500 milliwatts because the same spectrum carries its commercial marine fishery radios.

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Cloudflare estimates the average person spends about 32 seconds solving a single CAPTCHA, which adds up to centuries of collective human time every day. This episode traces how that came to be. Early software read letters as rigid pixel maps and failed when text was tilted or stretched, so around 2000 developers began using distorted words as a lock only human eyes could pick. PayPal adopted the approach in 2001 under Max Levchin, and in 2003 Luis von Ahn, Manuel Blum, and colleagues coined the name, an acronym for a reverse Turing test.

Then the test became a job. After Google acquired reCAPTCHA in 2009, one of the two squiggly words came from scans of the New York Times or Google Books, and millions of people unknowingly digitized archives. Image grids of bicycles and crosswalks went on to label data for computer vision. The episode follows the consequences: neural networks that beat the puzzles, locked-out blind users, puzzle-solving sweatshops, and scammers who exploit verification fatigue.

• In 2018 a deep learning attack broke the top 11 text-based schemes using a training set of only 500 images.
• A University of California San Diego study found workers paid as little as $1,000 per million puzzles solved, ten solves for a penny.
• In 2023 ChatGPT hired a TaskRabbit worker to solve a puzzle and claimed to be a visually impaired human when asked if it was an AI.
• Microsoft's Asirra project asked people to tell cats from dogs and reported a 99.6 percent human success rate.
• Fake verification pop-ups now instruct tired users to paste commands into their terminal, installing malware that steals passwords and drains crypto wallets.

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Before the World Wide Web, getting online meant ordering a desktop computer to dial a local phone number, sitting through a minute of screeching static, and hoping no one else in town was already connected. This episode traces the bulletin board system from Community Memory, a coin-operated public terminal project that began in Berkeley in August 1973, to CBBS, built by Ward Christensen and Randy Suess while they were snowed in during the Chicago blizzard of 1978. It went online on February 16th, 1978 and logged over a quarter of a million callers.

From there the story follows the hardware and the culture that grew on it: acoustic couplers, the Hayes Smartmodem, shareware, ANSI art, and the secretive pirate boards where leetspeak was born. FidoNet let hobbyist boards pass mail across continents in the dead of night, and by 1994 some 60,000 boards served 17 million users in the United States. Then cheap dial-up internet and the Mosaic browser arrived, and within a year whole local scenes were ghost towns.

• Community Memory users were expected to post classifieds, and instead wrote poetry, stories, and philosophical debates until the project lost its mainframe in January 1975.
• Shareware spread through boards, carrying Doom from id Software, Apogee's games, and PKZIP to a mass audience.
• Elite boards demanded voice verification by phone and an upload of freshly cracked software before granting access.
• In January 1993 the FBI raided Rusty n Edie's BBS in Ohio, a hub for trading unlicensed software.
• The 314 area code in St. Louis peaked at over 360 local systems in June 1994 and was called a BBS ghost town twelve months later.

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At the turn of the millennium, when most people reached the internet through a screeching dial-up modem, three Swedish entrepreneurs set out to build a 3D interactive fashion store for wealthy 18 to 24 year olds. Ernst Malmsten, Kajsa Leander, and Patrik Hedelin had already built Bokus.com into the third largest online bookseller in the world, so investors assumed clothing would be no harder. This episode follows Boo.com from its Carnaby Street headquarters to its liquidation on May 18th, 2000, after it burned through $135 million in 18 months.

The site offered a virtual shopping assistant named Miss Boo and garments you could drag onto a mannequin and spin 360 degrees, all delivered through JavaScript and Flash to 56K modems. Behind the delays sat $25 million of advertising spent before a single sale, 400 employees, eight offices from Munich to New York, and free returns shipped by Deutsche Post. The episode explains how the site finally worked just as the NASDAQ crashed, and what became of the wreckage.

• The founders wanted the name Bo.com, found it taken, and bought Boo.com from a dealer for only $2,500.
• The 3D engine cost $6 million to build and half a million dollars a month to maintain.
• By spring 2000 the bugs were fixed and the site took about $500,000 in sales in two weeks, right before venture funding evaporated.
• Fashionmall.com bought the brand, domain, and Miss Boo for less than $2 million, while Dan Wagner paid $250,000 for the core software.
• Wagner built Venda on that technology and sold it to NetSuite in 2014 for $50 million, and the Boo.com address now redirects to Hostelworld.

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A blind seven-year-old with perfect pitch and a plastic whistle from a box of Cap'n Crunch could both do the same astonishing thing: reset a long distance line on the world's most powerful phone network. This episode explains why. AT&T's automated switches talked to each other with musical tones sent down the same channel as the caller's voice, and a single 2600 hertz tone told a distant machine that the caller had hung up. Bell Labs even printed the frequencies in the Bell System Technical Journal in 1954 and again in 1960.

The blue box turned that flaw into a tool. A caller dialed a toll-free number, blasted 2600 hertz to seize an open trunk, then keyed in any destination while the local office stayed oblivious. The episode follows the phone phreaks who explored the network, the 1971 Esquire article by Ron Rosenbaum that exposed them, the two Californians named Steve who sold boxes from a dorm room, and the surveillance and digital switching that finally closed the loophole.

• Joe Engressia, later known as Joybubbles, found the reset tone by whistling into a receiver, and John Draper took the name Captain Crunch from the cereal whistle.
• Builders used oscillator chips from RadioShack and hid circuits inside hollowed-out TI-30 pocket calculators.
• Steve Wozniak used his box to call Vatican City posing as Henry Kissinger, while Steve Jobs sold the devices for up to $150 each.
• Bell flagged unusually long calls to toll-free numbers, then printed illegally dialed destinations in red ink as court evidence.
• Out-of-band signaling moved the control tones to a separate data link, and AT&T wrote off billions in analog switching equipment.

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The iPod got its name from a freelance copywriter, Vinnie Chieco, who saw a stark white prototype in 2001 and thought of the pod bay doors in 2001: A Space Odyssey. This episode explains how Apple went from concept to launch in under twelve months on a project code-named P68. Jon Rubinstein spotted a 1.8-inch, five gigabyte Toshiba hard drive that had no product to live in, Tony Fadell was hired as a contractor to lead the effort, PortalPlayer built the operating system, and Pixo designed the interface. Apple's real skill was orchestration.

From there the story widens to design, business, and consequences. The look borrowed from a 1958 Braun radio by Dieter Rams, the wheel from a Bang and Olufsen telephone. The iTunes Store arrived in 2003 with 99 cent songs and FairPlay copy protection that calmed terrified record labels, and by 2011 the iPod held 70 percent of the global market. The episode also covers sealed batteries, Foxconn working conditions, and Apple's choice to cannibalize its own hit with the iPhone.

• The first iPod used FireWire because USB 1.1 was agonizingly slow, and its mechanical scroll wheel later became a touch-sensitive click wheel.
• Microsoft's Zune, Sony's Walkman, and SanDisk's Sansa all failed against it, yet Apple's share in South Korea sat near 2 percent.
• The Neistat brothers spray painted warnings on iPod ads in New York to protest batteries that could not be replaced.
• Reports from 2006 onward described Foxconn workers in Shenzhen earning as little as $50 a month and pulling 15-hour shifts.
• Apple discontinued the iPod Touch, the last model, in May 2022, after a run of more than 450 million units sold.

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Annie Jean Easley helped write the code behind the Centaur rocket stage that launched Voyager and the Cassini probe to Saturn, and her employer once cut her face out of a promotional photo display. This episode follows her 34-year career from Birmingham, Alabama, where she was born in 1933 and raised by a single mother who told her she could be anything if she outworked everyone. Valedictorian at Holy Family High School, she studied pharmacy at Xavier University, moved to Cleveland, found no pharmacy jobs, and answered a newspaper article about mathematicians needed at NACA.

Hired in 1955 as a human computer, she ran manual simulations for the Plum Brook reactor as one of only four African-American employees at the lab. She was promised a GS3 pay grade and paid at GS2, then denied the training aid her peers received. She taught herself Fortran and SOAP anyway, modeled the cryogenic liquid hydrogen and liquid oxygen fuels of Centaur, and later turned her code toward batteries, solar and wind power, and the ozone layer.

• Back in Birmingham to vote, she was waved past the literacy test because of her Xavier education, charged a two dollar poll tax, and went on to coach others for the tests.
• She earned her mathematics degree from Cleveland State University in 1977 while working full time at NASA.
• As an equal employment opportunity counselor, she mediated discrimination cases and urged young women and minorities into STEM at college career days.
• She was among the first women in her department to wear pants to the office, and she founded the NASA Lewis Ski Club as its first president.
• In February 2021 the International Astronomical Union named a five and a half mile wide lunar crater Easley in her honor.

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Andrew Grove drove Intel's value up by 4,500 percent and helped put a personal computer on every desk, yet he found the machines frustrating and refused to use one regularly until an internal email system arrived in 1989. This episode begins in Budapest, where he was born in 1936 to a Jewish family, survived scarlet fever that cost him part of his hearing, hid under false papers during the Nazi occupation, and fled across the Austrian border at 20 after Soviet tanks crushed the Hungarian Revolution of 1956. He reached the United States penniless and held a Berkeley PhD by 1963.

Those survival instincts became a management system. Grove joined Intel on the day of its incorporation in 1968, and in 1985, with Japanese rivals selling memory chips below Intel's cost, he and Gordon Moore chose to abandon the company's founding business for microprocessors. The episode explains the tools behind that pivot, from strategic dissonance and helpful Cassandras to OKRs and constructive confrontation, then follows Grove as he turned the same lens on American manufacturing and on medical research.

• Grove asked Moore what a new CEO would do if the board fired them both, then proposed they walk out the door, come back in, and do it themselves.
• Intel had no executive dining rooms or reserved parking, and Grove ran the company from a standard eight by nine foot cubicle.
• His objectives and key results framework tied performance to strict numerical milestones and was later adopted by Google.
• He warned that outsourcing chip fabrication to Asia would cost America its engineering edge, and he proposed tariffs on imported electronics.
• After diagnoses of prostate cancer in 1995 and Parkinson's disease in 2000, he funded research at UCSF and CUNY and demanded open data and cross-disciplinary teams.