We tell our children unsettling fairy tales to teach them valuable lessons, but these Cautionary Tales are for the education of the grown ups – and they are all true. Tim Harford (Financial Times, BBC, author of “The Data Detective”) brings you stories of awful human error, tragic catastrophes, and hilarious fiascos. They'll delight you, scare you, but also make you wiser. New episodes every Friday.
In Tudor England, the line between mathematics and the mystic arts is vanishingly thin. Straddling both worlds is John Dee, a brilliant scholar and astrologer whose intellect grants him access to the highest circles of power. Dee navigates the politics of the court by making bold prophecies, which win him royal favour. But even correct predictions may come with a price - and laying claim to the future is a dangerous game. For a list of sources, see the show notes at timharford.comSee omnystudio.com/listener for privacy information.
08/05/2026 • 43:14
Mike Lynch was often lauded as Britain's answer to Bill Gates. Born into a working-class family, Lynch's incredible intellect and passion for computers led him to become a billionaire tech entrepreneur. But behind the scenes, Lynch was a bully who couldn't bear criticism and was prone to creative accounting. When computer giant Hewlett Packard bought his company, Autonomy, it triggered one of the biggest fraud scandals in Silicon Valley history. Tim talks to Katie Prescott, Technology Business Editor at The Times and author of the book The Curious Case of Mike Lynch, about the lessons we can take from a story no one could have predicted. For a list of sources see timharford.com See omnystudio.com/listener for privacy information.
01/05/2026 • 40:42
Dick and Mac are content with their lives: they enjoy making burgers by day and stargazing by night. Ray Kroc is a workaholic chasing success at any cost. When the brothers' relaxed approach to business collides with Kroc's ruthless ambition it will birth one of the world's best-known brands. This is the story of two very different approaches to making hamburgers - and two very different approaches to making money. For a full list of sources, see the show notes at timharford.comSee omnystudio.com/listener for privacy information.
24/04/2026 • 40:30
Tim is running the London Marathon on the 26th of April. To give him a week off to finish training, we're playing this running-themed classic from the archives. If you would like to donate to Teenage Cancer Trust, Tim's fundraising page is at tinyurl.com/HarfordMarathon - any support is very much appreciated. Until the 1960s, it was deemed too "dangerous" for women athletes to run distances longer than 200m - and a marathon would kill them, or leave them unable to have children. Rubbish, of course. But when Kathrine Switzer signed up for the 1967 Boston Marathon, it wasn't the distance that bothered her - it was the enraged race director trying to assault her. Thanks to pioneers like Kathrine, women have made huge strides in long distance running - and are now challenging the times of men in the very races they were banned from for so very long. See the show notes at timharford.comSee omnystudio.com/listener for privacy information.
17/04/2026 • 36:48
In 1860, police officer Robert O'Hara Burke plans an expedition to map the mysterious blank in the centre of Australia. Joining him is scientist William Wills, and a ragtag team of hires. Burke falls out with virtually everyone around him, and demonstrates an uncanny ability to make terrible choices - from the equipment he brings to the route he takes. But even as the mission unravels, one final, simple decision could still save him. For a full list of show notes, see timharford.com. See omnystudio.com/listener for privacy information.
10/04/2026 • 39:11
Millionaire-making tech start-ups are most often associated with Silicon Valley. But this software revolution begins on a woman’s kitchen table in rural Britain in the 1960s. Steve Shirley faced extraordinary odds. After escaping Nazi Germany as a child, she later encountered workplace discrimination and endured deep personal tragedy. But she persevered to build a business decades ahead of its time, creating opportunities for hundreds of women. Tim Harford is joined by Ben Walter, CEO of Chase for Business and host of The Unshakeables podcast, to explore the life, legacy and lessons of an overlooked titan of tech.See omnystudio.com/listener for privacy information.
07/04/2026 • 27:45
As the Victorian era dawns, modernisation erodes the old ways of life and poverty rises. In the unrest, an unlikely hero emerges, capturing the imagination of the countryside's working class. He claims to be the new Messiah, and promises a better future. Despite his unconventional appearance and strange claims, his message resonates with the people of Kent, many of whom are willing to follow him into bloody battle. For this Cautionary Conversation, Ian Breckon - author of Mad Tom's Rising: The Revolutionary Mystic Sir William Courtenay and the Last Battle Fought on English Soil - joins Tim to discuss a forgotten folk hero and the dangerous power of belief in desperate times. For a full list of show notes, see timharford.com. See omnystudio.com/listener for privacy information.
03/04/2026 • 43:42
In November 1979, Flight 901 departs New Zealand on a sightseeing journey over Antarctica, heading directly towards a volcano. When the plane vanishes, investigators are left with a mystery: how could a seasoned pilot miss a 12,000-foot peak? As they try to piece together the incident, conflicting stories emerge, key evidence disappears, and a troubling picture takes shape - one defined by human error, deceptive illusions, and the hunt for someone to blame. For a full list of show notes, see timharford.com. See omnystudio.com/listener for privacy information.
27/03/2026 • 39:36
This episode comes to you from the new podcast Drug Story, which investigates the origins, workings and cautionary tales behind today's medical interventions. In this episode, host Thomas Goetz investigates the rise of Xanax, a drug used to treat anxiety that has become one of the world's most counterfeited and abused drugs. What happens when a drug works too well, and how do we manage anxiety in an environment that seems to fuel it? Listen to Drug Story wherever you get your podcasts. This episode mentions death by suicide. If you are suffering emotional distress or having suicidal thoughts, support is available - for example, from the 988 Suicide & Crisis Lifeline in the US, or the Samaritans in the UK on 116 123.See omnystudio.com/listener for privacy information.
20/03/2026 • 46:28
Robert Propst is more than an inventor: he is a visionary, an innovator dreaming up how to make the perfect office workstation. When he reveals his bold design for a creative, flexible 'cockpit of tomorrow', he comes into conflict with the unyielding push for workplace efficiency. This clash of ideals will go on to shape our working lives forever. For a full list of show notes, see timharford.com. See omnystudio.com/listener for privacy information.
13/03/2026 • 41:29
In 1999, a series of bombs explode in Russian apartments, killing hundreds and spreading panic. No one knows who is behind it. But when one device is spotted before it detonates, troubling questions emerge. Was it really a bomb? Why is the country's security service changing its story? And why are the people who probe too closely turning up dead? Tim Harford is joined by Helena Merriman, host of new BBC podcast The History Bureau - Putin and the Apartment Bombs, which charts the mysterious events surrounding the rise of Vladimir Putin, and asks why the real story sometimes gets missed. For a full list of show notes, see timharford.com. See omnystudio.com/listener for privacy information.
06/03/2026 • 42:24
Donald Crowhurst is a brilliant inventor with a failing business. When he hears about the Golden Globe Race offering publicity and cash to the fastest to sail around the world, it feels like the perfect solution. Betting his business and his home on success, Crowhurst sets off in a high-tech trimaran. Soon, the brutal Southern Ocean starts to look too much for his boat. Alone at sea, under mounting pressure, Crowhurst has a bold idea. If he radios in the right coordinates, no one needs to know he’s not where he claims to be. WARNING: This episode discusses death by suicide. If you are suffering emotional distress or having suicidal thoughts, support is available - for example, from the 988 Suicide & Crisis Lifeline in the US, or the Samaritans in the UK on 116 123. For a full list of show notes, see timharford.com. See omnystudio.com/listener for privacy information.
27/02/2026 • 41:21
Who will be the first to sail non-stop around the world? In 1968, The Sunday Times announces a trophy and a cash prize for the winner, and the Golden Globe Race is on. Leading the charge are Robin Knox-Johnston, an old-fashioned British patriot, and Bernard Moitessier, an enigmatic French philosopher. As monstrous seas and deadly gales close in, the difference between victory and disaster will come down to just one word. For a full list of show notes, see timharford.comSee omnystudio.com/listener for privacy information.
20/02/2026 • 39:28
This episode comes to you from American Criminal, the true-crime history podcast that takes you inside the minds of some of America's most notorious outlaws, exploring the dark side of the American dream. In this series, host Jeremy Schwartz explores the scandal at the heart of the McDonald's Monopoly promotion. The chance to win a prize when you bought a burger was a massive marketing success, with McDonald's returning to the promotion for years. But what the company didn't know was that a man on the inside was rigging the competition and choosing the big winners himself. Find American Criminal wherever you get your podcasts.See omnystudio.com/listener for privacy information.
17/02/2026 • 40:42
Chris McKinlay is a good-looking, smart student at UCLA, but he can't seem to get a girlfriend. He's a computing expert, so why not use his technology prowess to supercharge his search for a soulmate? He starts building an army of bots and unleashes them into the world of online dating. Chris' search for love leads him to some unexpected places, and it might be teaching us all the wrong lessons about love. See the show notes at timharford.comSee omnystudio.com/listener for privacy information.
13/02/2026 • 42:27
In the final days of the Sixties, The Rolling Stones join forces with other rock legends to plan a free concert at Altamont Speedway that will rival Woodstock. The "bad boys of rock" don't have the warmest relationship with the police, so they choose another option for security: The Hells Angels. They're both anti-establishment, they're both counterculture: what could possibly go wrong? See the show notes at timharford.comSee omnystudio.com/listener for privacy information.
06/02/2026 • 39:08
Run by the charismatic Nicole Deadone, OneTaste billed itself as a sexual wellness startup celebrating the power of female orgasm. But behind the celebrity endorsements and promises of healing, lay a darker reality. When Bloomberg journalist Ellen Huet began to dig into the organisation, she uncovered financial, emotional and sexual exploitation of its members, many of whom would call the company a cult. Huet, author of Empire of Orgasm, joins Tim to discuss why we should beware people promising pleasure, and what we can learn from the rise and fall of OneTaste. This episode contains explicit content from the beginning, and is not suitable for children.See omnystudio.com/listener for privacy information.
30/01/2026 • 41:19
Tony Hsieh, the billionaire CEO of Zappos, is passionate about community. He pours his time, energy and fortune into building a network of like-minded people - first in Las Vegas, then Park City, Utah. But Tony's quest to build connection soon spirals into isolation, addiction and mistrust of those closest to him, revealing a contradictory truth about the pursuit of one of our most fundamental human needs.WARNING: This episode discusses death by suicide. If you are suffering emotional distress or having suicidal thoughts, support is available - for example, from the 988 Suicide & Crisis Lifeline in the US, or the Samaritans in the UK on 116 123See the show notes at timharford.comSee omnystudio.com/listener for privacy information.
23/01/2026 • 40:01
They say the company Zappos is harder to get into than Harvard. Zappos may sell shoes, but its mission is to deliver WOW through a fun-focused company culture, making it one of the most coveted places to work in America. At the centre is CEO Tony Hsieh, obsessed with the hunt for happiness and driven by increasingly bold - and strange - ideas about how to find it. See the show notes at timharford.com See omnystudio.com/listener for privacy information.
16/01/2026 • 38:30
The sewing machine was once thought to be an impossible invention. It was such a complicated contraption that it would take more than one inventor, with more than one good idea, to make it work. Each of these inventors, including the notorious Isaac Singer, wanted the credit (and the fortune that came with it) for themselves. And so began the sewing machine war: a mire of backstabbing, stealing and misogyny. See the show notes at timharford.comSee omnystudio.com/listener for privacy information.
09/01/2026 • 37:30
Claude Shannon was brilliant. He was the Einstein of computer science... only he loved "fritterin' away" his time building machines to play chess, solve Rubik's cubes and beat the house at roulette.If Shannon had worked more diligently - instead of juggling, riding a unicycle and abandoning project after project - would he have made an even greater contribution to human knowledge? Maybe... and maybe not. Are restlessness and "fritterin'" important parts of a rich and creative life?Read more about Tim's work at http://timharford.com/See omnystudio.com/listener for privacy information.
02/01/2026 • 37:20
Sherlock Holmes is known for approaching all mysteries with cool logic - and yet when his creator Sir Arthur Conan Doyle saw photographs taken by two young girls purporting to show real life fairies at play... he unwisely declared them genuine.How did Elsie and Frances fool so many people with their photography... and why did they keep the hoax going for decades?For a full list of sources go to timharford.comSee omnystudio.com/listener for privacy information.
26/12/2025 • 37:44
Playing board games and spending too much money are time-honored Christmas traditions, so to mark the festive season, Tim is joined by the creator of Magic: The Gathering - Richard Garfield - for a special Q&A about economics and game design.How should you go about building the perfect game? Why did the Magic trading card market crash? Why do so many people hate Monopoly? Plus, Richard has a bone to pick with Tim about a previous episode of Cautionary Questions. See omnystudio.com/listener for privacy information.
19/12/2025 • 47:33
A megaplant near the small village of Flixborough, England, is busy churning out a key ingredient of nylon 6, a material used in everything from stockings to toothbrushes to electronics. When a reactor vessel fails, the engineers improvise a quick-fix workaround, so the plant can keep up with demand. Before long, the temporary patch - a small, bent pipe - becomes a permanent part of the factory, and the people of Flixborough unknowingly drift towards disaster. For a full list of sources, see www.timharford.comSee omnystudio.com/listener for privacy information.
12/12/2025 • 38:30
At the start of the 20th century, Britain was slowly becoming a freer place for women. Young Grace Oakeshott seized every opportunity to learn and improve the world around her - though she found those opportunities frustratingly narrow. One day, she vanished suddenly, leaving behind only a pile of clothes on a beach. A hundred years later, the truth about Grace’s disappearance has finally come to light.See omnystudio.com/listener for privacy information.
05/12/2025 • 38:20
Ever wished you could be a fly on the wall while Cautionary Tales is being made? Now you can. We just launched the Cautionary Club - our new Patreon community for Cautionary Tales fans who want to go deeper. If you sign up before the end of the year, you’ll be a Cautionary Club Founding Member, and you'll be invited to join Tim and the producers in a live table read of an unreleased episode. This will be a rare chance for you to see how the stories we tell are developed in real time, hear the editorial suggestions, and ask your burning questions about Cautionary Tales. Founding Members will receive an invitation to the table read, which will be held early 2026. But that’s just the beginning. You’ll also receive:- two monthly bonus episodes- a members-only newsletter with sneak peeks of what’s coming up - behind-the-scenes chats and videos with Tim - the chance to vote on future episodes- early information on books and live events- ad-free listening to the entire archive and the opportunity to support the creation of the stories we tell on Cautionary Tales. Join by December 31, 2025 to lock in exclusive perks and be recognised as one of the original members of the Cautionary Club. Sign up at patreon.com/cautionaryclub.See omnystudio.com/listener for privacy information.
04/12/2025 • 01:41
In 1912, a fossil discovery shakes the scientific world. Piltdown Man is the elusive missing link between humans and their ape-like ancestors. Forty years later, a researcher at the Natural History Museum gets a chance to see the relic for himself and notices something isn't quite right. For a full list of sources see timharford.comSee omnystudio.com/listener for privacy information.
28/11/2025 • 38:56
Misinformation, double-dealing, character assassination - lobbyist Don Pearlman will stop at nothing to prevent the world from agreeing to cut carbon emissions. This arch disrupter, who works for fossil fuel companies and oil-producing nations, is determined that the climate talks in Kyoto, COP3, will fail. Will Don's tactics succeed, and what will it mean for the future of the planet? Tim is joined by playwright Joe Robertson to discuss Kyoto, the political thriller he and co-writer Joe Murphy based on 1997's international climate negotiations. Kyoto is currently on stage at the Lincoln Center in New York https://www.lct.org/shows/kyoto/See omnystudio.com/listener for privacy information.
21/11/2025 • 39:19
When Satanic Panic ripped through America, rock music was in the crosshairs. Could songs contain secret backwards messages urging children to take drugs and worship the devil? This special episode is from Twenty Thousand Hertz, a podcast all about the rich world of sound. Follow Twenty Thousand Hertz wherever you get your podcasts. https://www.20k.org/ This episode mentions death by suicide. If you are suffering emotional distress or having suicidal thoughts, support is available - for example, from the 988 Suicide & Crisis Lifeline in the US, or the Samaritans in the UK on 116 123See omnystudio.com/listener for privacy information.
18/11/2025 • 29:13
Forrest Fenn’s legendary treasure hunt ignites a nationwide obsession. The thrill of adventure, the promise of gold, and the call of the wild entice many seekers into the quest. Over time, excitement gives way to conspiracy and resentment, as treasure hunters stray into increasingly dangerous or aggressive interpretations of the clues. As the body count climbs, even Forrest begins to fear for his safety. For a full list of show notes see www.timharford.comSee omnystudio.com/listener for privacy information.
14/11/2025 • 40:42
