Ideas

Thanks to AI, it's easier than ever to avoid reading books — but that convenience may come with a cost. IDEAS explores how our digital landscape, coupled with the decline of reading, is changing the way we think. *This episode originally aired on Feb. 19, 2026. If you like this episode, listen to our podcast with Geoffrey Hinton , the 'godfather of artificial intelligence' who says AI must develop...

If AI continues to develop without appropriate guardrails, a worst-case scenario could lead to human extinction, warns the 'godfather of artificial intelligence' Geoffrey Hinton. But the Nobel Prize winner has a solution: AI must foster 'maternal' instincts, empathy and kindness. Hinton tells host Nahlah Ayed that it's fairly inevitable AI will become smarter than humans, but if we could make it c...

Millions of people are using AI to “talk” to the dead. The phenomenon has left cyberpsychologist Elaine Kasket asking what happens when we rely on for-profit AI companies to help us manage something as deeply human as grief? And where’s the line between comfort and self-destruction? IDEAS features two episodes from the CBC Podcasts series Artificial Intimacy , exploring the promise and peril of ou...

Jeans are a quintessential fashion staple for the Canadian tuxedo — and a symbol of rebellion. But the world's most popular garment comes at an environmental cost. It takes around 7,500 litres of water to make a single pair of jeans. And that's not all. Fashion expert Pedro Mendes explores the 150-year history of jeans and the 'authenticity' they are supposed to represent. *This episode originally...

"Geometry is the cilantro of math. People are not neutral about it," says Jordan Ellenberg. The mathematician is aware not everyone loves math like he does. But his book is not about the kind of geometry some people feel intimidated by. It's about geometry as a way of thinking. As a method of reasoning and argument. And as a system for making sense of the world. *This episode originally aired on M...

If the house always wins, why do we play? This documentary asks experts and observers to reflect on the casino as reality and metaphor. Skill versus luck, attention and distraction, fortune paired with loss: the casino reflects us, individually and culturally, back to ourselves. *This episode originally aired on Nov. 21, 2019. Read: Machines of Chance: How casino culture plays with us

Brutalism has become the subject of architecture tours, a coffee-table art book darling, and a highly sought-after living environment. But concrete is a complicated material, both appreciated and demonized. IDEAS explores the implications of Brutalism’s 21st century hipster aesthetic in a world of housing challenges, environmental crisis, and economic polarization. *This episode originally aired o...

Bogs, marshes, and swamps have long been cast as toxic wastelands, from the dead marshes in Tolkien’s Lord of the Rings to the vegetal monster from the DC comic . But in fact wetlands store more carbon than forests. Experts argue wetlands are crucial to our future. It's time to rewrite this squelchy story. *This episode originally aired on Oct. 17, 2022.

Humans used fire as a tool. Now we fear its destruction. But we're responsible for changing the climate, argues John Vailliant, "in a way that favours fire way more than it favours us." The author unpacks how fire made humans who we are — and how humans are changing fire in his book, Fire Weather: The Making of a Beast . *This episode originally aired on May 29, 2024.

In 1989 the Canadian government was set to spring into action to address climate change. “If we don’t move now, it will be a disaster,” said then-Conservative environment minister Lucien Bouchard. “We are dealing with the survival of the species.” This podcast features David Suzuki’s prescient radio series, It’s a Matter of Survival from nearly four decades ago. It includes conversations with nota...

In 1989 David Suzuki hosted a radio series called “It’s A Matter of Survival,” which addressed the climate crisis head-on. He and other scientists look ahead 50 years into the future to paint a picture of what the world could be like if nothing is done to curb the human impact on climate change. The series galvanized the environmental movement in Canada, with more than 14,000 listeners writing let...

Oil has delivered warmth, mobility, freedom and ruin all at the same time. "It's a very hard religion to ditch," says Don Gillmor, author of On Oil . Yes, religion. Gillmor argues oil is not just a substance — but an idea … one that has come to constitute its own potent system of belief. He joins Nahlah Ayed to discuss how oil became the one true global religion. Want to listen to more IDEAS ? Her...

When you're a historian and learn about Canada’s earliest reported ‘demon possession caused by witchcraft’ case, you dig right into the story. And that's what Mairi Cowan did. She's been investigating one of Quebec's weirdest true tales, and is finally able to piece together a detailed story of what happened. *This episode originally aired on Dec. 14, 2022. Mairi Cowan is the author of The Possess...

When Sir John Franklin set out to find the Northwest Passage in 1845, he never returned. From that mystery, began the stories. But why do we keep coming back to these Franklin stories? What do they say about us? And what does it mean today to seek a Northwest Passage? *This episode originally aired on April 19, 2022.

Nationalism doesn't have to mean extremism. It can mean celebration. IDEAS shares this 1992 award-winning documentary about "The Idea of Canada," which includes music compositions inspired by Glenn Gould. Composer Christos Hatzis discusses the relevance and meaning of how "Canada allows you to be patriotic." Credits: Composer Christos Hatzis Producer Steve Wadhams Audio engineers Laurence Ste...

At the surface, Bear is about a woman who develops a sexual relationship with a bear. And though the 1976 novel earned Marian Engel a Governor General's award, it's been largely forgotten. Contributor Melissa Gismondi explores its mystery, meaning and relevance today. *This episode originally aired on January 4, 2021.

Canada produces legendary comedians and comic actors who excel on the world stage. So why is Canada not known for comedy? Does it have something to do with our proximity to the U.S., the way there are so many Scottish comedians performing in England? Three comics discuss Canadian comedy and what Canada's profile would be on a dating app — as part of the Provocations-IDEAS festival. Comedians in th...

From the medicine wheel to the building blocks of DNA, the number four has represented structure and stability. But four is also a troublemaker: a portal to realms like the fourth dimension. Our series, The Greatest Numbers of All Time explores how four helps us understand the world — by making the rules, and by breaking them.  More in the series: Listen to The Curse of 13 Listen to 12 is Sub...

There is nothing random about featuring 33,000 in our number series. It's very powerful. So much so, that the number put millions of horses out of work. Inventor James Watt used “33,000 foot-pounds a minute" to measure the capabilities of a horse when trying to market his new and improved steam engine. The engine was a big success, saving horses from the drudgery of manual labour. Now, a similar p...

Twenty-seven can be a pivotal and tumultuous age. It’s held up as the year of peak performance in many sports and it's also seen as a cursed age for pop and rock stars, exemplified by the so-called 27 Club. Artists like Jimi Hendrix, Janis Joplin, Kurt Cobain and Amy Winehouse, all died at 27. As part of our series, The Greatest Numbers of All Time , IDEAS producer Chris Wodskou makes the case for...

Complete. Whole. Divine order. That's just the start of what makes the humble dozen extraordinary. It's one of only two numbers ever discovered in mathematics to be “sublime.” Twelve makes a number of appearances in pop culture, in religion, in non-fiction, everything from the 12 days of Christmas to the 12 people it takes to form a criminal jury. Still need convincing of 12’s perfection and indis...

Has there ever been a number more maligned in western culture than 13? So feared, it's got its own horror-film franchise. So infamously unlucky, a good many of us avoid it en masse. We've just blindly accepted its bad reputation. As part of our series, The Greatest Numbers of All Time , IDEAS explores where our irrational fear and uncomfortable feelings about 13 began. *All five episodes in our nu...

It's tempting to think suffering should be avoided at all costs, but moral suffering has its own distinct standing. It signals a moral conscience. Every day people consume real time violence, grief, war and genocide through screens and experience moral upending. Without a moral compass there’s no motivation to address necessary issues. Guests in this episode: Cynda Rushton is a nurse and a profess...

Former IDEAS writer-broadcaster David Cayley passed away at his home on Wednesday June 10, surrounded by family. To honour his legacy, we wanted to share part of a 2006 conversation David had with Irish philosopher Richard Kearney on the space for theism within atheism, and/or atheism within theism. Richard Kearney is a philosophy professor at Boston College and University College, Dublin. He has...

There may be no one alive who saw Houdini perform magic. Yet we still know his name and his legend. Dua Lipa namechecked the escape artist in a 2023 dance hit and she's not alone. Houdini is still a cultural reference point, despite having died 100 years ago. And that’s pretty much what he would have wanted. IDEAS explores why his name persists in our imaginations and how his magic helped his fami...