Ideas

We all know that tastes change over place and time, but so do actual sensory tastes. And it doesn’t always happen by choice. Lenore Newman is a physicist and culinary geographer. She describes the end of the passenger pigeon as the preferred food bird and the rise of the chicken, and compares that transition to one we are facing now: the transition to lab-raised food. She calls this transition a ‘...

2026 CBC Massey Lecturer Leilani Farha believes the only way to really understand the housing crisis is to visit people in their homes. This fall, she’s been travelling the country doing exactly that. Ahead of the broadcast of her lectures, Housing Inc.: A Global Takeover and Our Fight for Home, she sits down with Nahlah Ayed to share excerpts from her conversations. 

Vimy, Dieppe and Normandy are places that hold profound and enduring meaning for many Canadians. But few have heard of Brunete, Teruel and Fuentes de Ebro — battles that saw Canadian volunteers facing Nazi bullets and bombs during the Spanish Civil War in the 1930s, just before the outbreak of the Second World War. In 1965, CBC researcher Mac Reynolds spoke with volunteers to understand why they d...

The current wave of anti-elitism and anti-urbanism we're seeing from authoritarian leaders and their followers may seem to have erupted out of nowhere. But for New Yorker writer and former CBC Massey Lecturer Adam Gopnik, what we see now stems from historic antisemitism. *This episode originally aired Feb. 18, 2025

The 2023 detainment in Russia of Wall Street Journal reporter Evan Gershkovich made international headlines. Two years post-release, he’s taken the story back in a book: This Cursed Beautiful Land. He discusses journalism, freedom and international law at the 2026 Graeme Gibson Talk, along with fellow writers Carol Off and Philippe Sands.

In the wake of the U.S. midterm elections, Kim Lane Scheppele is relieved that the electoral process ran smoothly. Yet she believes there is still reason to fear for the health of American democracy. She argues that not all government coups require long knives, tanks, kidnapped politicians, renegade army officers or even clear illegality. There’s such a thing as “constitutional” coup, says the Pri...

You likely have never heard of Matilda Joslyn Gage. Gloria Steinem calls her “the woman ahead of the women who were ahead of their time.” Matilda worked side by side with Susan B. Anthony and Elizabeth Cady Stanton to get women the vote in the United States and co-wrote the history of the women’s movement with them. IDEAS producer Dawna Dingwall looks into why the towering figure was erased by her...

For thousands of years, genetic inheritance was an observation in search of a theory. While some once thought of genetic code as fate, we now know that our genes are in a complex dance with each other and the world around us. Dr. Jehannine (J9) Austin, head of the department of medical genetics at the University of British Columbia, delivered the 2026 Boehm Lecture in Public Health and Healthcare,...

"What is good?" is at the heart of philosophy. Asking the question helps us move toward answers about inclusivity, equality, and who gets a voice at the table. Last year, The Munk School at the University of Toronto hosted philosophers and writers and put philosophy to the test. When it comes to the good, they asked, what good is philosophy? *This episode originally aired on Sept. 8, 2023.

In a world swirling with crisis upon crisis, historian Kevin Gannon contends that, even in our darkest days, hope persists. It might be far in the background sometimes, but it's always there. Gannon also argues that hope cannot exist without the oxymoronic twinning of love and rage.

Magician Harry Houdini crusaded against for-profit psychics and séances in the years before his death. He deplored the tools of his own art being used to exploit grief, says author David Jaher. Now those same tools are being used in politics, marketing, and scams, say psychologists Massimo Polidoro and Alice Pailhès.

"We are the monsters" — that's the premise for the genre of film known as body horror — movies that fixate on monstrous and grotesque changes to the body. There have been good body horror films and bad ones, but "The Fly" starring Jeff Goldblum and Geena Davis was perhaps the most consequential. The movie captured anxieties around bodily autonomy and physical decay, just as the AIDS epidemic was b...

Math may be the language of the universe, and brilliant minds and technology may have unlocked many of the secrets of the universe. But the pursuit of knowledge and insight always starts with the same thing: curiosity. Asimina Arvanitaki, a groundbreaking researcher with the Perimeter Institute for Theoretical Physics in Waterloo, Ont., reprises a talk she recently gave in her native Greece about...

Erik Satie’s music is everywhere: in advertisements, coffee shops, and elevators. His iconic compositions like Gymnopédies have been streamed millions of times and become staples of background music worldwide. But Satie’s relationship to "background music" goes far deeper than simply having a knack for writing it. Over a century ago, he began composing what he called "furniture music" – pieces des...

For most of human history there was one problem with our food: there wasn’t enough of it. But the food system we built to solve that problem — the one capable of feeding eight billion people — is responsible for a third of greenhouse gas emissions. It’s also made poor diet the leading cause of early death globally — ahead of smoking. Producer Mitchell Stuart spent a year asking: what should we be...

From the earliest days of cinema to our era of streaming, zooming, and scrolling, the screen has become a central part of our lives -- so central that it actually impedes our lives, erasing our bodies, and to hiding from one another. Kim Nelson, film professor and director of the Humanities Research Centre at the University of Windsor, argues in a public talk that remaining connected entails prote...

For more than a thousand years the Oracle of Delphi sat on a stool at the ‘navel of the universe.’ Under a mystical trance, she would offer cryptic predictions of the future. People would wait months, even years, for their chance to ask the Oracle for guidance on matters ranging from reproductive challenges, to family tiffs to when and how to wage war. While the ritual around her remains shrouded...

More than 2,000 years ago, someone sat down and wrote a travel bucket list for the ancient world — suggesting must-see places that we now call The Seven Wonders of the World. It was kind of a Lonely Planet guide of its time, and included the Pyramid of Giza, the Hanging Gardens of Babylon, the lighthouse of Alexandria, and the Temple of Artemis, among others. Historian Bettany Hughes brings monume...

Without the Moon, the Earth would be unrecognizable. Across the eons, it has shaped our seasons, our calendars — and even the evolution of life itself. Producer Annie Bender traces our nearest neighbour's powerful influence over humanity — and the planet we call home. Guests in this podcast: Charlie Duke is a retired NASA astronaut who walked on the Moon as part of the Apollo 16 mission. Rebecca B...

Authors Naomi Klein and Astra Taylor want to stop apocalyptic end-of-the-world thinking and its fantasies about colonizing other planets. “We love it here… we want to stay,” they say. They diagnose today's fascism as having an “Armageddon Industrial Complex,” whose main agents are apocalyptic fundamentalists, ethnonationalists, and tech billionaires fixated on creating a super-intelligence at any...

If you ask security expert and author Peter Lennox the answer is a resounding ‘yes.’ He argues Alberta separatism is less about Western alienation and more about a global effort to destroy liberal democracy. In his book, On Treason , Lennox says what’s unfolding in Alberta is part of a nefarious — and treasonous playbook that’s been used worldwide. To survive the threat, he suggests Canada must ca...

With a newly elected government in Quebec promising to turn the province into its own country, and another separatist party warning against ethno-nationalism, immigrants in the province are asked to consider their loyalties. IDEAS producer Tom Howell finds out why newcomers might want to join the movement to leave Canada and help forge Quebec's new national path. *Part two in a three-part series a...

There’s a place where people make hoppy beer, fresh sushi, and damn fine coffee. It's called Cascadia. The lifestyle is laid-back, the scenery is majestic, and they even have a flag. Where is it exactly? Think of it as an ecological region stretching from Alaska to B.C. through the Pacific Northwest to Northern California. Its national identity transcends borders, and is bound through culture, his...

Bureaucracies were created to get the work done and get it done efficiently, according to 19th-century thinker Max Weber. So why are there more and more meaningless executive jobs that contribute nothing but soak up the pay? IDEAS examines the corporate tendency to "bureaumania.” *This episode originally aired on Sept. 18, 2024.

Imagine seeing an atrocity with eyes wide open and then returning to a life that doesn't ask much about it. This is the experience of five Canadian doctors who have been offering urgent medical aid in Gaza for almost three years. But in Gaza, the absence of resources means often all they can do is bear witness. In this podcast, each doctor shares how what they experienced changed their lives. Gues...