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Ideas

CBC·Hosted by Nahlah Ayed·241 episodes

SocietyCultureCBC public radioDaily ideasDocumentary essaysExpert interviews50-60 minWide-ranging topics

IDEAS is a place for people who like to think. If you value deep conversation and unexpected reveals, this show is for you. From the roots and rise of authoritarianism to near-death experiences to the history of toilets, no topic is off-limits. Hosted by Nahlah Ayed, we’re home to immersive documentaries and fascinating interviews with some of the most consequential thinkers of our time.With an award-winning team, our podcast has proud roots in its 60-year history with CBC Radio, exploring the IDEAS that make us who we are. New episodes drop Monday through Friday at 5pm ET.

Why listen

Ideas is for listeners who want public radio depth without being locked into one beat. Hosted by Nahlah Ayed, it moves between documentaries, lectures, interviews, and reported essays on politics, philosophy, science, history, literature, and culture. You might hear a traffic light treated as a moral puzzle one day and a deep dive into human rights, AI, Indigenous ecology, or celebrity the next.

Series(6)

Episodes

54 min
Jun 2, 2026
The time when a guest said, "I love you!"

That's not something you expect to hear in an interview. But the Harvard historian and author of All That She Carried, Tiya Miles did not hesitate to say these words to IDEAS host, Nahlah Ayed. What prompted the bold statement comes down to a question — seemingly for Miles the perfect one to ask.Their conversation resonated with many listeners, including a potter in Australia who shares how this story sustains him after the loss of his wife. Also in this podcast, we find out how IDEAS inspires everything from sonnets, to art, and to recreating historic feasts. *This is the second episode in our 60th anniversary series. It originally aired on Dec. 2, 2025.There's more to listen to here:How an IDEAS episode on traffic changed a doctor's practiceCBC Massey Lecturers reveal how the talks changed them How IDEAS saved a listener from sending a regrettable emailThe best — and worst — ideas of the last six decades

54 min
Jun 1, 2026
How an IDEAS episode on traffic changed a doctor's practice

Not many people like to think about traffic but Joanna Oda says this very topic on IDEAS in 2005 permanently changed the way she views medical care as a doctor. "It helped me understand how things that make sense for you as an individual contribute to a collective problem." She adds, the episode introduced her to the idea that one car has a big impact.This episode is the first episode in our special week-long series to mark our 60th anniversary. It originally aired on Dec. 1, 2025. Listen to other episodes in this series:The time when a guest said, "I love you!"CBC Massey Lecturers reveal how the talks changed themHow IDEAS saved a listener from sending a regrettable emailThe best — and worst — ideas of the last six decades

54 min
May 29, 2026
The most important numbers in the universe

Numbers get their due credit in this podcast. Even if we're not aware of them, numbers are essential to how we experience the world. IDEAS explores the most bizarre, surprising, mind-blowing and fundamental numbers in the universe.This panel discussion was recorded live at The Perimeter Institute for Theoretical Physics in Waterloo, Ontario.Guests in this episode:Asimina Arvanitaki is a particle physicist and the aristarchus chair in theoretical physics at the Perimeter Institute.Ben Webster is an associate professor in the pure mathematics department at the University of Waterloo, and he’s also an associate faculty member at the Perimeter Institute.Matthew Johnson is a professor of physics and astronomy at York University, and he's also an associate faculty member at the Perimeter Institute.

54 min
May 28, 2026
Can we have new pipelines and curb climate change, too?

For the past decade, Canadians have been split 50/50 on new pipelines — that's changed. Two recent opinion polls found roughly three quarters of eligible voters in Canada want at least one new pipeline built to export more fossil fuels. Yet, 70 per cent of people consider climate change a serious threat. IDEAS producer Tom Howell explores the incompatibilities and future scenarios. *This episode originally aired on Oct. 7, 2025.If you liked this episode, you may want to listen to this podcast: A machine that could save us from war — and global warming

54 min
May 27, 2026
How port cities like Alexandria shaped the world

Alexandria has been the source of invention, innovation, and beauty for millennia — capturing the imagination of Napoleon, the Prophet Muhammad and, of course, Alexander the Great. He envisioned a place that thrived on cultural, intellectual, economic, political and religious exchange. IDEAS examines the big ideas of this port city in Egypt with Islam Issa, author of Alexandria: The City That Changed the World.Part three in our ongoing series about how port cities shaped the world as we know it.Listen to Part Two: How port cities of Elmina shaped the worldListen to Part One: How port cities like Singapore shaped the world

54 min
May 26, 2026
The Billionaire Age Pt 2 | Disney heiress on the dangers of extreme wealth

If you inherited $120 million dollars, could you give away 75 per cent of your wealth? Abigail Disney did. She's an heiress to the Disney fortune. The philanthropist, filmmaker and activist offers an insider perspective into the twisted perils of extreme wealth — on society and the human psyche.Part two in a series called The Billionaire Age. Listen to Part One: How did we get here?*Please note: Part three will be available as a podcast on June 8 at 5 pm.Guest in this episode:Abigail E. Disney is an award-winning filmmaker, writer, philanthropist, and activist. Her films include The American Dream and Other Fairy Tales, the Emmy Award-winning The Armor of Light — both co-directed with Kathleen Hughes — and Pray the Devil Back to Hell. As a philanthropist and activist, she has championed peacebuilding, gender justice, and systemic cultural change.She is Chair and Co-Founder of Level Forward, an ecosystem of storytellers, entrepreneurs, and social change-makers dedicated to balancing artistic vision, social impact, and stakeholder return. She also founded Peace is Loud, a nonprofit that uses storytelling to advance social movements, and the Daphne Foundation, which supports organizations working for a more equitable, fair, and peaceful New York City.She is currently working on a book about wealth, power, and privilege.

54 min
May 26, 2026
The real reasons why more young women freeze their eggs

Egg freezing is considered a kind of "fertility insurance" for the future — a way to buy more time to make a decision about having a family. However, as IDEAS contributor Alison Motluk discovers, uncertainty around parenthood is just one of many reasons why egg freezing is one of the fastest-growing reproductive technologies in the world. She explores those reasons and digs into the social politics, gender realities, and big business of egg freezing.*This episode originally aired Oct. 22, 2025. If you liked this episode, you might want to listen to Birth gives us life. But do you know its history?

58 min
May 25, 2026
What does it mean for a river to be ‘alive’?

Renowned natural history writer Robert Macfarlane traveled to Ecuador, India and Quebec, pondering the question of whether rivers are living beings — the premise behind much of the movement to legally recognize the rights of nature. He found that the answer to that question is more complicated and wondrous — and more life-altering and world-changing — than he could have imagined. *This episode originally aired on Sept. 3, 2025.

54 min
May 22, 2026
Why there's no place like Oz

Even if you aren't a fan of Frank L. Baum's The Wonderful Wizard of Oz, you know about the Tin man, the ruby red shoes and that the dog is named Toto. The classic story was an instant bestseller in 1900 and its popularity is still going strong with not one but a two-part prequel. For over 125 years, there have been derivative works of Oz, from Broadway musicals, films, comic books and more. IDEAS follows the proverbial yellow brick road to uncover how this seemingly simple story of friendship, self reliance and longing for home continues to speak to us. *This episode originally aired on Sept. 9, 2025.If this episode has left you curious about Matilda Joslyn Gage, the suffragist who was a big influence on Frank L. Baum's feminism, listen to this podcast. There's a reason you likely have never heard of her.

54 min
May 21, 2026
Escaped slaves, pirates and 'free love' in ancient history?

Ancient history just got an upgrade. Forget the ruins, empires and great thinkers of the Classical period and make way for escaped slaves, subversive pirates, and freethinking religious sects. These nonconformist communities rejected hierarchy and political order in favour of creating a more equitable society.Author, religious scholar and historian Christopher Zeichmann offers an alternative lens on the Greco-Roman era in his book called Radical Antiquity: Free Love Zoroastrians, Farming Pirates, and Ancient Uprisings.

54 min
May 20, 2026
Why yellow traffic lights were designed to be ambiguous

The yellow traffic light is a perfect example of imperfection — with intention. While driving you have to think fast. Do you speed up or stop, whether that means easily or slamming on the brakes? Every driver has their answer and what lies in the middle is a vast perceptual field. A great deal of thought has gone into the engineering of the ambiguous yellow light, as IDEAS producer Seán Foley found out. He had his own encounter with what he was sure was the shortest yellow light in the world. It resulted in a traffic fine, and gave voice to so many questions.Guests featured in this podcast episode:Travis Stocking is a senior traffic analyst for Durham Region, OntarioAlfred Mele is a philosophy professor at Florida State UniversityRon Usher is a retired lawyer and IDEAS listener in Parksville, B.C.

54 min
May 19, 2026
What North Korea’s personality cult has to do with Jesus

North Korea is no place for evangelical Christians today. But when journalist Jonathan Cheng peeled back decades he found out Christianity is at the heart of the Kim family’s rise to power and continuing dynasty. Cheng has spent 15 years and two trips to North Korea to piece this all together. His book is called Korean Messiah.Jonathan Cheng is the China bureau chief for The Wall Street Journal, and was previously the Korea bureau chief, running coverage of the Korean peninsula, including politics and society in both North and South Korea.

54 min
May 18, 2026
Why laughter is so contagious

If you want to hear what a laughing rat sounds like this podcast is for you. From why the sound of laughter triggers us to join in, to how a laughing yoga class starts, to the difference between AHA and HAHA in science, IDEAS contributor Peter Brown takes us on a joyride to reveal the mystery of laugher. Will this podcast make you laugh? Most likely. But it's better than catching a cold. *This episode originally aired on Nov. 4, 2020.

54 min
May 15, 2026
He championed a radical dream — a 'United States of Africa'

Africa is a centre of world history — a fact that's been deliberately obscured, says journalist Howard W. French. In this talk based on his book, The Second Emancipation, he explores the surprisingly early seeds of 20th century Pan-African thought, and how Kwame Nkrumah of Ghana went from reluctant student to influential leader of a free Ghana.Howard W. French delivered the Black History Month lecture at University of Toronto's New College. French was is a former New York Times bureau chief based in Shanghai. He now teaches journalism at Columbia University and is also the author of Born in Blackness.

54 min
May 14, 2026
The origins of celebrity, from medieval divas to Kris Jenner

From Joan of Arc to Kim Kardashian, and Davy Crockett to Donald Trump, celebrity culture has deep and wide roots. Famous people who elicited Kardashian-level feelings of love and hate in the public were present centuries ago — long before screens and social media. Though, as we find out in this podcast, they all share similar qualities. *This episode originally aired on June 30, 2022.Irina Dumitrescu is a writer, co-host of the LRB podcast Encounters with Medieval Women, and a professor of Medieval English at the University of Bonn.Sharon Marcus is author of The Drama of Celebrity and the Orlando Harriman Professor of English and Comparative Literature at Columbia University.

54 min
May 13, 2026
Believe it or not, romance novels are more popular than ever

Heated Rivalry, Love is Blind or Boyfriend on Demand all underline the global appetite for passionate swooning. But let’s not forget the source for all of it: the romance novel. It may have a reputation problem but sales in 2023 reached 39 million copies or romance fiction globally — ringing in at $1.5 billion dollars. The books and readership continue to evolve as popularity increases. What is it about romance novels that women are drawn to? Is it unhealthy escapism, harmless fun or a kind of opiate? IDEAS looks back to a 1992 episode called Paperback Love to understand the enduring acclaim of romance novels.

54 min
May 12, 2026
How Canada forgot it once had a segregated health system

In the days before her medically-assisted death, journalist Elaine Dewar made it her mission to finish writing her book revealing ignored history. For more than three years, the author investigated how Canada's health care system cruelly mistreated Indigenous people — including forcing them to use segregated hospitals. Dewar's extensive research uncovers not only a shameful past, but that our collective obliviousness to it all was deliberately manufactured.

54 min
May 11, 2026Episode 2
What the River Wants to Be

For thousands of years, estuaries were central to Indigenous agriculture on the West Coast. Then, when colonists arrived, they diked many of these ecosystems to create western farmland. Now, Cowichan Tribes is working with a group of scientists and conservationists to restore an estuary as an ecosystem and a food system — and the project has sparked an unexpected controversy. At the heart of the debate are two questions. What does agriculture really mean? And when the waters start to rise, do we work with them, or against them?This is the second and final part of this series, What the River Wants to Be. Listen to Part One.Guests in this podcast:Tom Reid is the West Coast Conservation Manager for the Nature Trust of BC.Jared Qwustenuxun Williams is a passionate traditional foods chef who works with elders and knowledge holders to keep traditional food practices alive. Dr. Jennifer Grenz is a Nlaka’pamux scholar and a member of the Siil'na'mut Ken Elliott is a Cowichan elder and plant knowledge keeper who has worked in habitat restoration for decades. With his wife, he runs Ken Elliott's Native Plant Nursery.Nava Sachs is a graduate student at UBC conducting research with the Indigenous Ecology Lab.Kim Lagimodiere is the acting Marine Projects Manager at the Lulumexun Lands and Natural Resources department of Cowichan Tribes. She is also the coordinator of the S-hwuhwa'us Thi'lut Kw'atl'kwa (Thunderbird Protecting the Ocean) program.Dr. Bethany Coulthard is the acting director at the Lulumexun Lands and Natural Resources department of Cowichan Tribes.Dr. Lenore Newman is the Director of the Food and Agriculture Institute at the University of the Fraser Valley. Erica Gies is the author of Water Always Wins: Thriving in an Age of Drought and Deluge and an independent journalist who covers water, climate change, critters, and more from Victoria, British Columbia, and San Francisco, California.

54 min
May 8, 2026
Can abolishing all political parties topple fascism?

Simone Weil had a radical solution to end fascism that surged through Europe in the aftermath of the First World War: abolish political parties. She argued political parties were not democratic, they were dangerous. IDEAS producer Nicola Luksic explores the French philosopher's enduring insights to help us better understand the current political climate. *This episode originally aired on Oct. 20, 2025.Guests in this episode:Kathryn Lawson is a faculty fellow at Kings Universy College in Halifax, Nova Scotia.Scott Ritner is a political theorist and Simone Weil scholar. He teaches political science and first-year writing at the University of Colorado in Boulder.Michael Ignatieff is a professor of historical studies at the Central European University in Vienna. He was the head of the CEU when it was based in Budapest. Ignatieff is also the former leader of the Liberal Party of Canada and he led the official opposition in the House of Commons from 2008 to 2011.

54 min
May 7, 2026
How to measure 'prosperity'

It's safe to say right now the majority of us are feeling the pinch. Grocery and fuel prices are on the rise and the income gap between the wealthy, and everyone else, continues to grow. And yet, aside from the U.S., Canada is the strongest economy of the G7. A prosperous country doesn't necessarily translate to a fuller wallet for its citizens. Host Nahlah Ayed and panelists discuss how 'prosperity' should be defined and how that can be achieved.Guests in this episode:Hon. Lisa Raitt is a former Conservative cabinet minister, who now co-chairs the Canadian Coalition for a Better Future.Zita Cobb is a Fogo Island entrepreneur, founder of Shorefast which supports local economies and community development.Kaylie Tiessen is the chief economist at the Shield Institute.

54 min
May 6, 2026
What intellectual influencers teach us, one video at a time

A young generation of thinkers is trading in the bread and butter of social media branding — lifestyle, beauty, and consumption — for intellectual content. They focus on the big questions to help followers think about a world where they can't find jobs, are overloaded with debt, and see violence everywhere. It's the kind of education money can't buy.Guests in this episode:Isabella Segalovich (@interstellar_isabellar)Ahmad Sanhouri (@conflictechoes)Louisa Munch (@louisamunchtheory)

54 min
May 5, 2026
Could the Dust Bowl of the 30s happen again?

The Dirty Thirties might seem like the distant past but according to IDEAS contributor and professor Evan Fraser now is the time to heed the lessons about what worked to save farmers and agriculture. He argues the Dust Bowl should serve as a warning of compounding crises that lie ahead. But Fraser adds it also serves as a guide to solutions that could help us muddle through as the world lurches into another chapter of environmental, political and economic upheaval.Guests in this episode:Evan Fraser is a geography professor and director of Arrell Food Institute at the University of Guelph.Pamela Riney-Kehrberg is a distinguished professor of history at Iowa State University.Robert McLeman is a professor of geography and environmental studies at Wilfrid Laurier University.

54 min
May 4, 2026
Why the world feels like a shipwreck

What does an IDEAS producer do when he notices that shipwreck stories keep appearing in his life? He embarks on a journey to try and figure out what’s going on, why shipwrecks resonate today. Matthew Lazin-Ryder explores the history of shipwreck tales and how shipwrecks have not only been a mainstay trope in literature but also a constant metaphor in our lives. *This episode originally aired on Sept. 24, 2025.

54 min
May 4, 2026
Why the world feels like a shipwreck

What does an IDEAS producer do when he notices that shipwreck stories keep appearing in his life? He embarks on a journey to try and figure out what’s going on, why shipwrecks might be on people's minds. Matthew Lazin-Ryder dives into the history of shipwrecks — and how they are a constant metaphor in our lives. *This episode originally aired on Sept. 24, 2025. If you like this podcast, you might be interested in Matthew Lazin-Ryder's documentary The Never-ending Fall of Rome — a hole in time where he finds out politicians, activists, and intellectuals can dump any modern anxiety they wish.

54 min
May 1, 2026
Your tomatoes have a backstory and it’s not always pretty

In fact, author and journalist Marcello Di Cintio argues Canadians are complicit. After four years investigating the lives of migrant workers, he found that many temporary foreign workers are trapped working in precarious, exploitative conditions. These jobs are essential to our economy and society, yet invisible. Each migrant worker has a story to tell, says Di Cintio. He joined IDEAS host Nahlah Ayed on a visit through the tomato capital of Canada to hear their stories and talk about what his investigation reveals about Canada. *This episode originally aired on Dec. 11, 2025.Marcello Di Cintio's book is called Precarious: The Lives of Migrant Workers.

54 min
Apr 30, 2026
The 'shocking betrayal' of widespread antisemitism

Marsha Lederman is a child of Holocaust survivors. She lives with the fear that one day someone will take her and her son like the Nazis did with her parents and their parents. "This is ludicrous," she told herself many times. But then she saw how people celebrated the October 7th attacks and watched how antisemitism showed up in the circles she felt most at home.This spring to mark Holocaust Memorial Day, Lederman and child Holocaust survivor Jeanette Goldman shared their stories on Zoom at the University of Toronto's Regis College — an online event due to security reasons. They spoke about what true solidarity means today as antisemitism continues to rise in Canada. Lederman says: "We cannot allow antisemitism to stop us from speaking about antisemitism of all things."Guests in this episode:Jeanette Goldman is a retired federal judge and a child Holocaust survivor.Marsha Lederman is a journalist, daughter of Holocaust survivors, and author of Kiss the Red Stairs: The Holocaust Once Removed, and October 7th: Finding the Humanitarian Middle.Mary Jo Leddy is a Catholic theologian, author, activist, and founder of Romero House in Toronto.Bertha Yetman is a Regis College Alumnus, and organizer of “Remembering the Holocaust.”

54 min
Apr 29, 2026
How a feminist flipped the colonial travelogue on its head

In the 19th-century Pandita Ramabai travelled America delivering lectures on how the caste system and patriarchy shaped the trajectory of women’s lives. When she came back to her home India, the feminist explained America's customs around gender and race relations, and their experiment with democracy. IDEAS explores her rich life and legacy. *This episode originally aired on Sept. 10, 2025.Guests in this episode:Radha Vatsal is the author of No. 10 Doyers Street (March 2025), as well as the author of the Kitty Weeks mystery novels. Born and raised in Mumbai, India, she earned her Ph.D. in Film History from Duke University and has worked as a film curator, political speechwriter, and freelance journalist.Tarini Bhamburkar is a research affiliate at the University of Bristol. Her research explores cross-racial networks and international connections built by British and Indian women's feminist periodical press between 1880 and 1910, which sowed the seeds of the transnational Suffrage movement of the early 20th century.Sandeep Banerjee is an associate professor of English at McGill University and a scholar of Global Anglophone and World literature, with a focus on the literary and cultural worlds of colonial and postcolonial South Asia.Readings by Aparita Bhandari and Pete Morey.

54 min
Apr 27, 2026
The line between reasonable and unacceptable bias

This podcast is about testing the limits of fairness. It's about taking to heart the meaning behind "Beyond the Pale" — a phrase referring to ideas that are so outrageous it's impossible to deal with them in reasonable terms. Follow IDEAS producer Tom Howell as he covers uncomfortable terrain. When the time for ‘open-mindedness’ stops and prejudices become — possibly — a good thing. *This is the final episode in a series tackling the implications of bias. It originally aired on on June 8, 2022.Guests in this episode:Eduardo Mendieta is a philosophy professor at Pennsylvania State University. He edited the final book by Richard Rorty, Pragmatism as Anti-Authoritarianism.Barbara Kay is a columnist at The National Post and The Epoch Times.Misha Glouberman is co-author (with Sheila Heti) of The Chairs Are Where the People Go. He runs a negotiation course called How to Talk to People About Things.Rahim Mohamed is a freelance writer and college instructor at Centre College in Danville, Kentucky. His opinion columns are published in the online newsletter, The Line.Anne-Marie Pham is an executive director of the Canadian Centre for Diversity and Inclusion.Michael Bacon is a political theorist at Royal Holloway, University of London. His books include Pragmatism: An Introduction.Martin Zibauer is from the Cosburn Park Lawn Bowling Club in Toronto, Ontario.

54 min
Apr 24, 2026
What you should do when accused of being biased

All of us are biased. We have individual biases, momentary biases, morning biases and evening biases. Our institutions are biased. Our constitutions are biased. So what to do about it? IDEAS producer Tom Howell explores the art of naming your most important biases — and deciding which to keep, as he continues his investigation into what the field of ‘bias studies’ has to offer us. *This episode is part two of a three-part series exploring the meaning of 'bias.' It originally aired on Feb. 3, 2022.Guests in this episode:Olivier Sibony is the author of Noise: A Flaw in Human Judgment and You're About to Make a Terrible Mistake.Jessica Nordell is the author of The End of Bias: A Beginning.Jimmy Calanchini is assistant professor of psychology at University of California, Riverside.Jack Nagler was the ombudsman at the Canadian Broadcasting Corporation.

54 min
Apr 23, 2026
Defying haunting colonial history with literary imagination

Driftpile Cree poet Billy-Ray Belcourt's favourite place in the world is his mother's house. It's marked with a horrible, dark past — built for nuns who ran the local residential school in Northern Alberta. Belcourt grew up in the shadow of that school. But his mom drenched this home with love so powerful it surpassed the haunted context. Belcourt's mother's house provokes questions reconciliation couldn't quite answer: what does it mean to live inside history and how do you imagine your way out? In this lecture for Vancouver Island University’s Indigenous Speaker’s Series, he makes the case for literature as a more honest reckoning.

54 min
Apr 22, 2026Episode 1
What the River Wants to Be

Estuaries are a meeting of two worlds: the river and the sea. They’re incredibly fertile ecosystems that sustain 80 per cent of coastal fish and wildlife in British Columbia. For thousands of years, estuaries were central to Indigenous agriculture on parts of the West Coast. Then a new kind of agriculture arrived, profoundly altering the landscape. IDEAS visits the Cowichan Valley, where an ambitious project aims to restore an estuary — and to revitalize language, culture and traditional agriculture. *This is part one of a two-part series. Listen to Part Two.Guests in this podcast:Tom Reid is the West Coast Conservation Manager for the Nature Trust of BC.Jared Qwustenuxun Williams is a passionate traditional foods chef who works with elders and knowledge holders to keep traditional food practices alive.Dr. Jennifer Grenz is a Nlaka’pamux scholar and a member of the Lytton First Nation. She is the principal investigator at the Indigenous Ecology Lab at UBC.Siil'na'mut Ken Elliott is a Cowichan elder and plant knowledge keeper who has worked in habitat restoration for decades. With his wife, he runs Ken Elliott's Native Plant Nursery.Alyssa Zandvliet is a graduate student at Simon Fraser University conducting research with the Historical Ecological Research Lab at SFU and the Indigenous Ecology Lab at UBC.Kim Lagimodiere is the acting marine projects manager at the Lulumexun Lands and Natural Resources department of Cowichan Tribes. She is also the coordinator of the S-hwuhwa'us Thi'lut Kw'atl'kwa (Thunderbird Protecting the Ocean) program.

54 min
Apr 21, 2026
Will AI save us or damn us?

There are no two letters more disruptive in our time than AI. We’re told it will create employment yet take jobs away; invent life-saving medicines yet enable superviruses; solve the climate crisis yet deepen it. So will it save us or damn us? Is AI the ultimate disruptor?This conversation, moderated by Nahlah Ayed, was part of the 2026 Charles Bronfman’s “Conversations” series.Guests in this episode:Yoshua Bengio is a professor at Université de Montreal. He also has the distinction of being the most-cited living scientist in the world, in any discipline. He’s co-president and scientific director of LawZero, a nonprofit startup dedicated to creating safe AI systems. In 2018, he was a recipient of the Turing Award, often referred to as the Nobel Prize of Computer Science.Cory Doctorow is a novelist, journalist, technology activist and the author of an astonishing number of books, both nonfiction and fiction. Among them: Enshittification: Why Everything Suddenly Got Worse and What To Do About It. And the upcoming: The Reverse Centaur’s Guide to Life After AI.Astra Taylor is a documentary filmmaker, cofounder of the Debt Collective, and a writer. Among her books: Democracy May Not Exist But We’ll Miss It When It’s Gone, and The People’s Platform, which won the American Book Award. Taylor also delivered the 2023 CBC Massey Lectures called The Age of Insecurity: Coming Together as Things Fall Apart.

54 min
Apr 20, 2026
Are we 'born obsolete'? How technology makes us feel ashamed

Günther Anders predicted the exact technological crises we’re facing today... but 70 years ago. In his research he pointed to humans as suffering from something he called "Promethean Shame," the shame we feel when compared to our technological creations. IDEAS explores the uncanny relevance of Anders’ thoughts about technology — from the atomic bomb to artificial intelligence. *This episode originally aired on Sept. 4, 2025.

48 min
Apr 18, 2026
Weekend Listen | Changing Minds: Psilocybin, Medicine, and the Limits of the Law (via White Coat, Black Art)

On White Coat, Black Art, trusted ER doctor Brian Goldman brings you honest and surprising stories that can change your health and your life. Expect deep conversations with patients, families and colleagues that show you what is and isn't working in Canadian healthcare.“Pistol” Pete Pearson, a 76-year-old living with a terminal lung disease, says psilocybin-assisted therapy transformed his end-of-life distress after he accessed it outside the medical system. While psilocybin remains illegal in Canada, researchers including UHN psychiatrist Dr. Joshua Rosenblat are running government-funded trials exploring its potential for mood disorders. More episodes of White Coat, Black Art are available wherever you get your podcasts, and here: https://link.mgln.ai/WCBAxIDEAS

54 min
Apr 17, 2026
How to harness your own biases

It’s easy to admit to having biases, but much harder to pin down what they are, let alone figure out what to do about them. Nevertheless, IDEAS producer Tom Howell gives it his best shot. He looks into what the rewards might be, if we could name and identify our own most important biases.This episode is part one of a three-part series exploring the meaning of 'bias.' It originally aired on Sept. 7, 2021.

54 min
Apr 16, 2026
Is the two-state solution dead?

As a former negotiator of the Oslo Accords for Israel, British-Israeli author and analyst, Daniel Levy, has both a diagnosis and a prescription for the land he refers to as Palestine-Israel. He says the two-state solution is “spent” and argues we need new ideas about how Israelis and Palestinians can co-exist peacefully.

54 min
Apr 15, 2026
Science fiction isn't fact, no matter what Big Tech tells you

Some of the biggest minds behind AI may have you thinking a Terminator-like robot is coming for us. But literature professor Teresa Heffernan says tech giants have taken their readings of science fiction plots too far, and failed to provide strong evidence for grandiose claims that originated on the pages of science fiction. She argues there are many reasons to fear AI, but an android uprising isn’t one of them.Heffernan is a professor of English language and literature at Saint Mary’s University in Halifax. She delivered the 2026 Wiegand Memorial Foundation Lecture at the Jackman Humanities Institute | University of Toronto.

54 min
Apr 14, 2026
Work: Loving it, hating it, and getting through the shift

Aaron Williams has worked in fisheries, as a forest fighter and is currently an airport ramp agent. When he's not working, he's writing about work: the hard kind, requiring bodily energy and mental endurance. Physical labour has always been a part of his life. He grew up in a logging family. In this podcast, Williams talks about the challenges, rewards and changing realities of hard work.Aaron William's memoir is called The Last Logging Show: A Forest Family at the End of an Era (Harbour Publishing). The book received the 2025 Edna Staebler Award for Creative Non-Fiction. His public talk was recorded at the awards ceremony at Wilfred Laurier University in Waterloo, Ontario.

54 min
Apr 13, 2026
Confronting the escalating attacks on universities

The Trump administration has been targeting higher education for some time now — freezing grants and filing lawsuits against leading universities. But these threats are not limited to the U.S. and there are growing concerns about a potential spillover effect on Canadian campuses. In this podcast, host Nahlah Ayed speaks with three panelists to explore what's at stake with the politicized attacks on universities — and why it matters to all of us.This discussion was recorded in front of an audience at the Isabel Theatre in Toronto.Guests in this episode:Malinda S. Smith is an associate vice president research and a professor of political science at the University of Calgary. She is the co-editor of Nuances of Blackness in the Canadian Academy: Teaching, Learning, and Researching While Black.Randy Boyagoda is a novelist and professor of English at the University of Toronto, where he also serves as the university’s advisor on civil discourse, the first position of its kind in Canada.Davide Panagia is professor and chair of political science at UCLA, where his work bridges philosophy, media and democratic life. Before that, he held the Canada Research Chair in Cultural Studies at Trent University.

54 min
Apr 10, 2026
A machine that could save us from war — and global warming

How? Some scientists believe in the power of nuclear fusion. Environmentally, these machines would have the potential to meet our energy needs with zero carbon cost. But the other advantage is removing a significant motivation behind war — the control of energy sources. Think about it. The Middle East would look a lot different today. This podcast explores what the transition to fusion energy would entail from the challenges, the rewards and the risks.Guest in this episode:Mustafa Bahran is a physics professor at Carleton University in Ottawa. He came to Canada after his life in Yemen became too dangerous. There he founded the Yemeni Scientific Research Foundation and National Atomic Energy Commission.Greg Twinney is the the CEO of General Fusion.Mike Donaldson is senior vice president in technology development at General Fusion.Michael Mann is a climate scientist and director at the Penn Center for Science, Sustainability and the Media.JC Btaiche is founder and CEO of a nuclear fusion company called Fuse.

54 min
Apr 9, 2026
The complex legacy of the first European 'slave castle'

Elmina is a place in Ghana that poet Sarpong Osei Asamoah describes as a "two-sided wonder." A bustling, lively fishing town in contrast to the painful history of a 400 year old 'slave castle' — a UNESCO World Heritage site. Historically, it's considered 'ground zero' for global economic and racial injustice. This podcast takes you on a tour inside the dark and brutal past of the Elmina castle and through the vibrant town that's full of life.Guests in this episode:Philip Amoa-Mensah is an Elmina tour guide with more than 20 years of experience.Ato Quayson is chair of the department of African and African American studies and professor of English at Stanford University. He is the author of Oxford Street, Accra: City Life and the Itineraries of Transnationalism.Bayo Holsey is a professor of African American studies at Emory University. She is the author of Routes of Remembrance: Refashioning the Slave Trade in Ghana.Sarpong Osei Asamoah is a Ghanaian poet. His poetry includes At Elmina Castle, I Bleed.

54 min
Apr 8, 2026
Worst marriage ever! The story of Jason and Medea

The ancient Greek story of Jason and Medea starts as a love story and ends as a horror show — just the way the Greeks liked it. The met, fell in love, stole the magical golden fleece (a symbol of authority and kinship) and escaped like a primeval Bonnie and Clyde. Find out why one of our guests calls Jason "an absolute hypocritical pig of a husband" as IDEAS explores their turbulent relationship. *This episode originally aired on Sept.19, 2022.Guests in this episode:Edith Hall is a professor of Classics at Durham University.Florence Yoon is an assistant professor of Greek Language and Literature at the University of British Columbia.Rosie Wyles is a senior lecturer in Classical History and Literature at the University of Kent.James Clauss is a professor of Classics at the University of Washington.Lucy Jackson is an assistant professor of Classics and Ancient History at Durham University.Connor Heaney is a collections manager at the Ray & Diana Harryhausen Foundation in Edinburgh.Vanessa Harryhausen is Ray Harryhausen's daughter.Lyndsy Spence is the author of Cast a Diva: The Hidden Life of Maria Callas, published by The History Press.

54 min
Apr 7, 2026
How Stephen Lewis helped changed the world's mind about AIDS

"AIDS exacerbates and accentuates inequality," Stephen Lewis said in his final CBC Massey Lectures he delivered in 2005. Back then the willingness of the world’s richest countries to help in the HIV/AID crisis was in question. The former ambassador to the UN and Canadian political leader died March 31st at 88. He will be remembered for his unwavering efforts to bring international attention to the HIV pandemic in Africa — calling out Western governments and financial institutions. This podcast revisits Lewis's Massey Lectures and his overall message to make a difference."I thought I understood the way the world works. I don't. I'll devote every fibre of my body to defeating this viral contagion, but I cannot abide the willful inattention of so much of the international community. I cannot expunge from my mind the heartless indifference, the criminal neglect of the last decade [1995-2005], during which time countless people have gone to their graves, people who should still be walking the open savanna of Africa." — excerpt from Stephen Lewis in his 2005 CBC Massey Lectures.

54 min
Apr 6, 2026
Legends and facts of the shapeshifting Queen of Sheba

The Queen of Sheba is a holy figure to some; a demon in disguise to others. Her indelible presence has haunted religious scholars and fuelled nationalist visions in East Africa and Southern Arabia. IDEAS explores the many afterlives of the Queen of Sheba — and how ideas about gender and power have shifted in each retelling of her life.Guest in this episode:Shahla Haeri is a professor of anthropology and a former director of the Women's Studies Program at Boston University, and one of the pioneers of Iranian anthropology. Her books include Law of Desire: Temporary Marriage in Shi'i Iran, No Shame for the Sun: Lives of Professional Pakistani Women and The Unforgettable Queens of Islam: Succession, Authority, Gender.Jillian Stinchcomb is a director's visitor at the Institute for Advanced Study in Princeton, New Jersey working as a postdoctoral fellow in the "Interactive Histories, Co-Produced Communities: Judaism, Christianity, and Islam" project. In 2020, she defended her dissertation, "Remembering the Queen of Sheba in the First Millennium," a reception history of the Queen of Sheba across Jewish, Muslim, and Christian texts from the biblical to the early medieval period. She works with material in Hebrew, Aramaic, Arabic, Greek, Latin, and Ge'ez.Safia Aidid is an interdisciplinary historian of modern Africa and an assistant professor at the University of Toronto. Her research addresses anticolonial nationalism, territorial imaginations, borders, and state formation in the Horn of Africa, with a particular focus on modern Somalia and Ethiopia.Eyob Derillo is a reference specialist in the Reading Room of Africa and Asian Studies at the British Library, and previously served as curator for the library's Ethiopic and Ethiopian Collections. He is a Ph.D. student at the School of Oriental and African Studies, focusing on the history of Ethiopian magic.Yousra Ishaq is a director and producer in Yemen, facilitating local productions and coordinating multinational teams including international media outlets such as the BBC and PBS. In 2017, she co-founded the Yemen-based film foundation and production company, Comra Films.

54 min
Apr 3, 2026
The final days of Jesus as 'heard' by J.S. Bach

St. John Passion — the complex masterpiece by Johann Sebastian Bach tells the story of Jesus during his final days. It's a work that speaks to the heart of the Christian narrative, which itself lies at the heart of Western culture. Tafelmusik Chamber Choir Director Ivars Taurins and music broadcaster Robert Harris zoom in on the work from the conductor's perspective to show how the notes translate into meaning — at a level of detail we listeners rarely discern.

54 min
Apr 2, 2026
The ultimate to-do list for living a good life

The guided principles on this list are based on Jesuit Bernard Lonergan's philosophy. His thought will likely shape the world for centuries to come, according to John Dadosky who has studied and taught Lonergan’s work for decades. It’s a bold statement to make, but as he points out, Lonergan’s talking about YOU. The prolific thinker dedicated much of his life's work to understanding human consciousness. In this podcast, IDEAS explores how his insights can play a role in our every day lives.On our website: Five principles to lead a good life.

54 min
Apr 1, 2026
How Hitchcock's 'The Birds' speaks to 21st-century anxieties

The face we give to our monsters says much about our anxieties as a culture. But birds? Two classic works of 20th-century horror featured a violent avian army. This podcast looks at why a Daphne du Maurier short story, and the Alfred Hitchcock thriller inspired by it, imagined “The Birds” as humanity’s mortal enemy. Seeded with fears of technological overreach and environmental disaster, and terror at the rise of the violent irrational, our reality was anticipated. *This episode originally aired on Sept. 6, 2023.Guests in this episode:Lynn Kozak is an associate professor in history and classical studies at McGill University and editor of Scapegoat Carnivale's Tragic Trilogy.W. Scott Poole is a professor in the department of history at the College of Charleston. He is the author of Dark Carnivals: Modern Horror and the Origins of American Empire.Catherine Wynne is a reader in English, and an associate dean for Research and Enterprise at the University of Hull. Her most recent book is on the war artist, Lady Butler. She wrote about The Birds for The Conversation.

54 min
Mar 31, 2026
The Billionaire Age Pt 1 | How did we get here?

There are 19 centibillionaires and a growing list of 3,000 billionaires worldwide. So it might not surprise you that the richest one per cent possesses nearly half of the world’s wealth. History has never seen such an extreme concentration of wealth. Some economists argue the battle of the 21st century is between oligarchy and democracy. How did we get here? IDEAS begins a four-part documentary series The Billionaire Age.You can listen to part two of this series, here. *Please note: Part three will be available as a podcast on May 26, and part four on June 30. Guests in this episode:Ingrid Robeyns is a philosopher and economist. She is the chair in Ethics of Instutions at Utrecht University and the author of Limitarianism: The Case Against Extreme Wealth.Lucas Chancel is the co-director of The World Inequality Lab and a professor at the Paris School of Economics.Gabriel Zucman is also the co-director of The World Inequality Lab. He is a professor at the Paris School of Economics and the University of California, Berkeley.Nitin Bharti is an economist and lecturer at The University of Western Australia. He is the South and South Asia coordinator at the World Inequality Lab.Lars Osberg is an economics professor at Dalhousie University, in Halifax, Nova Scotia. His latest book is The Scandalous Rise of Inequality in Canada.Abigail Disney is an American film producer, philanthropist and social activist. She is a member of Patriotic Millionaires which advocates for higher taxes on the wealthy.Paul Krugman is an American economist and the winner of the 2008 Nobel Memorial Prize in Economic Sciences.Tim Wu is a Canadian/American legal scholar and a professor at Columbia Law School. He is also a contributing opinion writer at the New York Times. His latest book is The Age of Extraction: How Tech Platforms Conquered the Economy and Threaten Our Future Prosperity.Nick Hanauer is an American entrepreneur and venture capitalist. He co-authored his latest book with Joan Walsh and Donald Cohen, Corporate Bullsh*t: Exposing The Lies and Half-Truths that Protect Profit, Power and Wealth in America. And he hosts the podcast: Pitchfork Economics.Guido Alfani is a professor of economic history at Bocconi University, Milan, Italy. His latest book is As Gods Among Men: A History of the Rich in the West.

54 min
Mar 30, 2026
Why everything you thought about earthworms is wrong

Earthworms are supposed to be a sign of healthy soil. But they're actually an invasive species that can even damage forests. So have we been sold a lie about worms and soil? Not exactly. The relationship between the two depends on the context. And the way we garden — or farm — can make all the difference. IDEAS producer Annie Bender unearths the complicated truth about the not-so lowly earthworm.Guests in this episode:Joshua Steckley is a political ecologist, postdoctoral fellow at Carleton University and the author of The Nightcrawlers: A Story of Worms, Cows, and Cash in the Underground Bait Industry.Peter Groffman is a professor at the City University of New York Advanced Science Research Center and Brooklyn College, with research interests in ecosystem, soil, landscape and microbial ecology, with a focus on carbon and nitrogen dynamics.Mike McTavish is a conservation scientist at a rare Charitable Research Reserve in Cambridge, Ontario.Janet Browne is a historian of science and Darwin biographer, author of a two-volume set called Darwin: A Biography.

1 hr 2 min
Mar 27, 2026
Massey Lecture Part 5 | A human rights agenda for Canada

In more than 40 years on the front lines of international human rights Alex Neve has heard Canada described as ‘the land of human rights’ — and seen the profound ways Canada has failed to uphold universal human rights, both at home and abroad. In his final Massey Lecture, he lays out his vision for a way forward.