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Ideas

Ideas

By: CBC
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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.

Copyright © CBC 2026
Daily Social Sciences
Episodes
  • The best comedians in the U.S. are Canadians
    Jun 29 2026

    It's a statement comedian Martha Chaves stands by. 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. This conversation is part of the Provocations-IDEAS festival.


    Comedians in this episode:


    Debra McGrath is a comedian, writer, and director whose comedy bona fides (yes, bona fides — this is IDEAS) began with Second City Improv, and is best-known for roles in Little Mosque on the Prairie, Seven Little Monsters and Paradise Falls.


    Stewart Reynolds (aka Brittlestar) is a Stratford, Ontario-based comedian. His work has brought him to the White House, and to meeting the Prime Minister. And of late, he’s become the bestselling author of the book: The Subtle Art of Resistance: Lessons From Cats For Surviving Fascism.


    Martha Chaves has made many TV appearances including Just for Laughs, We’re Funny That Way Festival, and the Winnipeg Comedy Festival — and she’s often been heard on CBC's Laugh Out Loud, The Debaters, Because News — and now IDEAS!

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    54 mins
  • How 4 makes and breaks rules | The Greatest Numbers of All Time
    Jun 26 2026

    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 the number four helps us understand the world — both by making the rules, and by breaking them.


    More in the series:


    Listen to The Curse of 13

    Listen to 12 is Sublime

    Listen to 27 Club Lore

    Listen to The 33,000 Horsepower Gamechanger


    Guests in this episode:


    Joyce Perreault is an Ojibway Anishinaabe children's book author and elementary school teacher at Donald Ahmo School in Crane River, MB.


    Brian Katz is a composer, instrumentalist, improviser, and guitar instructor at University of Toronto and York University.


    Lauren Fink is a professor of cognitive neuroscience at McMaster University.


    Alex Fisher is a professor of musicology and area coordinator for early music at the University of British Columbia.


    Tyrone Ghaswala is an assistant professor teaching stream with the Centre for Education and Computing (CEMC) and an adjunct professor in the Pure Mathematics department at the University of Waterloo.

    Wenran Jiang is the founding director of the China Institute at the University of Alberta.

    Stephan Reuter is an associate professor for plasma physics and spectroscopy at the Engineering Physics Department of Polytechnique Montréal

    Sarah Hart is professor emerita of mathematics at Birkbeck College and author of "Once Upon a Prime: The Wondrous Connections between Mathematics and Literature."

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    54 mins
  • The 33,000 Horsepower Gamechanger | The Greatest Numbers of All Time
    Jun 25 2026

    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 process is underway with artificial intelligence — but are we the horses, or the steam engine? *This episode is part of our series, The Greatest Numbers of All Time.


    For more in the series:

    Listen to The Curse of 13

    Listen to 12 is Sublime

    Listen to 27 Club Lore

    Listen to How 4 Makes and Breaks Rules


    Guest in this episode:


    Stephanie Dick is a historian of mathematics, technology, computing, and AI, and an assistant professor at Simon Fraser University.

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    54 mins
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