Ideas

Even when wars end, they go on — transforming the people who fought them, their families, and even society. A former war correspondent interviewed more than 200 veterans of all of Canada’s wars for an online oral history project by The Canadian War Museum. The focus is not so much on preserving memories of their combat experiences, but to reflect on what came after. *This is part one of a two-part series.

Look back about 3,000 years and you will find the playbook on authoritarianism remains pretty much the same as it is today. Back in the 5th century BCE, when Herodotus travelled the ancient world gathering stories, he became an expert in would-be tyrants. His tome, The History, shared vivid descriptions of autocratic and tyrannical rulers.

Herodotus was a rule breaker himself. He ignored Greek literary tradition and captured history as accurately as possible from a wide range of sources. One of his many prescient observations was how, given the right circumstances, a political strongman can emerge and seize control — a forewarning for us today. *This episode originally aired on Sept. 9, 2024.

For someone who died more than 2,400 years ago, Herodotus's voice is still very much alive. "He knows the way [a good story] can elevate but also corrupt and destroy our thinking," says professor Lindsay Mahon Rathnam in this IDEAS episode. The ancient Greek writer observed different cultures first-hand, while capturing the stories they share in an attempt to better understand how they came into being, and why they came into conflict with each other. *This episode originally aired on Oct. 16, 2023.

Political analyst Rachel Maddow and author/activist Rebecca Solnit are sharp observers of Trump 2.0. They both share a common ground: opposition to anti-democratic actions taken by the second administration of U.S. President Trump, and where those actions are taking America, if not the world. 

The two American writers spoke with Nahlah Ayed about the existential issues of this American moment, a public conversation hosted by the International Festival of Authors and PEN Canada. The onstage event, in front of a Toronto audience, was part of the 5th annual Graeme Gibson Talk in Toronto.

Physics has been full of astonishing discoveries over the past century. But they open up even bigger mysteries that scientists are working feverishly to explain. What is dark energy? And why is the expansion of the universe accelerating? 

In public talks at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, two prominent physicists – Sarah Shandera of Penn State University and Stanford University’s Savas Dimopoulos – discuss the breakthroughs of recent decades and what it will take to solve the most nettlesome mysteries that have deepened in their wake.

The true story of America is that it was built on a caste system comparable to India’s, says Pulitzer-prize-winning American journalist Isabel Wilkerson. The author argues that it's key to recognize the roots of the U.S. caste "structure" as she calls it, to understand why conflicts relating to race and class persist. Wilkerson delivered the 2025 Beatty Lecture at McGill University in Montreal.

There’s a burgeoning genre of fiction coming from Mexico — stories that merge socio-political history and the impact of drug-related violence with fantastical stories of eerie ghosts, zombies, and monstrous cannibals. IDEAS explores dozens of gothic, horror and crime fiction novels. *This episode is part of our ongoing series, IDEAS from the Trenches, about outstanding PhD scholars across the country. It originally aired on June 5, 2023.

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Even in some of the world’s sturdiest democracies, leaders are deliberately undermining courts to weaken checks on their power. In many cases, the justice system is being sidelined. How much damage has already been done? And how worried should we be about the future of democracies around the world?

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War criminals, Nazi fugitives, and a viable threat to American democracy — sounds like a classic page-turner but author and lawyer Philippe Sands isn't making this up. His book, 38 Londres Street is a retelling of legal history that probes the connections between former Nazi leaders and Chilean dictator Augusto Pinochet. The payoff isn’t just an intriguing read. For Sands, broad public engagement is key to the survival of hard-won systems of international justice.

Philippe Sands delivered the 3rd Annual Irving Abella Lecture at Massey College in October 2025.

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Indigenous Americans on European soil can be found throughout historical records, but historian Caroline Dodds Pennock says they have largely been ignored. In her book, On Savage Shores, she traces the history of Indigenous lives in Europe during the 1500s. The author told IDEAS host Nahlah Ayed about her research collecting evidence of the widespread Indigenous presence in Portugal, Spain, France, and England in the 100 years before Britain attempted to establish its first North American colony. *This episode originally aired on April 5, 2023.

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