Big Ideas

Dani Galvin is a body positivity advocate and mental health supporter, Evie Gardener is a public health researcher focused on inclusivity, and Kalpana Prasad is a performer and speech pathology student. They dive into the radical concept of 'fat joy', celebrating self-acceptance in a world often governed by body shame. Their conversations explore fashion as a liberating force, the challenges of academia, and the societal pressures surrounding body image. They advocate for joy over societal standards while discussing the complexities of weight loss drugs and the commercialization of body positivity.

Jaap de Roode, a biologist at Emory University and author of "Doctors by Nature," dives into the remarkable ways animals self-medicate. He shares astonishing stories of apes using leaves to dislodge worms and sparrows employing cigarette butts to ward off parasites. The conversation explores the intelligence behind these natural remedies and how they inspire advancements in agriculture and pharmaceuticals. Jaap also highlights the critical need for habitat conservation to protect these ingenious species and their healing practices.

Simon Longstaff, the Executive Director of The Ethics Centre, delves into the paradox of collaboration, revealing its potential to inspire creativity yet also lead to ethical pitfalls. He discusses historical perspectives where collaboration was vilified, especially during conflicts. The conversation emphasizes moral courage in the face of societal pressure and the dangers of conformity. Longstaff also explores the essential balance of diverse viewpoints to prevent groupthink and highlights how small, courageous actions can foster trust and drive meaningful change.

Food is essential to human life, but are we taking it for granted? Popular chef, writer and broadcaster Adam Liaw is an advocate for good food for everyone. He takes us on a journey through the history and science of food, and its place in our societies, economies and cultures throughout time, arguing that food should play a central role in government policy making.The 2025 Hugh Stretton Oration was recorded at the University of Adelaide on 14 May 2025.SpeakersAdam LiawCook, writer, broadcasterAlison CoatesProfessor of Human Nutrition, University of South Australia

Linda Jaivin, an expert on Chinese culture, and Sheila Fitzpatrick, a historian of the Soviet Union, dive into the legacies of Mao Zedong and Joseph Stalin. They explore the frightening similarities between these historical tyrants and contemporary leaders, like Trump. Discussion includes the cult-like admiration for Mao, the tumultuous Cultural Revolution, and how their influences resonate in today's politics, particularly in Russia and China. Personal stories of generational trauma linked to these regimes highlight the enduring impact of their authoritarian legacies.

Katie Kiss, a proud Kanju Biriwiti woman and Australia's National Aboriginal and Torres Strait Islander Social Justice Commissioner, joins Gail Mabo, daughter of the legendary Eddie Mabo. They discuss the legacy of the Mabo case, emphasizing the need for genuine recognition of Indigenous rights. The conversation dives into the systemic challenges faced by Indigenous communities, including calls for self-determination and truth-telling. They reflect on the impact of international human rights standards and advocate for stronger legal protections for Indigenous peoples in Australia.

John Higgs, a journalist and cultural historian, dives into the 60-year legacy of Doctor Who, revealing how it mirrors societal changes and adapts to cultural shifts. He shares moving anecdotes about the emotional connections fans have with the show's characters. Higgs explores the trickster archetype embodied by the Doctor and discusses its impact over the decades. The conversation also touches on the show's significance in shaping narratives and evolving personal identities through storytelling, celebrating its enduring appeal across generations.

Join acclaimed British author Jeanette Winterson, known for her groundbreaking works like '12 Bytes,' as she explores the fascinating connections between Mary Shelley's 'Frankenstein' and the rise of artificial intelligence. Delve into the ethical implications of creating life, questioning what it means to be human in an era dominated by AI. They discuss consciousness, the illusion of emotion, and the paradox of technological progress leading to time scarcity. Winterson engages listeners to reflect on creativity, identity, and the future of work in a rapidly changing world.

Join Tony Inder, a sixth-generation Merino wool farmer who now grazes sheep among solar panels, as he discusses the complexities of converting agricultural land for energy use. Andrew Bray, from the Australian Renewable Energy Alliance, highlights the necessity of community dialogue in the face of renewable energy expansion. Janine Young, the Energy and Water Ombudsman, emphasizes the need for transparency and fair benefits distribution. Together, they explore local concerns and opportunities for better engagement in Australia's energy transition.

Zachary Carter, a journalist and author known for his award-winning biography of Keynes, is joined by Nobel Prize-winning economist Paul Krugman. They dive into the transformative life of John Maynard Keynes, exploring his radical ideas on economic policy and his critiques of post-WWI agreements. Their discussion highlights Keynes's influential role in shaping modern economics, his innovative thoughts during the Bretton Woods Conference, and the tensions between liberal values and authoritarianism during the 1920s.