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Big Ideas

ABC Australia
Big Ideas
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  • Big Ideas

    40 years after Chernobyl we face a new nuclear risk — this time as a weapon of war

    23/04/2026 | 55 mins.
    The explosion of reactor number four at the Chernobyl Nuclear Power Plant is not only a story of the past. Right now, nuclear plants are weaponised in the Iran war. It happened in 2022 when Russian forces occupied the Chernobyl exclusion zone. A new way of weaponising nuclear power. What have we learned from the worst nuclear accident in history — and what have we failed to learn?
    This conversation was presented by the Royal Society of Arts (RSA) and the Ukrainian Institute London.
    Speakers
    Serhii PlokhyMykhailo S. Hrushevs'kyi Professor of Ukrainian History; Director, Ukrainian Research Institute at Harvard University
    Eglė RindzevičiūtėProfessor of Criminology and Sociology at Kingston University London
    Jonathon TurnbullAssistant Professor of Human Geography at Durham University
    Dr Sasha Dovzhyk (host)Writer, Curator and Head of INDEX: Institute for Documentation and Exchange (Lviv, Ukraine). Editor of the London Ukrainian Review
  • Big Ideas

    Is Trump a new Nero, Caligula, Caesar? Can the Roman Empire help us make sense of today's chaos? And other burning questions

    22/04/2026 | 59 mins.
    Is President Trump a new Nero, or a contemporary Caligula? The Roman Empire was full of merchants of chaos, power-hungry emperors, epic wars, backstabbing, betrayals — the whole horror show. And it was a time of civilisational scale change. As we grapple with a rewriting of the world order,  does Ancient Rome have lessons for us today — about the building and breaking of empires, or the rise and fall of autocrats? Or are these sorts of comparisons with the past fraught with complication? 
    Join Natasha Mitchell and guests at this Melbourne Museum event to coincide with the opening of the ROME: Empire, Power, People exhibition.
    Speakers
    Rhiannon EvansCo-host of the Emperors of Rome podcastAuthor, Utopia Antiqua: Readings of the Golden Age and decline at Rome (Routledge, 2007)Adjunct Associate Professor of Classics and Ancient HistoryLa Trobe University 
    Nick BisleyAuthor, Asian Crucible: Globalization, Geopolitics and the Contest for the Future (Bristol University Press, 2026); The Belt and Road Initiative and the Future of Regional Order in the Indo-Pacific (Rowman and Littlefield, 2020), Issues in 21st Century World Politics, 3rd Edition (Palgrave, 2017) and Great Powers in the Changing International Order (Lynne Rienner, 2012)Professor of International RelationsPro Vice-Chancellor ResearchLa Trobe University 
    Thanks to event producer Jennifer Brookings, Nick Marchand (Director of Global Engagement at Museums Victoria), and team the Melbourne Museum.
  • Big Ideas

    Australia's Broken Social Contract — Tahlia Isaac wants to protect women in prison

    21/04/2026 | 54 mins.
    What happens to a community when it punishes its most vulnerable instead of protecting them Drawing on her own story of addiction, imprisonment, and recovery, as well as her frontline work supporting women behind bars and post-release, Tahlia Issac challenges the "tough on crime" narrative. The typical incarcerated woman in Australia is First Nations, a mother, a survivor of violence, and imprisoned for a low-level offence. Locking her up doesn't make communities safer — it makes them more fragile.
    This is the 2025 International Women's Day Address at the National Press Club of Australia.
    Speakers
    Tahlia IsaacFounder and CEO of Project: herself with lived experience as a woman in prison
    Emma MacdonaldAssociate Editor or Her Canberra, an online media company, magazine, and community hub tailored specifically for women, and Canberra Convenor of Women in Media
  • Big Ideas

    Is Southeast Asia Australia's blind spot? — with Michael Wesley and Geoff Raby

    20/04/2026 | 53 mins.
    Australians love a holiday in Southeast Asia. But our proximity to this region also makes it key to our national security and prosperity. Yet Australia has hitched its security and foreign policy wagon to an increasingly unpredictable United States, while China asserts in dominance in our own backyard. So are we taking Southeast Asia for granted?
    This conversation was recorded at Readings Bookshop on 23 March 2026.
    Speakers
    Michael WesleyProfessor of International Relations and Deputy Vice Chancellor, Global Culture and Engagement, University of MelbourneFormer head of the Lowy Institute, former dean of ANU's College of Asia and the PacificAuthor, Blind spot: Southeast Asia and Australia's Future (Quarterly Essay # 101) and more
    Geoff RabyFormer Australian diplomat to China 2007 — 2011Author, Great Game On: The Contest for Central Asia and Global Supremacy and more
  • Big Ideas

    The future of the past — how artificial intelligence is changing history

    16/04/2026 | 54 mins.
    Artificial intelligence has been defined as a cluster of technologies of and for the future. But like most humans, AI is built using what has happened in the past — scraping behaviours, experiences and other data to shape its outputs. In this sense, AI is a new kind of historian — but operating without guardrails, ethics, or any sense of doubt.
    This annual lecture for the History Council of Victoria, Can I Help You? Recognising and Improving Artificial Intelligence as History Maker was recorded on 16 October 2025.
    Speakers
    Marnie Hughes-WarringtonBradley Distinguished Professor at the University of AdelaideCo-editor, History from Loss and The Routledge Companion to History and the Moving Image

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About Big Ideas

Your front row seat to big thinkers at the best live events, forums, and festivals. Feed your mind. Be provoked. One big idea at a time. Your brain will love you for it. We love hearing from you about the show or events you are planning. Get in touch! Email: [email protected] SMS line for ABC Radio National: 0418 226 576 Airs Monday to Thursday 8pm, repeated Tuesday to Friday 12pm, on ABC Radio National.
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