Big Ideas

DNA testing has helped family history researchers fill in the blanks in their family trees. While that can be a good thing, it can also lead to unexpected consequences. From "non-parental events", to big data hacks, to unauthorised use of DNA in criminal investigations, this is everything you need to know about genetic genealogy.This event was recorded at the State Library of NSW for Family History Month 2025.SpeakersClaire Aird Journalist, presenter of the podcast series, Secrets We Keep: Should I Spit?Vanessa CassinEducation Manager, Society of Australian GenealogistsProfessor Tanya Evans Director of the Centre for Applied History, Macquarie UniversityPresident of the International Federation of Public HistoryAuthor, Family History, Historical Consciousness and Citizenship: A new social history and moreAdria Castellucci (host)Lead, Family History team, State Library of New South WalesFurther information:How a church-run DNA donation led Michael to be falsely accused of murder SBS News, 6 July 2025

How has the fossil fuel industry wielded influence over Australian governments and their policies? What does it take to make ambitious change in the public interest, without vested interests getting in way? Join Natasha Mitchell and guests at Adelaide Writers Week.Origninal broadcast on March 12, 2025.SpeakersDr Richard DennissEconomist and Executive Director of The Australia InstituteAuthor of BIG: The Role of the State in the Modern Economy (2022)Ross GarnautEconomistProfessor Emeritus in business and economics, University of MelbourneBoard director of renewable energy company ZEN ENERGYAuthor of Let's Tax Carbon: And other ideas for a better Australia (2024), Superpower: Australia's Low Carbon Opportunity (2019)Sarah Hanson-YoungSenator for South AustraliaGreens spokesperson for arts and communications, and environment and waterRoyce KurmelovsFreelance journalistAuthor of Slick: Australia's Toxic Relationship with Big Oil (2024)

Dr. Kaya Barry, cultural geographer and researcher, sheds light on the lives of seasonal PALM workers, revealing their yearning for permanence amid challenging conditions. Emma Vuetti, President of the Pacific Islands Council, highlights the social and economic impacts on communities, while Ken Dachi from Welcoming Australia discusses the integration challenges faced by these workers. Nunes Cosbar shares his personal journey from Timor-Leste, emphasizing the cultural richness and community spirit among workers, despite issues like wage theft and precarious living situations.

At face value, collaboration sounds like a good thing: collaboration in the classroom, with colleagues, or between nations. But throughout history, collaboration was not always considered a virtuous act, and those who were identified as collaborators were shunned, humiliated or worse. This talk explores how people justify their involvement in wrongdoing, and how, when collaboration devolves into conformity, it risks silencing dissent.This event was recorded at the Bundanon Art Museum.Original broadcast on July 28, 2025.SpeakerDr Simon Longstaff — Executive Director, The Ethics Centre

Your personal safety is big business, so much so that it’s given rise to “security capitalism”, a phenomenon where attempts to buy personal safety shape the world around us. As security becomes just another status symbol, do these gadgets make us safer or do they create a whole new list of anxieties – a self-fulfilling prophecy of perceived threat and risk aversion? This conversation 'Trapped: Does the security industry make us less safe?' was recorded at the CUNY Graduate Centre. Original broadcast on May 29, 2025.SpeakersMark MaguireProfessor of anthropology at Maynooth University, co-author, Trapped: Life Under Security Capitalism and How to Escape ItSetha LowProfessor of psychology, anthropology, earth and environmental sciences, and women's and gender studies at the CUNY Graduate Center, co-author, Trapped: Life Under Security Capitalism and How to Escape ItAlex Vitale (host)Professor of sociology and coordinator of the Policing and Social Justice Project at Brooklyn College and the CUNY Graduate Center

 "Homeric struggle", a desperate night-ballet, an ethical training ground for boys and men. Aussie Rules is a multimillion-dollar industry, but at its heart, to thousands of people, it's much more than that. Including to Australian literary great, Helen Garner.This event was recorded at the National Library of Australia on 20 February 2025.Original broadcast March 6, 2025.SpeakersHelen GarnerAuthor, The Season, Monkey Grip, The Children's Bach, The First Stone, Joe Cinque's Consolation, The Spare Room, This House of Grief and moreBeejay Silcox (host)Critic, writer, outgoing Artistic Director, Canberra Writers Festival

We’re past the brink of civilisational collapse. And many environmentalists are pushing a “fake green fairytale”. Jem Bendell’s arguments have inspired the Extinction Rebellion movement’s civil disobedience pushing for climate change action. But Jem doesn’t think protest is enough now. Find out why the self-confessed eco-libertarian and author of Breaking Together: A freedom-loving response to collapse thinks we should break together not apart. Jem joins Big Ideas host Natasha Mitchell at the 2024 Festival of Dangerous Ideas (FODI)Original broadcast on February 19, 2025.SpeakerJem Bendell Author, Breaking Together: A freedom-loving response to collapse (2023)Author, Deep Adaptation: A Map for Navigating Climate Tragedy (2018, 2020)Co-founder of Bekandze Farm - Regenerative Training CentreFounder, the Deep Adaptation ForumBand member, the Barefoot StarsEmeritus Professor of Sustainability Leadership, University of CumbriaSenior Distinguished Fellow, Schumacher Institute

We know them as Zuckerberg, Musk, Bezos, Gates, Jobs. But to Kara Swisher, they're Mark, Elon, Jeff, Bill, and Steve. She was once a Silicon Valley insider, but now she's one of big tech's most vocal critics.This event was recorded at Adelaide Writers Week on Monday 3 March 2025.Original broadcast on April 15, 2025.SpeakersKara SwisherAuthor, Burn Book: A Tech Love Story, aol.com: How Steve Case Beat Bill Gates, Nailed the Netheads and Made Millions in the War for the Web and There Must Be a Pony in Here Somewhere: The AOL Time Warner Debacle and the Quest for a Digital FutureHost of podcast On with Kara Swisher, and co-host of podcast, Pivot (with NYU Professor Scott Galloway)Former tech journalist with Washington Post, Wall Street Journal, contributing opinion editor New York TimesMarc Fennell (host)Host of new podcast, Noone saw it coming ABC Radio NationalCreator and host Stuff the British Stole ABC Radio National and ABC TVFormer host, Download this Show ABC Radio National

Imagine a world where your brain is enhanced through cutting-edge technologies and next-generation AI, blurring the lines between organic and digital realms … and unlocking unprecedented potential. We are already some steps on the way in such a future. What would this mean for intelligence, human agency and consciousness?Your Brain on AI From organoids to consciousness was presented by the Sydney Opera House.Original broadcast on February 11, 2025.SpeakersPaul DaviesTheoretical physicist, cosmologist, astrobiologist, Arizona State University and best-selling authorDr Inês HipólitoAssistant Professor of Philosophy of Artificial Intelligence, Macquarie UniversityDr Brett J. KaganChief Scientific Officer at Cortical LabsDr Sandra PeterDirector of  Sydney Executive Plus, Associate Professor the University of Sydney Business School

You've got half an hour with Lou Reed/ Nick Cave/ Courtney Love: what do you ask them? Three of Australia's best music writers share their craft, and reveal what it's like to sit down with some of music's biggest names.This event was recorded on 2 November 2024 at the Art Gallery of Ballarat.Original broadcast on January 23, 2025.SpeakersStuart Coupe Author, journalist, radio broadcaster, music commentator, publicist at Stuart Coupe PublicityJane Gazzo Music Journalist, TV Presenter, Author ( her new book is I Hear Motion), MC, Public Speaker, founder and presenter Action Time Vision - ATVMichael Dwyer Music journalist, lecturer and member of David Bowie ukulele tribute band The Thin White UkesZan Rowe (host) ABC Music correspondent, Double J and Take 5 hostFurther information:The exhibition From Medieval to Metal: The art & evolution of the guitar is on at the Art Gallery of Ballarat until 2 February 2024