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Feed your mind. Be provoked. One big idea at a time. Your brain will love you for it. Grab your front row seat to the best live forums and festivals with Natasha Mitchell.

Big Ideas

Build more houses. That'll fix Australia's housing crisis won't it? If you listen to governments, you'd sure think so. Under the National Housing Accord, all governments have agreed to support a target of building 1.2 million new, well-located dwellings in 5 years. But will that increase housing affordability, availability, quality, security of tenure, and the growing gap between the haves and have-nots? What's missing from this picture?

Join Big Ideas host Natasha Mitchell at the 2025 National Housing Conference with guests debating the rhetoric, reality and policies around housing supply.

This event was organised by the Australian Housing and Urban Institute (AHURI), hosts of the National Housing Conference.

Speakers

David ReynondsChief Executive, Department of Housing and Urban DevelopmentGovernment of South Australia

Professor Rachel Ong ViforjLeading housing policy researcher and advisorJohn Curtin Distinguished Professor of EconomicsCurtin UniversityDr Tim WilliamsGlobal Practice Leader, CitiesFormer advisor to five consecutive UK housing ministersFormer CEO, Committee of SydneyArchitecture firm GrimshawHost, The Grimshaw podcast 

Further information

Productivity Commission report on housing construction productivity (2025)

The Economics of Housing Supply: key concepts and issues (August 2024)

The State of the Housing System 2025: National Housing Supply and Affordability Council's second annual report.

Housing policy reporting by ABC News

Housing research reports and analysis by the Australian Housing and Urban Research Institute (AHURI)

Housing analysis by the Grattan Institute

Fixing Australia's housing crisis — is increasing supply really a silver bullet?

Whitlam's dismissal and following double dissolution 50 years ago, was arguably the most tumultuous period in Australia's political and constitutional history. This political crisis raises key questions about constitutional change and the robustness of Australia's current democracy. What are the lessons? And could it happen again?

Presented at the National Archives of Australia

Speakers

Anne TwomeyProfessor Emerita of Constitutional Law at the University of Sydney Law School

Frank BongiornoProfessor of history, Australian National UniversityFrom 2026, Donald Horne Professor of History and Public Ideas and Director of the new Centre of Public Ideas at the University of Canberra 

Dr Brendan LimBarrister and author of Australia's Constitution after Whitlam

Paul Barclay (host)Broadcaster and former presenter of Big Ideas

Gough Whitlam's dismissal — why is it still relevant today?

In the 1930s, New Zealand-born, Cambridge educated Arthur Dale Trendall carved a niche for himself as the world's foremost expert in the study of ancient South Italian vase painting. How then, did he end up leading a crack team of code-breakers working in Melbourne to decipher Japanese messages for the Allies during the Second World War?

This lecture was recorded at Melbourne's Shrine of Remembrance in partnership with La Trobe University's Trendall Research Centre.

Speakers

Dr Gillian Shepherd — Director of the A.D. Trendall Research Centre for Ancient Mediterranean Studies, Senior Lecturer in Classics and Ancient History at La Trobe University

An intriguing story of art and espionage — how a classical scholar turned codebreaker during World War 2

When it was founded in 2015, openai — the company behind Chat GPT — had a mission to develop artificial intelligence tools that would benefit humanity. But somewhere along the way, that mission changed. While the use of AI in our daily lives is increasingly pervasive, the technology's toll on the environment, human rights, copyright, privacy and workers and resources in the global south is starting to mount. In her new book, leading AI reporter Karen Hao details the AI industry's pursuit of progress at any cost.

This conversation was recorded at RMIT University in partnership with Readings Bookshop on 5 September 2025.

Speakers

Karen Hao Author, Empire of AI: inside the reckless race for total domination, former Wall St Journal reporter, former senior AI editor at the MIT Technology Review, lead at the Pulitzer Centre's AI spotlight series, one of Time Magazine's Top 100 people in AI in 2025

Kobi Leins (host) Lawyer, academic, AI governance and digital ethics advisor, author, New War Technologies and International Law: The Legal Limits to Weaponising Nanomaterials

Empire of AI — Karen Hao goes inside the reckless race for total world domination

ABC Radio National's CITIZEN JURY takes hard, hot-button issues affecting a community — and places citizens at the centre of finding solutions. It's citizen-driven democracy in action!

Tasmanian salmon is on dinner plates across Australia. It's a 1.4 billion-dollar industry producing jobs for Tasmanians, and more than 70, 000 tonnes of fish annually — with plans for expansion. 

But salmon farming has also become a lightning-rod for locals concerned about its environmental impact — on water quality, wild species, and then there was the mass mortality event last summer which saw over 1 million salmon die and smelly fatty fishy globules wash up on local beaches. 

Join BIG IDEAS host and science journalist Natasha Mitchell in the historic town of Franklin in the Huon Valley with three Citizen jurors, two expert witnesses, and a live audience of passionate locals — including salmon workers and activists — as they listen, debate, and share solutions on this fraught issue.

CITIZEN JURORSJohn StanfieldLifelong recreational fisher in Tasmania, former army employee, now works in healthFounder, RecFishTas (Recreational Fishing in Tasmania) Facebook GroupPeter GrahamSculptor, former mining industry geologistSecretary, Port Huon Progress Association Lives near a salmon company's hatchery facilityDr Rayne AllinsonHistorian, former university academic, authorFirst-time environmental campaigner and state election candidate after mass salmon die-off polluted her local beach in 2025. Employed by newly elected MP Peter George's electoral office in 2025.

EXPERT WITNESSESProfessor Jeff RossSenior researcherFisheries and Aquaculture CentreInstitute of Marine & Antarctic StudiesUniversity of Tasmania 

Christine Coughanowr Water quality management consultantCo-chair, Tasmania Independent Science CouncilFounder and former director, Derwent Estuary Program partnership

INDUSTRY REPRESENTATIVEDr John WittingtonCEO, Salmon TasmaniaFormer CEO, Blue Economy Cooperative Research Centre (CRC)Former Secretary of the Department of Primary Industries, Parks Water and Environment, Tasmania

AUDIENCE

Members of the Huon Valley community and surrounds. The call-out for audience was made on ABC Hobart, ABC Radio National, and The Cygnet. Huon & Channel Classifieds.

ACKNOWLEDGEMENTS

Thanks to Huon Valley Council for granting the ABC access to The Palais Theatre in Franklin for this event.

Thanks to Jo Spargo and the ABC Hobart team for supporting this Citizen Jury event.

Thanks to Huon Aquaculture staff for a tour of their hatchery facility and salmon pens for the Citizen Jury members and ABC Citizen Jury team.

FURTHER INFORMATION

Tasmanian Salmon Farming Data (Salmon Portal)

Fin-Fish Farming in Tasmania Legislative Council Inquiry report (2022)

How many salmon farms are there in Tasmania — and who owns them? (ABC News, 2025)

Massive fish deaths in Tasmanian salmon farms to be investigated (ABC 730, 2025)

Tasmanian salmon industry reeling from largest-ever fish deaths event as EPA launches investigation (ABC News, 2025)

ABC's CITIZEN JURY — Fixing salmon farming's environmental harms in Tasmania

In 1975, aged just 29, she wrote a bestselling book that changed Australia. Since then, she's courted controversy and acclaim, but Anne Summers has never given up the fight for gender equality.

This conversation was recorded live at the 2025 Sydney Writers' Festival.

Speakers

Dr Anne SummersAuthor, Damned Whores and God's Police, Ducks on the Pond: An Autobiography 1945-1976, The Misogyny Factor, and many moreProfessor of domestic and family violence, University of Technology SydneyJournalist, editor, political advisor, advocate

Dr Alecia Simmonds (host)Associate Professor in Law, University of Technology SydneyAuthor, Courting: An Intimate History of Love and the Law, and Wild Man: The True Story of a Police Killing, Mental Illness and the Law

Further information:

Tenacity and two squat houses — how an Australian movement was born for women leaving violenceBig Ideas, ABC Radio National, Monday 6 May 2024

Baby boycott — the fertility crisis and the big decisionBig Ideas, ABC Radio National, Thursday 26 June 2025

Anne Summers — 50 Years of Damned Whores and God’s Police

When people say or do the wrong thing, we have laws and a legal system that should be able to deliver consequences and, hopefully justice. But in this digital age, the human instinct to inflict punishment in the court of public opinion has reached fever pitch. So do we want to live by mob rule, or the rule of law?

The 2025 James Merralls Fellowship in Law Lecture, hosted by the University of Melbourne Law School and the Victorian Bar, was recorded on 4 September 2025.

Speakers

Sue Chrysanthou Defamation barrister

James Waters (host) Commercial law barrister

Why we need to cancel cancel culture — with defamation barrister Sue Chrysanthou

For all of human history, space has been a place of mystery, awe and fascination. But unless you're an astronaut, a billionaire, or a pop star, most of us will never have the opportunity to travel there — except in our minds. This conversation features two writers who've used the perspective of space to explore our humanity, Earth's place in the universe, and the meaning of it all.

The conversation, Out of this World was recorded live at the 2025 Sydney Writers' Festival.

Speakers

Samantha Harvey Author, Orbital (2024 Booker Prize winner) and many more

Ceridwen Dovey Writer of fiction, creative non-fiction and science, filmmaker, author of Only the Astronauts and many more

Ashley Hay (host) Writer, editor, facilitator, mentor, author of A Hundred Small Lessons, and many more

Out of this world — with Booker Prize winning author Samantha Harvey

AI is an incredible tool, but is AI also a new coloniser? Is there actually anything new or artificial about artificial intelligence? Join Natasha Mitchell at the 2025 Now or Never Festival to meet two big thinkers building a bridge between First Nations and Western knowledge to disrupt and reimagine the who, what, and why of AI?

This conversation was recorded on 26 August 2025, in partnership with The Wheeler Centre and Now or Never Festival. Discover more talks and bold conversations by following The Wheeler Centre wherever you get your podcasts or at wheelercentre.com

Speakers

Jessica Russ-Smith

Wiradyuri Wambuul woman

Associate Professor of Social Work in the School of Allied Health, Australian Catholic University.

Michelle Lazarus

Professor and Director, Centre for Human Anatomy Education

Deputy Director, Centre for Scholarship in Health Education Monash University.

Coauthors of the open-access book THE AI (R)EVOLUTION: Valuing Country, Culture and Community in a World of Algorithms (Monash University Publishing, 2024).

Get the book here:

https://publishing.monash.edu/product/ai-revolution/

Is AI the new coloniser? How to create more life-centred AI before it's too late

Have you ever visited an art gallery full of wonder, ready to be inspired, only to leave feeling like it was all a bit over your head? You're about to meet one writer whose new book of essays rejects the over-complication and gets to the messy, human heart of art.

What Artists See is a collection of essays from award-winning arts writer and critic Quentin Sprague, canvassing twelve contemporary Australian artists whose works span sculpture, painting and architecture, and the stories are just as diverse as the mediums.

This talk was recorded at the ANU Drill Hall Gallery on 27 August 2025.

Speakers

Quentin SpragueArts writer and critic, author of What Artists See, Ken Whisson: Painting and Drawing and The Stranger Artist: Life at the Edge of Kimberley Painting (2021 Prime Minister's Literary Award for non-fiction)

Mark McKennaProfessor of history, University of Sydney, author, The Shortest History of Australia, Return to Uluru, From the Edge: Australia's Lost Histories, Looking for Blackfellas' Point and An Eye for Eternity: The Life of Manning Clark, (winner, Prime Minister's Literary Award for non-fiction)

What Artists See? Critic Quentin Sprague helps you get to the messy human heart of art

This rollicking history traces the evolution of the London stock exchange, from the Transatlantic slave trade to modern day missions to Mars, arguing that the financial markets wield the power to bring down governments, and shape our societies, for better and for worse.

This lecture was recorded at the Australian National University.

Speakers

Philip Roscoe Author, How to Build a Stock Exchange: The Past, Present and Future of FinanceProfessor of Management, University of St Andrews, Scotland

How to build a stock exchange — the past, present and future of finance

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