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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

Under Donald Trump's second presidency, America's retreat from global leadership has been swift and erratic. With Russia's war in Ukraine still raging on Europe's doorstep, and China and India on the move, how is the international rules based order being reshaped? And how should Australia position itself in this dangerous, volatile, hard new world?

This conversation was recorded at the Australian National University on Tuesday 17 June 2025.

Speakers

Hugh WhiteEmeritus Professor of Strategic Studies, Australian National UniversityAuthor, Quarterly Essay #98, Hard new world: Our Post-American Future, as well as The China Choice, How to Defend Australia, and three previous Quarterly Essays: Power Shift, Without America and Sleepwalk to WarFounding Director of the Australian Strategic Policy Institute

Allan BehmSenior Advisor International & Security Affairs Program, the Australia Institute

Hard new world — our post-American future, with Hugh White and Allan Behm

Born a refugee of the Vietnam War, and now a Pulitzer Prize winning American author, Viet Thanh Nguyen unpacks the refugee experience, and the politics and the personal weight of remembering, and forgetting.

This event was recorded at the Melbourne Writers Festival on 11 May 2024.

Speakers

Viet Thanh Nguyen Author, A man of two faces, The Sympathizer, Simone (children's book) and more

Andre Dao (host) Author, Anam (winner of the 2024 Prime Minister's Literary Award for Fiction)Postdoctoral Research Fellow, Melbourne Law School, University of MelbourneCo-founder, Behind the Wire oral history project (and later the award-winning Messenger podcast)

Memory, refugees and the Vietnam War — with Pulitzer Prize winning author Viet Thanh Nguyen

Do you want to live in Putin’s vision of a world in which ‘the big boys’ dominate …. or in one in which smaller nations have a voice? If it’s the latter, so the President of the Czech Republic Petr Pavel, you need to support Ukraine. This war isn’t just about the borders in Ukraine or security in Europe, it affects the world and our principles of sovereignty, integrity, freedom, and the right of smaller nations to decide their own future. Hear from one of Europe’s foremost voices on global security on the implications of the war in Ukraine for the world.

The 2024 Lowy Lecture was presented by the Lowy Institute. November 26, 2024

Speakers

Petr PavelPresident of the Czech Republic

Dr Michael FulliloveExecutive Director of the Lowy Institute

Further information

Transcript of the 2024 Lowy Lecture as delivered, might vary from the audio

President Petr Pavel – on why the war in Ukraine is a fight for geopolitical stability worldwide

A freckle-faced kid from Bondi, Pauline Menczer fought the entrenched sexism of the pro-surfing scene to became women's world surfing champion and pave the way...er, waves..for girl grommets today. But all the while she was also fighting another battle inside her own body’s cells. Ironwoman and surf lifesaving champion Bonnie Hancock became the fastest and youngest person, and the first Australian woman, to circumnavigate Australia on a small surf ski, solo. What possessed her to paddle 12,700 kilometres through crocodile and shark-populated waters, mega-waves, and worse? Pauline and Bonnie join Big Ideas' host Natasha Mitchell for a conversation that might inspire you to chase your dreams, big or small.

This event was organised and hosted by the Queenscliffe Literary Festival. 

Speakers

Pauline MenczerWomen's world surfing champion Author, Surf Like a Woman (2024)

Bonnie HancockAthelete, professional Ironwoman, dieticianAuthor, The Girl Who Touched the Stars (2024)Ambassador, Gotcha4Life Foundation

Further information

Girls Can't Surf documentary

Australian Surfing Awards Surfing Hall of Fame

The surfer and circumnavigator — the gobsmacking feats of Pauline Menczer and Bonnie Hancock

From Vincent Namatjira's painting of Gina Rinehart, to Jonathan Yeo's take on King Charles, what do portraits say about those they represent, those who create them, and the broader context of the time?

The Andrew Sayers Memorial Lecture was recorded at the National Portrait Gallery on 31 July 2024. The National Gallery of Australia's annual lecture with Lindy Lee was recorded on 24 October 2024.

Speakers

Benjamin Law Writer, broadcaster and cultural commentator

Sarah Oakes (host) Director, External Relations, National Portrait Gallery

Lindy Lee Artist

Further information

Watch LIndy Lee's full lecture "A Life of Spirit" here

Catch Lindy Lee at the NGA for Ouroboros (permanent) and her retrospective until 1 June 2025.

Read more about Jordan Richardson's Venus here

Benjamin Law’s butt, and the power and politics of portraiture

Australia's unique biodiversity, a product of almost 50 million years of glorious evolutionary isolation, is in freefall. The threats are not just the rabbits, the cane toads, the cats and foxes – the common culprits. Let's not forget the small but impactful smooth newt or the fierce red fire ants, and the many invasive weeds. Twenty new weeds will establish in the wild in Australia this year – and every year to come … unless things change. But is it possible to stop this ongoing invasion? How do we go about it?

Heartlands Conversations was presented as part of the Blue Mountain Music Festival

Original broadcast on May 16, 2024

Speakers

Costa GeorgiadisHost of ABC TVs Gardening Australia and landscape architect

Andrew CoxCEO of the Invasive Species Council

Gregg Borschmann (host)Writer, radio producer and oral historian for the National Library of Australia

Is Australia overrun by feral animals? With Gardening Australia's Costa Georgiadis

At a time when family violence wasn't even recognised by the law, a group of women broke into two vacant houses in Sydney and claimed squatters' rights, changing lives and attitudes to family violence forever.

This event was recorded at the Elsie Conference on 15 March 2024. Original Big Ideas broadcast on 6 May 2024.

Speakers

Professor Di Otto Halfway House Victoria

Bobbie Townsend Former resident and worker, Elsie Women's Refuge

Vivien Johnson Founding member of Marrickville Women's Refuge Collective

Ludo McFerrin (host) Elsie Women's Refuge

Meet the mothers of Australia's women's refuge movement

They use of shark nets to protect us from sharks is highly controversial. 

Do they work, what do they do to marine life, are there alternatives, and why are sharks so political? This is an issue that ignites passions.

Join Big Ideas' host Natasha Mitchell and guests at the 2024 Ocean Lovers Festival for a robust interrogation of the harms and benefits​​.

Original broadcast April 17, 2024.

Speakers

Lawrence Chlebeck Marine biologist and campaignerHumane Society International 

Dr Chris Pepin-Neff Senior Lecturer in Public Policy, University of Sydney Author, Flaws: Shark Bites and Emotional Public Policymaking (2019) 

Steven Pearce Chief Executive Officer, Surf Life Saving NSW Hannah TaitCEO, Action for Dolphins

Further information: 

Australian UAV Service NSW Shark meshing program 

NSW Shark Management Strategy and Shark Program Review (2022) 

Rebranding Sharks project 

Australian Shark Incident Database

Yearly Worldwide “Shark Attack Summary” (Florida Museum) 

Shark nets information (Action for Dolphins)

The debate over shark nets: killers or life savers? With Natasha Mitchell and guests

Folk legend Eric Bogle is opening up and talks about his life, his thoughts about death, friendship and love and why having a deeper message for writing songs is so much more important than money and fame. It's a rare opportunity to share a conversation with one of the best and most prolific songwriters of the last several decades. His songs have become Australian classics – like The Band Played Waltzing Matilda or No Man's Land. And as a very special treat – you'll hear the world premiere of his latest song … finished on the way to this event.

A Heartland Conversation presented at the Blue Mountains Music Festival. March 17, 2024

Original broadcast on April 15, 2024

Speakers

Eric BogleScottish-born Australian folk singer-songwriter

Gregg Borschmann (host)Writer, radio producer and oral historian for the National Library of Australia

Eric Bogle tells it all — his songs and his life

The internet was supposed to make the world more open and connected, but things seem to have taken a dark turn. Scottish author Andrew O'Hagan makes an impassioned case for the role of readers and writing as "frontline workers" in the fight for reality.

These events were recorded at the Margaret River Readers & Writers Festival on 17 and 19 May 2024. Originally broadcast on Big Ideas on 18 July 2024.

Speakers

Andrew O'Hagan Author Caledonian Road, Mayflies, and moreEssayist and editor-at-large of the London Review of Books

Gillian O'Shaughnessy Writer, moderator, journalist

Andrew O'Hagan — Literature and truth in the era of fake news, algorithms and artificial intelligence

Democracy is in retreat, authoritarianism on the rise. But this has happened before. So how did big thinkers of the past respond to the threats to democracy, and what can we learn from them?

The Humanities Research Centre 50th Anniversary Distinguished Lecture was recorded at the Australian National University on 31 July 2024.

Speakers

Scott Stephens Co-presenter (with Waleed Aly) The MinefieldDigital editor, ABC Religion and EthicsCo-author of Quarterly Essay 87, Uncivil Wars: How Contempt is Corroding Democracy (2022)Editor of Justice and Hope: Essays, Lectures and Other Writings by Raimond Gaita (2023)

Dr Kim Huynh Senior Lecturer in Politics and International Relations, Deputy Director of the Humanities Research Centre

SOS Democracy with Scott Stephens — Saving democracy with decency

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