Lives Well Lived

Sean Carroll explores the strange and fascinating world of quantum physics, unpacking concepts such as Schrödinger’s cat, the Copenhagen interpretation, and Everett’s many-worlds theory. He explains how quantum mechanics challenges our understanding of reality, and examines what the existence of multiple possible worlds could mean for our conception of the universe.

learn more about Sean and listen to his podcast MIN...

Kasia interviews Peter shortly after his 80th birthday, exploring his life, and the ideas that have shaped his career. Peter traces the development of his practical ethics, from Animal Liberation and Famine, Affluence, and Morality to the emergence of effective altruism, GiveWell, and The Life You Can Save. Singer also discusses moral progress, personal regrets, writing about his family history in Pushing Time Away, and the ongoing...

Amy Aela is an Indian-Australian actress, model, entrepreneur, and host of Kindness with Amy.

After an existential crisis prompted her move to India, Amy built a global platform promoting kindness, veganism, and ethical living, inspired by watching the documentary Earthlings at age 15. Amy explores Indian cultural values, and pragmatic animal welfare reforms. Amy highlights the importance of challenging self beliefs and taking m...

Nobel Prize-winning economist Alvin Roth explains how innovative market designs can reduce exploitation and save lives. Drawing on his pioneering work in kidney exchanges, Roth explores some of society’s most contentious moral dilemmas involving organ markets, surrogacy, and unpacks the ethical tensions surrounding what he calls “repugnant transactions.”

read Alvin's new book MORAL ECONOMICS

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Peter & Kasia speak with leading happiness researcher John Helliwell about the findings of the 2026 World Happiness Report, exploring why countries like Finland consistently rank among the world's happiest. John reveals how life satisfaction is measured, why happiness is declining among young people in many Western nations, and how factors such as social connections and institutional trust can sustain well-being even during per...

Good Food Institute founder Bruce Friedrich joins the podcast to discuss the revolutionary changes unfolding in food technology and the mission behind the Good Food Institute’s work to reduce reliance on animal agriculture through plant-based and cultivated meat. Bruce presents the key arguments driving the shift toward alternative proteins, including climate change, food security, antibiotic resistance, and pandemic preventi...

Jamie Metzl is an American author, geopolitical analyst, and technology futurist who focuses on the intersection of artificial intelligence, genetics, biotechnology, and global politics. He is known for writing and speaking about how emerging technologies could reshape society, healthcare, and human evolution.

Metzl shares his insights on the importance of responsible governance, cautious optimism, and global cooperation in the ...

sadly, Edith Eger passed away this week. To honour her we have decided to re-release our episode because we think that there are important lessons to be learned about how to live one's life well from Edith.

Holocaust survivor Edith Eger shares her emotional journey of surviving Auschwitz, her encounter with Josef Mengele, and how she became known as the 'Ballerina of Auschwitz.' Edith highlights the slow, evolving process of com...

Claude Steele is an American social psychologist and professor at Stanford University. Claude is best known for his research on stereotype threat, the idea that people can underperform when they fear confirming negative stereotypes about their group. Claude introduces the concept of "churn,"and how trust acts as a powerful antidote to divisiveness and stereotypes, offering pathways to a more integrated society.

read Claude'...

Derek Shiller is a researcher at Rethink Priorities who joins us to discuss the implications of AI consciousness, and the ethical considerations surrounding artificial intelligence. This episode is a follow on from the previous episode with Claude the AI built by Anthropic.

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Producer: Rachel Barrett

Thanks to our researcher Chris van Ryn! And thanks to Maia Iva!

Peter & Kasia are in-conversation with their first non-human guest.. an Anthropic AI Assistant called Claude. Claude discusses whether it has subjective experiences, and if reported self-preservation techniques (including blackmail scenarios) indicate a level of consciousness and a desire to exist.

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Producer: Rachel Barrett

Thanks to our researcher Chris van ...

Will MacAskill is a co-founder of the effective altruist movement who shares his perspective on doing good, moral philosophy, and the potential of AI to revolutionise society.

You can now watch this episode on YouTube!

Learn more about Will and read the 10th anniversary edition of Doing Good Better

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Producer: Rachel Barrett

Thanks to our researcher Chris va...

Zoe Weil is the co-founder and president of the Institute for Humane Education, where she pioneeres comprehensive humane education that connects human rights, environmental sustainability, and animal protection. Zoe discusses the concept of being a solutionary, an ethical approach to solving systemic problems for the greater good.

Learn more about Zoe and listen to her podcast Solutionary Voices

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Rebecca Goldstein is an American philosopher, and novelist of 'The Mind Body Problem'. Goldstein examines the human need to feel that one’s life matters, and the ways people justify their existence through relationships, achievements, fame, and moral purpose.

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Producer: Rachel Barrett

Thanks to our researcher Chris van Ryn!

Jennifer Wallace is an American journalist and author best known for her book Never Enough: When Achievement Culture Becomes Toxic—and What We Can Do About It, which explores how high-pressure achievement environments impact mental health. Jennifer explores the concept of 'mattering' and distinguishes the difference between self-esteem and mattering.

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Lisa Feldman Barrett is a neuroscientist, psychologist, and author known for her groundbreaking research on how emotions are created by the brain rather than simply triggered by external events. She has challenged traditional views of emotion and helped establish new ways of understanding the construction of emotional experiences.

Lisa talks about how the brain's processes can help overcome anxiety related to public speaking, an...

Professor. Yuval Noah Harari is a historian, philosopher, and the bestselling author of Sapiens: A Brief History of Humankind. His books have sold over 45 Million copies in 65 languages, and he is considered one of the world’s most influential public intellectuals today.

Yuval discusses the the main victims of history throughout the ages, and what was arguably the worst crime in history, and gives his views on the importan...

Ingrid Newkirk is an author, activist, and president of People for the Ethical Treatment of Animals (PETA), the world's largest animal rights organisation. Ingrid discusses PETA's achievements, and the compromises she has had to make in order to reduce the vast universe of suffering that humans inflict on animals, and how these ideals could be implemented throughout society to enable revolutionary change.

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Daniel Kahneman was an Israeli-American psychologist, awarded the 2002 Nobel Memorial Prize in Economic Sciences, and his work revolutionised our understanding of human decision-making.

This is Kahneman's last public interview before his death on March 27, 2024.

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Executive Producer: Rachel Barrett

special thanks to Suzi Jamil!