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 MINDSCAPE

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Producer: Rachel Barrett

Thanks to our researcher Chris van Ryn!
And thanks to Maia Iva!
Hosted on Acast. See acast.com/privacy for more information.

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 work of advancing ethical giving through his current projects.

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Keep up to date with Peter on Substack
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Producer: Rachel Barrett
Hosted on Acast. See acast.com/privacy for more information.

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 meaningful achievable steps toward a more compassionate world.

learn more about Amy! Amy on INSTAGRAM Amy's podcast KINDNESS WITH AMY

watch this episode on YOUTUBE

Keep up to date with Peter on Substack
Keep up to date with Kasia!

Producer: Rachel Barrett

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

Hosted on Acast. See acast.com/privacy for more information.

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

Keep up to date with Peter on Substack
Keep up to date with Kasia!

watch this episode on YouTube!

Producer: Rachel Barrett

Thanks to our researcher Chris van Ryn!
And thanks to Maia Iva!
Hosted on Acast. See acast.com/privacy for more information.

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 periods of conflict or uncertainty.

Read the 2026 World Happiness Report

Keep up to date with Peter on Substack
Keep up to date with Kasia!

watch this episode on YouTube!

Producer: Rachel Barrett

Thanks to our researcher Chris van Ryn! And thanks to Maia Iva!
Hosted on Acast. See acast.com/privacy for more information.