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Big Think is the leading source of expert-driven, actionable, educational content -- with thousands of videos, featuring experts ranging from Bill Clinton to Bill Nye, we help you get smarter, faster. Get actionable lessons from the world’s greatest thinkers & doers. Our experts are either disrupting or leading their respective fields. We aim to help you explore the big ideas and core skills that define knowledge in the 21st century, so you can apply them to the questions and challenges in your own life.
Episodes
Mentioned books

Oct 29, 2025 • 2h 26min
Where did our universe come from? | Ethan Siegel: Full Interview
Ethan Siegel, Ph.D., is an acclaimed astrophysicist and author known for his engaging science communication. In this discussion, he unpacks the origins of the universe, diving into the Big Bang theory and the concept of cosmic inflation. Siegel explains complex ideas like singularities, black holes, and the alluring possibility of a multiverse. He also highlights how the James Webb Space Telescope is revolutionizing our understanding of ancient galaxies and the universe's future. Prepare for a captivating journey through the cosmos!

Oct 29, 2025 • 9min
The mind-bending physics of time | Sean Carroll
The guest, Sean Carroll, is a Homewood Professor of Natural Philosophy at Johns Hopkins and a theoretical physicist renowned for his insights into cosmology. In this discussion, he delves into the enigmatic nature of time, exploring how the Big Bang set the stage for our understanding of past, present, and future. Carroll explains entropy and the second law of thermodynamics, illustrating how the universe's low-entropy beginning influences the arrow of time. He also speculates on the tantalizing possibilities of time travel and the multiverse.

Oct 29, 2025 • 9min
Music’s power over your brain, explained | Michael Spitzer
In this engaging discussion, Michael Spitzer, a professor of music at the University of Liverpool and author of The Musical Human, delves into how human evolution is intertwined with music. He explains how our bipedal walking shaped musical rhythm and how brain regions connect motion with sound. Spitzer highlights music's power to reduce stress, enhance emotional expression, and trigger vivid memories. He also explores the fascinating phenomenon of 'the chills'—where music evokes fear and pleasure simultaneously. A captivating exploration of music's profound impact on our brains!

14 snips
Oct 29, 2025 • 1h 31min
The neuroscience of extremes: Ruthless psychopathy to extraordinary generosity | Abigail Marsh
In a captivating discussion, Abigail Marsh, a Professor of Psychology and Neuroscience at Georgetown University, explores the spectrum of human behavior from extreme altruism to psychopathy. She challenges the notion that humans are inherently selfish, backed by her own life-saving experience. Marsh breaks down complex traits of psychopathy, clarifying myths and discussing treatment options. She also delves into how empathy can foster altruism, showcasing that kindness and cruelty may lie along the same continuum of human nature.

Oct 29, 2025 • 18min
10 biggest world threats of 2023, ranked | Ian Bremmer
Ian Bremmer, founder of Eurasia Group and political risk expert, dives into the top global threats of 2023. He identifies 'rogue Russia' as the foremost risk, outlining its implications on global security. Other pressing issues include rising water stress, the TikTok generation shaping political activism, and severe inflation impacting economies worldwide. Bremmer also discusses energy crises in Europe and tensions surrounding Iran's nuclear ambitions, underscoring the complexities of today's geopolitical landscape.

Oct 29, 2025 • 8min
If money doesn’t buy happiness, you’re spending it wrong | Your Brain on Money
Money can indeed buy happiness, but the key is how you spend it. Experts emphasize that investing in experiences creates lasting joy, unlike fleeting satisfaction from material possessions. Neuroscience reveals that our default spending often targets short-term thrills rather than enduring happiness. By reflecting on personal values, you can find your money personality to allocate funds meaningfully. Ultimately, memorable experiences lead to cherished stories, transforming how we perceive wealth and fulfillment.

Oct 29, 2025 • 44min
Is race politics poisoning young minds? Coleman Hughes weighs in
Coleman Hughes, a writer and opinion columnist specializing in race and public policy, discusses the complex philosophy of colorblindness. He argues that it's about treating individuals equally, without regard to race, and warns against harmful racial essentialism in education. Hughes emphasizes that race is a social construct shaped by political contexts rather than biology. He suggests focusing on socioeconomic status to address inequality effectively. The conversation critiques modern race politics and advocates for a more inclusive dialogue around race.

Oct 29, 2025 • 10min
Why Steve-O risked his life over, and over, and over again
Steve-O, entertainer and stuntman from the *Jackass* franchise, shares his tumultuous journey from outcast to fame. He opened up about his childhood desire for approval, which pushed him into extreme stunts, driven by a need to be seen. Despite his success, he battled alcoholism and continued feelings of inadequacy. Recovery led to self-reflection and the realization that his hustle might stem from never feeling 'good enough.' He questions whether contentment would spark laziness, revealing the complexities of fame and personal worth.

40 snips
Oct 29, 2025 • 12min
Wharton professor: 4 scenarios for AI’s future | Ethan Mollick for Big Think+
Ethan Mollick, a Wharton professor and author of "Co-Intelligence: Living and Working with AI," discusses the transformative potential and challenges posed by AI. He outlines four future scenarios for AI’s development, ranging from optimistic growth to existential risks. Mollick emphasizes viewing AI as a collaborative tool rather than a replacement, advocating for proactive choices to ensure its beneficial use. He also highlights AI's role in enhancing creativity and addressing real-world problems, urging responsible engagement with this powerful technology.

11 snips
Oct 29, 2025 • 10min
Your brain doesn’t detect reality. It creates it. | Lisa Feldman Barrett
In this enlightening discussion, Dr. Lisa Feldman Barrett, a leading psychologist and Chief Science Officer at the Center for Law, Brain & Behavior, explores how our brains don't just perceive reality—they create it. She explains how sensory inputs and past experiences shape our interpretations, leading to constructs like social reality. Barrett dives into the imaginative power of our minds, illustrating how this creativity fosters innovation but may also challenge our ability to remain present in the moment. A fascinating journey into the nuances of perception!


