What constitutes good science? Are there limits to science? If so, what are the boundaries? How deep can science dig into the foundations of the world?

Featuring interviews with Steven Weinberg, Paul Davies, Colin Blakemore, and Scott Aaronson.

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Scientists say my consciousness is just my brain. Theologians believe my consciousness reflects the God who created it. Mystics hold my consciousness is a drop in the ocean of cosmic consciousness. Who's right?

Featuring interviews with Marvin Minsky, Marilyn Schlitz, J. van Huyssteen, Colin McGinn, and Roger Walsh.

Closer to Truth presents the world’s greatest thinkers exploring humanity’s deepest questions. Discover fundamental issues of existence. Engage new and diverse ways of thinking. Appreciate intense debates. Share your own opinions. Seek your own answers.

Distinguished Philosopher Ned Block discusses perception, cognition, and consciousness as well as his latest book, The Border Between Seeing and Thinking, a model for bringing philosophy and the mind sciences into dialogue.

Ned Block is an American philosopher working in philosophy of mind who has made important contributions to the understanding of consciousness and the philosophy of cognitive science. He has been professor of philosophy and psychology at New York University since 1996.

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To inquire whether plants are “sentient” sounds like pseudoscience but has become real science. What does a plant know? Plants can react to their environments, but can plants sense or feel? Can they remember long-term? Can they adapt and learn? Are plants intelligent? And are they in any sense aware?

Daniel Chamovitz is an American-born plant geneticist and the 7th President of Ben-Gurion University of the Negev in Beer-Sheva, Israel.

How do Buddhism, Chinese traditions, and Hinduism address the perennial problems of suffering, ethics, ritual and contemplative practices? Why is suffering so important in Buddhism? Why karma in Hinduism? Why systems of nature in Chinese traditions?

Featuring interviews with Helen De Cruz Jay Garfield, Swami Sarvapriyananda, Swami Medhananda, Franklin Perkins, and Yang Xioa.

Explore all CTT videos on Eastern Traditions.

Why are we here? Why is there a world, a cosmos, something-instead of absolutely nothing at all? Of all the big questions, this is the biggest. Why? What can we learn from "nothing"?

Featuring interviews with John Leslie, Bede Rundle, Max Tegmark, Simon Blackburn, Quentin Smith, Victor Stenger, Peter van Inwagen, John Polkinghorne, Richard Swinburne, and Paul Davies.

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Professor Brian Swimme discusses cosmogenesis, our cultural evolution, human consciousness, the Noosphere, and more.

Brian Thomas Swimme is a professor at the California Institute of Integral Studies in San Francisco where he teaches evolutionary cosmology to graduate students in the philosophy, cosmology, and consciousness program. His upcoming book, The Story of the Noosphere, will be published in October.

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Two big ideas in biology: the evolution of species via mutation, fitness and natural selection; and the embryological development of individuals, from fertilized egg to whole organisms. How do these two big ideas—“evo-devo,” as it’s called—relate? What novel ideas emerge?

Featuring interviews with Alex Rosenberg, Alan Love, Rachell Powell, and Terrence Deacon.

You can watch all episodes in Season 23 on our website.