Mathematics describes the real world of atoms and acorns, stars and stairs, with remarkable precision. So is mathematics invented by humans—like chisels and hammers and pieces of music? Or is mathematics discovered—always out there, somewhere, like mysterious islands waiting to be found? Whenever mathematics is will help define reality itself.

Featuring interviews with Roger Penrose, Stephen Wolfram, Max Tegmark, David Gross, and George Lakoff.

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What is intelligence, and how is AI emergence a natural consequence of evolution? In his book "What Is Intelligence?" and in this conversation, Google's Blaise Agüera y Arcas takes up the idea that prediction is fundamental not only to intelligence and the brain but to life itself, and explores the wide-ranging implications. These include radical new perspectives on the computational properties of living systems, the evolutionary and social origins of intelligence, the relationship between models and reality, entropy and the nature of time, the meaning of free will, the problem of consciousness, and the ethics of machine intelligence.

Blaise Agüera y Arcas is a VP/Fellow at Google, where he is the CTO of Technology & Society, and the founder of Paradigms of Intelligence, an organization dedicated to fundamental AI research. He is the author of Who Are We Now?, and his research has included work on privacy-preserving machine learning, on-device AI, large language models, and human identity.