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Welcome to another episode of Conversations with Coleman.

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My guest today is Sean Carroll.

Sean Carroll is a theoretical physicist specializing in quantum mechanics,

gravity, and cosmology.

He's a research professor in the Walter Burke Institute for

theoretical physics in the California Institute of Technology

Department of Physics. He's been a contributor to the physics

blog Cosmic Variance and has published in scientific journals

such as Nature, as well as other publications,

including The New York Times, Sky and Telescope, and The New Scientist.

Sean has his own podcast called Mindscape,

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