Sean Carroll: Are we living in a clockwork universe?

Sean Carroll: Are we living in a clockwork universe?

October 16, 2025 • 9m 29s View Original ↗Big Think ↗

“The universe clicks along in perfect accord with the laws of physics forever.” Subscribe to Big Think on YouTube ► https://www.youtube.com/channel/UCvQECJukTDE2i6aCoMnS-Vg?sub_confirmation=1 Up next, Sean Carroll explains why physics is both simple and impossible | Full Interview ► https://www.youtube.com/watch?v=_TBNJyztai0 What if the universe is a machine, and every moment in our past, present, and future is already encoded in the positions of its particles? Physicist Sean Carroll explores the unsettling implications of classical mechanics, from Newton’s laws to Laplace’s thought experiment, showing how determinism challenges the very idea of free will. 0:00 Is reality a clockwork machine? 0:57 The determinism of classical mechanics 2:03 The spherical cow and simplified models 2:58 The universe as an equation 6:53 When the clockwork universe meets the human mind Read the video transcript ► https://bigthink.com/series/the-big-think-interview/sean-carroll-clockwork-universe/?utm_source=youtube&utm_medium=video&utm_campaign=youtube_description ---------------------------------------------------------------------------------- Go Deeper with Big Think: ►Become a Big Think Member Get exclusive content, early, ad-free access to new releases, and more. https://www.youtube.com/@bigthink/membership/ ►Subscribe to Big Think on Substack Explore content that enlightens, inspires, and transforms. https://bigthinkmedia.substack.com/subscribe/ ►Get Big Think+ for Business Engage learners like never before with high-impact video microlearning from the biggest thinkers in the world. https://bigthink.com/plus/?utm_source=youtube&utm_medium=video&utm_campaign=youtube_description ---------------------------------------------------------------------------------- About Sean Carroll: Dr. Sean Carroll is Homewood Professor of Natural Philosophy — in effect, a joint appointment between physics and philosophy — at Johns Hopkins University in Baltimore, and fractal faculty at the Santa Fe Institute. Most of his career has been spent doing research on cosmology, field theory, and gravitation, looking at topics such as dark matter and dark energy, modified gravity, topological defects, extra dimensions, and violations of fundamental symmetries. These days, his focus has shifted to more foundational questions, both in quantum mechanics (origin of probability, emergence of space and time) and statistical mechanics (entropy and the arrow of time, emergence and causation, dynamics of complexity), bringing a more philosophical dimension to his work.

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