#35 – Julian Barbour and Samuel Kuypers: The Nature of Time

Arjun Khemani Podcast - A podcast by Arjun Khemani

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Julian Barbour is a renowned physicist known for his groundbreaking work on the nature of time. In his influential books, The End of Time and The Janus Point he explores the concept of a timeless universe, challenging traditional views. Samuel Kuypers is a theoretical physicist, currently located in Montréal, who is interested in the foundations of quantum theory and time.Topics we discuss are well captured by the timestamps below.Watch on YouTube or X. Listen on Apple Podcasts, Spotify, or any other podcast platform. Follow me on X for updates on future episodes.Click here to support my work. You can also send me bitcoin to this address.Timestamps1:10 - The instant is not in time, time is in the instant6:27 - Time capsules and evidence of time passing9:22 - Newton’s view of absolute time and space18:46 - Shape dynamics24:33 - Mathematics of variety37:51 - Newton’s theory as a theory of creation56:23 - How shape dynamics relates to general relativity1:06:50 - Entropy and heat death of the universe1:28:13 - Free will and determinism1:33:22 - Carpe diem1:34:13 - Julian’s interest in Shakespeare1:40:54 - Question from David Deutsch about quantum theory1:48:56 - Question from Brett Hall about general relativity and QT1:51:51 - Final remarks This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit www.arjunkhemani.com