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Arjun Khemani Podcast
#35 – Julian Barbour and Samuel Kuypers: The Nature of Time
Sep 15, 2024
Julian Barbour, a renowned physicist known for his exploration of time, joins theoretical physicist Samuel Kuypers in a captivating discussion. They delve into the idea that time is not absolute, but shaped by moments. The duo contrasts Newton’s views with modern theories, exploring shape dynamics and cosmic evolution. They tackle entropy and the universe's heat death, while pondering free will versus determinism. Barbour's unexpected passion for Shakespeare adds a creative twist, enriching their philosophical reflections on existence and reality.
01:55:00
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Quick takeaways
- The concept of a timeless universe suggests that instants are shapes rather than a linear progression of time, challenging traditional views.
- The discussion of 'time capsules' emphasizes that each moment encapsulates the universe's history and physical laws, offering insight into the past.
Deep dives
Timeless Physics Explained
The concept of timeless physics challenges traditional notions of time by suggesting that instants in time are merely shapes of the universe. According to this view, duration is not an inherent aspect of reality but a construct we impose to make sense of these instants. The discussion highlights the mathematical basis for this idea, particularly using an analogy to photographs that capture distinct moments of the universe. This perspective implies that understanding the continuity and relationships between these moments is vital for a coherent view of physics.
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