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Lex Fridman Podcast

#85 – Roger Penrose: Physics of Consciousness and the Infinite Universe

Mar 31, 2020
Roger Penrose, a brilliant physicist and mathematician from the University of Oxford, dives into the intriguing intersections of consciousness, computation, and the universe. He argues against viewing consciousness purely as computation, asserting that it's a deeper phenomenon. The conversation touches on quantum mechanics, its challenges, and the role of microtubules in consciousness. They also break down the philosophical implications of infinity and the cosmos, engaging listeners in a profound exploration of existence and understanding.
01:28:25

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Quick takeaways

  • Consciousness cannot be fully explained by computational processes according to Roger Penrose.
  • Consciousness may originate at the quantum level in microtubules, challenging conventional quantum mechanics.

Deep dives

Roger Penrose's quest to understand consciousness and computation

Roger Penrose, a physicist, mathematician, and philosopher at the University of Oxford, explores the nature of consciousness and its relationship to computation. He challenges the prevailing belief that consciousness is a result of computational processes and argues that it cannot be fully explained by conventional quantum mechanics. Penrose suggests that consciousness may originate at the quantum level inside neurons, specifically in microtubules. These structures, present in most cells, preserve quantum coherence and may play a crucial role in the reduction of states in quantum mechanics. While still in the early stages of exploration, Penrose's ideas offer a fresh perspective on the nature of consciousness and its potential connection to quantum physics.

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