Philosopher of physics David Wallace breaks down the Everett (Many-Worlds) interpretation of quantum mechanics in today's episode. We discuss the big misconceptions in physics and explore probability, emergence, and personal identity across multiple worlds. Wallace also touches on the Born Rule, the direction of time, and why consciousness may not be as mysterious as it seems. This is a mind-bending tour through the foundations of reality. Enjoy. Thank you.

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David Wallace links: •⁠ ⁠The Emergent Multiverse (book): https://www.amazon.com/dp/0198707541•⁠ ⁠David Wallace’s published papers: https://philpeople.org/profiles/david-wallace/publications•⁠ ⁠Stating Structural Realism (paper): https://philsci-archive.pitt.edu/20048/1/semantic.pdf•⁠ ⁠David’s reading resources: https://sites.pitt.edu/~dmw121/resources.html•⁠ ⁠The Quantization of Gravity (paper): https://arxiv.org/pdf/gr-qc/0004005•⁠ ⁠Ted Jacobson discusses entropy on TOE: https://www.youtube.com/watch?v=3mhctWlXyV8•⁠ ⁠Curt debunks the “all possible paths” myth: https://www.youtube.com/watch?v=XcY3ZtgYis0•⁠ ⁠Julian Barbour discusses time on TOE: https://www.youtube.com/watch?v=q-bImnQ9cmw•⁠ ⁠TOE’s String Theory Iceberg: https://www.youtube.com/watch?v=X4PdPnQuwjY•⁠ ⁠Bryce DeWitt’s published papers: https://journals.aps.org/search/results?clauses=%5B%7B%22operator%22%3A%22AND%22%2C%22field%22%3A%22author%22%2C%22value%22%3A%22Bryce+S+DeWitt%22%7D%5D•⁠ ⁠Carlo Rovelli discusses loop quantum gravity on TOE: https://www.youtube.com/watch?v=hF4SAketEHY•⁠ ⁠Avshalom Elitzur discusses spacetime on TOE: https://www.youtube.com/watch?v=pWRAaimQT1E•⁠ ⁠Sean Carroll discusses the physics community on TOE: https://www.youtube.com/watch?v=9AoRxtYZrZo•⁠ ⁠Ruth Kastner discusses retrocausality on TOE: https://www.youtube.com/watch?v=-BsHh3_vCMQ•⁠ ⁠Simon Saunders’s talk on Many Worlds: https://www.youtube.com/watch?v=9gM-sgmCUik•⁠ ⁠Jacob Barandes discusses quantum mechanics on TOE: https://www.youtube.com/watch?v=7oWip00iXbo•⁠ ⁠Jacob Barandes discusses philosophy in physics on TOE: https://www.youtube.com/watch?v=YaS1usLeXQM

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Timestamps:00:00 Misconceptions About Physics01:27 Simplicity in Physics4:48 Understanding Quantum Mechanics7:27 Mysteries of Large-Scale Physics9:53 The Nature of Time13:19 Boundary Conditions in Physics15:04 Models of Physics16:56 Canonical vs Covariant Quantization21:10 Theories of Gravity28:22 Everettian Quantum Mechanics30:11 Misconceptions in Many Worlds Theory47:52 Decision Theory in Quantum Mechanics57:58 The Deutsch-Wallace Theorem1:14:47 The Nature of Fundamental Physics1:18:40 Personal Identity in Many Worlds1:27:14 Exploring Emergence1:33:19 Thoughts on Consciousness1:35:09 Disagreements with David Deutsch1:39:18 Understanding Real Patterns1:54:02 The Relevance-Limiting Thesis2:00:54 Advice for Young Researchers

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