Will Constructor Theory REWRITE Physics?
Summary
This episode explores Constructor Theory, a framework by David Deutsch and Chiara Marletto that defines physics through binary facts of possibility rather than dynamical laws. The hosts explain how this approach could unify quantum mechanics and general relativity, potentially offering an experimental test for quantum gravity via entanglement. The segment concludes with listener questions on quantum tunneling and the nature of particle motion.
Topics discussed
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Introduction: The mechanistic approach to physics
The search for a master theory and its limits
Defining Constructor Theory and its foundations
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The science of 'can' and 'cannot': Counterfactuals
Example: The falling apple in Constructor Theory
Example: Ruling out perpetual motion machines
Formalizing possibility: Information theory and set theory
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Application: Testing if gravity is quantum
Constructor Theory as the most fundamental description
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Q&A: Quantum tunneling through empty space
Q&A: Time, causality, and simulation theory
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