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Will Constructor Theory REWRITE Physics?

Oct 24, 2026 · 21m

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 equations. It explains how this approach can unify quantum mechanics and general relativity, using examples like ruling out perpetual motion machines and testing gravity's quantum nature. The segment concludes with a discussion on quantum tunneling, addressing listener questions about particle motion, causality, and the nature of reality.

Topics discussed

The mechanistic approach to physics Limits of mechanistic theories and the search for a master theory Introduction to Constructor Theory and its foundations The power of counterfactuals in physics Newton's apple: Mechanistic vs Constructor views Perpetual motion machines and conservation laws Formalizing possibility and information theory Testing if gravity is quantum using Constructor Theory Constructor theory as a fundamental description of reality Listener questions on quantum tunneling Can particles tunnel through empty space? Does a particle cross the barrier during tunneling? Causality, wave functions, and the simulation hypothesis
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