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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