Theories of Everything with Curt Jaimungal Chiara Marletto: Constructor Theory, Ghost Particles, and New Form of Science
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Jan 9, 2024 Chiara Marletto, a pioneering theoretical physicist, explores the transformative potential of Constructor Theory. She discusses its implications for understanding life's complexities and the nature of reality, shifting focus from traditional dynamics to possibilities and impossibilities. The conversation also delves into ghost particles and their enigmatic role in quantum field theory, challenging existing paradigms. Marletto emphasizes how her framework could bridge quantum mechanics and gravity, reflecting on the philosophical dimensions of discovery in science.
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Constructor Theory: A New Mode of Explanation
- Constructor theory is a new mode of explanation in physics, proposed by David Deutsch.
- It shifts from dynamical equations to the possibilities and impossibilities of transformations.
Turing Machines vs. Constructors
- Turing machines are programmable machines that perform computations, with classical versions based on Newtonian physics and quantum versions on quantum physics.
- Universal Turing machines can perform all physically allowed computations, while constructors generalize this to any physical transformation.
Possible vs. Impossible in Constructor Theory
- Constructor theory defines impossible tasks as those fundamentally limited by physical laws, not by probability.
- Possible tasks can be approximated to increasing accuracy with enough resources.
