Dr. Ruth Kastner and the transactional interpretation of quantum mechanics

The Rational View podcast with Dr. Al Scott

In this episode I am looking forward to exploring more about alternate interpretations of Quantum Mechanics. In previous episodes exploring consciousness, I’ve encountered several people who believe that Quantum Mechanics is at the root of consciousness. My current thinking is that it replaces one mystery with another one without really providing an explanation for consciousness. We are still stuck with the options of consciousness being a pre-existing property of the universe or some aspect of it, vs. it being an emergent feature of a processing network. Either way, quantum mechanics is an often misunderstood brilliant theory at the root of physics. It tells us that basic particles don’t exist at a specific position and momentum—they are, however, represented very accurately as a smooth wavefunction that can be used to calculate the distribution of a set of measurements on identical particles. The process of observation seems to cause the wavefunction to randomly collapse to a localized spot. Nobody knows for certain what causes this collapse. This is known as the measurement problem. The many worlds theorem says the wavefunction doesn’t collapse. It claims that the wavefunction describes all the possible universes that exist and the process of measurement just tells us which universe we are living in.

My guest is a leading proponent of transactional quantum mechanics.

Dr. Ruth E. Kastner earned her M.S. in Physics and Ph.D. in History and Philosophy of Science from the University of Maryland. Since that time, she has taught widely and conducted research in Foundations of Physics, particularly in interpretations of quantum theory. She was one of three winners of the 2021 Alumni Research Award at the University of Maryland, College Park (https://tinyurl.com/2t56yrp2). She is the author of 3 books: The Transactional Interpretation of Quantum Theory: The Reality of Possibility (Cambridge University Press, 2012; 2nd edition just published, 2022), Understanding Our Unseen Reality: Solving Quantum Riddles (Imperial College Press, 2015); and Adventures In Quantumland: Exploring Our Unseen Reality (World Scientific, 2019). She has presented talks and interviews throughout the world and in video recordings on the interpretational challenges of quantum theory, and has a blog at transactionalinterpretation.org. She is also a dedicated yoga practitioner and received her 200-Hour Yoga Alliance Instructor Certification in February, 2020.

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