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. 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. Website: ruthekastner.org Discussion of this interview in the BatGap Community Facebook Group Transcript and summary of this interview Interview recorded October 21, 2023. YouTube Video Chapters: 00:00:00 - Introduction to Buddha at the Gas Pump 00:04:03 - The Importance of Physical Fitness and Yoga 00:08:00 - Discovering the Transactional Interpretation 00:11:58 - The Connection between Consciousness and Spirituality 00:16:28 - The Yin-Yang Nature of Quantum Theory 00:21:50 - The Reality of Quantum Possibilities 00:26:08 - The Blind Men and the Elephant 00:29:38 - The Measurement Problem and Consciousness 00:36:21 - The Orthodox Position on Dark Matter and Dark Energy 00:41:10 - Events and the Illusion of Space-Time 00:44:08 - The Analogy of Enlightenment and the Game of Life 00:47:10 - The Shimmering Intelligence in Every Particle of Creation 00:53:15 - Pathology and the Neglect of Yin 00:55:34 - The Taboo of Passivity and Eastern Wisdom 00:58:00 - The Debate on Free Will 01:00:39 - The Ad hoc Nature of the Feynman Propagator 01:01:21 - The Flatland Analogy 01:04:48 - Mr. Flatland and the Sphere 01:08:16 - The Controversy Surrounding the Term "Consciousness" 01:11:50 - Volition and Symmetry Breaking in Nature 01:15:01 - The Relationality of Charged Particles 01:18:22 - Understanding outcomes in the transactional picture 01:21:52 - Mastery over the Laws of Nature 01:24:56 - The Holographic Principle and its Significance 01:29:23 - Quantum Theory and the Physical World 01:33:25 - The Power and Limitations of Physical Science 01:43:30 - The Interconnectedness of String Theory 01:49:12 - The Flow of Time and Phenomena 01:54:24 - The Cosmos: Conscious Being or Product of Chance and Necessity