ToKCast Ep 80: David Deutsch's "The Fabric of Reality" Chapter 2 “Shadows”
Jul 19, 2021
This episode dives into the intricacies of quantum theory, offering a clear explanation of the multiverse. It explores the relationship between consciousness and fundamental physics, delves into the concept of shadows and parallel universes, and discusses quantization and the behavior of light. The episode also touches on the intriguing behavior of tangible and shadow photons, raising questions about the existence of shadow matter and the multiverse.
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Episode notes
Quantum Confusion to Clarity
- Brett Hall initially struggled to understand quantum theory conceptually, despite being able to solve problems mechanically.
- Reading The Fabric of Reality provided a breakthrough in understanding, clarifying the meaning of concepts like the Schrödinger wave equation.
Invisible Light Analogy
- Deutsch uses the analogy of a candle, inspired by Faraday, to explain light's properties, then switches to a flashlight.
- He explains the invisibility of light unless it enters our eyes, similar to how lasers in Star Wars should be invisible.
Quantization of Light and Matter
- Light, like gold, cannot be infinitely divided; there's a smallest unit (a photon).
- This concept of quantization applies to matter, like gold atoms, and other particles like electrons.