ToKCast Ep 222: David Deutsch’s ”The Fabric of Reality” Chapter 12 ”TimeTravel” Part 1
Oct 15, 2024
Is time travel a reality? The discussion dives into the fascinating concepts of time dilation, exploring how our perception of time shifts with speed. A look at paradoxes like the grandfather paradox sparks debates about past and future travel. The relationship between time travel and consciousness reveals intriguing connections to multiple universes. Attendees navigate science fiction's take on these concepts while dissecting cinematic portrayals. Plus, insights on virtual reality's potential to recreate historical experiences and challenge our understanding of reality.
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Episode notes
Time as Dynamic Virtual Reality
- Time is not just a backdrop but a dynamic player tied to space, influenced by motion and perspective.
- Our perception of time is deeply tied to virtual reality, as our minds interpret limited, imperfect sensory data.
Contact’s Time Travel Experience
- The movie Contact illustrates time travel as subjective experience differing from outside observation.
- The protagonist experiences hours traveling through a wormhole, while outside it appears instantaneous.
Proper Time and Photons’ Instant Travel
- Proper time is the time measured by a clock moving with the observer and always ticks normally to them.
- Photons experience no passage of time, making distance instantaneous in their frame of reference.