ToKCast
Ep 230: David Deutsch’s ”The Fabric of Reality” Chapter 12 ”Time Travel” Part 3
Jan 20, 2025
Dive into the intriguing possibility of time travel, merging concepts from virtual reality, multiverse theories, and physics. Discover how black holes could play a role, based on Einstein's equations. Explore paradoxes that arise when considering interactions with one’s past self and the implications of knowledge in a multiverse. The discussions also touch on the nature of personhood, the unpredictability of knowledge growth, and the creative potential of civilizations as virtual realities. A fascinating journey into the fabric of time!
01:33:17
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Quick takeaways
- Time travel merges evolution, epistemology, computation, and physics, highlighting their interconnected roles in understanding reality and temporal implications.
- Virtual reality is crucial for exploring time travel, as it raises intriguing questions about identity and self through multiple universes and counterfactual events.
Deep dives
Interconnected Strands of Knowledge
Time travel intertwines several domains of thought, primarily evolution, epistemology, computation, and physics. While physics is often seen as the foundation for understanding time travel, the influences of the other strands must also be considered. A physics of biology and computation exists, and an emerging physics of epistemology aims to delineate what it is possible to know. Thus, these domains collectively contribute to a more robust understanding of reality and time travel's implications.
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