This is a podcast primarily about the work of philosopher and physicist David Deutsch and related matters (such as Popperian epistemology). I read from and comment upon the books ”The Beginning of Infinity” & ”The Fabric of Reality” (both by Deutsch), ”The Science of Can & Can’t” (by Deutsch’s collegue Marletto) and ”Rationality” by Pinker (so far). In addition I make stand alone episodes about topics like resources, environmentalism, economics, science, philosophy, epistemology (especially explanations) and reason broadly.
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This is a podcast primarily about the work of philosopher and physicist David Deutsch and related matters (such as Popperian epistemology). I read from and comment upon the books ”The Beginning of Infinity” & ”The Fabric of Reality” (both by Deutsch), ”The Science of Can & Can’t” (by Deutsch’s collegue Marletto) and ”Rationality” by Pinker (so far). In addition I make stand alone episodes about topics like resources, environmentalism, economics, science, philosophy, epistemology (especially explanations) and reason broadly.
Ep 230: David Deutsch’s ”The Fabric of Reality” Chapter 12 ”Time Travel” Part 3
ToKCast
1 hour 33 minutes 17 seconds
9 months ago
Ep 230: David Deutsch’s ”The Fabric of Reality” Chapter 12 ”Time Travel” Part 3
The best part! If you missed the others, don't miss this one. All four strands come together to explain the possibility of time travel and the intrigue that arises when considering travelling to "your" past or future to visit "yourself".
Rough timestamps follow: 00:00 introduction and the significance of virtual reality 04:03 Physically possible renderings and resolving paradoxes 07:30 what does VR time travel tell us about physics? 11:05 Personhood and time travel 13:30 Highly unlikely events, the multiverse and “never”. 15:45 General Relativity and time travel 18:51 David’s 70th birthday online acknowledgement https://dd70th.weebly.com/ 20:14 Past directed time travel: the consensus 25:25 Black holes, wormholes and time travel 34:10 More on paradoxes and quantum gravity 38:00 The unpredictability of the growth of knowledge . 42:05 Visitors from the future 45:50 Time travel, BoI and Fungibility 56:00 Knowledge Paradoxes? 1:00:40 Creation ex nihilo and “recombination”. 1:06:39 Biological and explanatory knowledge 1:11:32 Useless information and the resolution of knowledge “paradoxes” 1:15:23 The knowledge “crystal” - structure across the multiverse. 1:22:18 The entire biosphere as a computation. 1:26:20 Civilisations as virtual reality renderings. 1:30:00 The four main strands and time travel.
ToKCast
This is a podcast primarily about the work of philosopher and physicist David Deutsch and related matters (such as Popperian epistemology). I read from and comment upon the books ”The Beginning of Infinity” & ”The Fabric of Reality” (both by Deutsch), ”The Science of Can & Can’t” (by Deutsch’s collegue Marletto) and ”Rationality” by Pinker (so far). In addition I make stand alone episodes about topics like resources, environmentalism, economics, science, philosophy, epistemology (especially explanations) and reason broadly.
