ToKCast

ToKCast

byBrett Hall

EducationSelf-ImprovementScienceSocietyCulturePhilosophy

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.

Episodes(40 episodes)

Episode 249
Ep 248: AI and Philosophy of Science
This is the extended "director's cut" of a talk delivered for "RatFest 2025" (next year to be "Conjecture Con"). This also serves as a supplement to my "Doom Debates" interview which can be found here: https://youtu.be/koubXR0YL4A?si=483M6SPOKwbQYmzb It is simply assumed some version of "Bayesian reasoning" is how AI will "create" knowledge. This misconception permeates the https://ai-2027.com paper, as well as Bostrom and Yudkowsky's work on this, as well as that of every other AI "Doomer" and even on the other extreme the so-called "AI-Accelerationists". All of that indicates...
Published: Oct 13, 2025Duration: 1h 25m 39s
Episode 248
Ep 247: The Farthest Reaches Part 3
Chapters and Timestamps 00:07 Chapter 10 Explanatory Universality and Ethnicity 24:51 Chapter 11 Explanatory Universality and Multiculturalism 37:47 Chapter 12 Explanatory Universality and Mental Illness.
Published: Sep 22, 2025Duration: 47m 19s
Episode 247
Ep 246: The Farthest Reaches Part 2
Chapters and Timestamps:   00:06 Chapter 5 Explanatory Universality, Psychology and IQ 03:30 Chapter 6 Explanatory Universality and Adopting Culture 11:47 Chapter 7: Explanatory Universality and IQ Part 2 17:10 Chapter 8 Explanatory Universality and the “trans” issue. 27:35 Chapter 9: Explanatory Universality and Immigration
Published: Sep 16, 2025Duration: 56m 26s
Episode 246
Ep 245: The Farthest Reaches (Part 1)
Chapters 1 to 4 of a multi-chapter series about the reach of what I argue is one of the most important lessons to learn in order to solve many pressing problems: explanatory universality. This podcast provides an explanation that "explanatory universality" is an idea of such depth it may have among the greatest reach of any idea. Chapters: 00:12 Chapter 1 - Universality and Reach 09:09 Chapter 2 - The Reach of Explanatory Universality 20:01 Chapter 3 - Explaining Explanatory Universality 30:23 Chapter 4 - Explanatory Universality and Education
Published: Sep 12, 2025Duration: 44m 43s
Episode 245
Ep 244: Deep learning is not "inductive".
We are told by people working in the field, researchers and those who publish academic papers on the topic that artificial intelligence or deep learning or LLMs or Machine Learning or Recurrent Neural Networks - call them what you like - employ some form of inductive reasoning. But do they? What is inductive reasoning? What is deductive or adductive for that matter? Is "new physics" or other new science being discovered by the most recent and best chatbots or other "artificially intelligent" computer systems? My response to all that is contained herein.   For images see: h...
Published: Aug 22, 2025Duration: 22m 35s
Episode 244
Ep 243: In praise of ignorance - the podcast. With Liberty Fitz-Claridge
This episode is a reading of and reflection upon more writing by David Deutsch - an article you can find at https://takingchildrenseriously.com/in-praise-of-ignorance/ Joining me is philosopher and language educator Liberty Fitz-Claridge. Liberty holds Master Degrees in both Philosophy and Applied Linguistics and English Language teaching, as well as a Bachelors in The Philosophy of Science. As well as teaching, Liberty runs the Popper-Deutsch Reading Group which can be found at www.meetup.com/popper-deutsch-reading-group/ In this conversation Liberty refers to the following articles: 1. Ioup, Georgette, Elizabeth Boustagui, Manal El Tigi...
Published: Jul 21, 2025Duration: 1h 36m 22s
Episode 243
Ep 242: Is religion worth preserving?
  Woke is a rejection of the truth, the good, the beautiful. Is the best response a return to traditional religion? Are some dogmas worth defending?
Published: Jul 11, 2025Duration: 17m 36s
Episode 242
Ep 241: AI 2027 Reaction Part 5: Summary and Conclusions
A summary of some arguments made in the previous 4 parts, and a conclusion to my evaluation of https://ai-2027.com I refer to Daniel Kokotajlo's paper which contained an earlier set of predictions made in 2021 about the 5 years leading to 2026 which is found here https://www.lesswrong.com/posts/6Xgy6CAf2jqHhynHL/what-2026-looks-like Note that Part 4 is here: https://youtu.be/C3jDjuSLBv0 Part 3 is here: https://youtu.be/7P-UlHiTins Part 2 is here: https://youtu.be/o3Rdj37UJjw Part 1 is here: https://www.youtube.com/watch?v=Uq_txKy-XMQ Credit to  ⁨@drpeterboghossian⁩  for the inspiration,  ⁨@NavalR⁩  for the support...
Published: May 29, 2025Duration: 42m 18s
Episode 241
Ep 240: AI 2027 Reaction Part 4
Note that Part 3 is episode 239 or can be found here: https://youtu.be/7P-UlHiTins Part 2 is here: https://youtu.be/o3Rdj37UJjw Part 1 is here: https://www.youtube.com/watch?v=Uq_txKy-XMQ I react to the contents of this article https://ai-2027.com
Published: May 22, 2025Duration: 22m 1s
Episode 240
Ep 239: AI 2027 Reaction Part 3
Episode 238 contains Part 2 of this podcast and Episode 237 is Part 1. Also all parts are available on Youtube as almost always. Eg here for part 2: https://youtu.be/o3Rdj37UJjw Part 1 is here: https://www.youtube.com/watch?v=Uq_txKy-XMQ   I am reacting to the contents of this article https://ai-2027.com
Published: May 21, 2025Duration: 46m 19s
Episode 239
Ep 238: AI 2027 Reaction Part 2
Note that Part 1 is found in Episode 237 or can be viewed here: https://www.youtube.com/watch?v=Uq_txKy-XMQ   I react to the contents of this article https://ai-2027.com with some further general comments on ‪@DwarkeshPatel‬ 's interview with two of the authors here: https://www.youtube.com/watch?v=htOvH12T7mU
Published: May 20, 2025Duration: 48m 15s
Episode 238
Ep 237: AI 2027 Reaction. Part 1
I react to the contents of this article https://ai-2027.com with some further general comments on ‪@DwarkeshPatel‬ 's interview with two of the authors here:    • 2027 Intelligence Explosion: Month-by...     Youtube version of this podcast is here: https://www.youtube.com/watch?v=Uq_txKy-XMQ
Published: May 16, 2025Duration: 52m 51s
Episode 237
Ep 236: Max Velthoven, legal science, AI and epistemology.
Max is a tax lawyer who is applying Popperian epistemology to legal science and issues in AI. Links to some more of his work, and the slides to accompany part of this video are below. Slides for Max's talk(s): https://www.bretthall.org/popper-and-legal-science.html Max’s journal article on AI with Eric Marcus (in NLFiscaal TaxTech): NLFiscaal | Problems in AI, their roots in philosophy, and implications for science and society: https://www.nlfiscaal.nl/nlfiscaal-doc/BEEAD89DD9E44E81B23811716258A4C4 Slides to accompany: https://www.linkedin.com/fe...
Published: Apr 25, 2025Duration: 1h 9m 37s
Episode 236
Ep 235: The Simulation Hypothesis
This is a "megasode" combining two episodes from Youtube all about the Simulation Hypothesis. In the first part I provide the philosophical basis for the simulation hypothesis as explained especially by Nick Bostrom and compare it to other "ultimate" explanations of reality. In part 2 I discuss and evaluate the arguments made by Scott Adams and Joe Rogan who endorse some version of Bostrom's argument.
Published: Apr 9, 2025Duration: 1h 50m 15s
Episode 235
Ep 234: On the Evolution of Reason
I recently had the opportunity to participate in "Spectrum Street Epistemology" with  @drpeterboghossian  and a number of others including  @destiny  . This episode was inspired by both that event and the many other conversations I had with Peter, Reid, David, Evan, Mia and Travis across the days I spent in Florida with those excellent people engaged in the important work of defending the Enlightenment. This is a sort of disjointed episode as I have in mind a particular audience of sophisticated thinkers on epistemology so I meander through my own worldview, take a historic look at why it is "belief" and...
Published: Mar 4, 2025Duration: 42m 32s
Episode 234
Ep 233: David Deutsch’s ”The Fabric of Reality” Chapter 13 ”The Four Strands" Part 1
The first part of my discussion of the differing visions of science and how scientific knowledge "grows" (or not) according to Thomas Kuhn vs Karl Popper as outlined in this chapter of "The Beginning of Infinity". Kuhn's "The Structure of Scientific Revolutions" explains the concept of a "paradigm" and "paradigm shifts" comparing "revolutionary" and "normal" periods of science. Kuhn's work remains the most cited in the social sciences and so far more people - especially in academia - are familiar with his work that Popper's. What explains this? What does Kuhn have to say? And what does a "critical...
Published: Feb 20, 2025Duration: 1h 10m 56s
Episode 233
Ep 232: Karl Popper's "The Myth of the Framework" Sections IV to VI. "The Critical Method": deep dive
The second in the series on "The Myth of the Framework" paper. Timestamps: 00:00 Introduction with some reflections on Joe Rogan and Gad Saad 05:14 Section IVa reading - on “Confrontations” 06:32 Section IVa reflection 09:48 Section IVb reading 10:17 Section IVb reflection 12:14 Section IVc reading - tolerance and respect 13:26 Section IV c reflection on Herodotus and tolerance 15:08 Section IV d reading. When should a discussion reach agreement? 16:39 Section IV d reflection. Quibbling with Popper? True Theories or Best Explanations? 28:54 Section IV e reading Good...
Published: Feb 5, 2025Duration: 1h 22m 46s
Episode 232
Ep 231: Karl Popper's "The Myth of the Framework" Sections I to III. Discussing discussions: deep dive
I take another deep dive into a deeply insightful and original lecture by Karl Popper: The Myth of the Framework. In this first part (of 4) I spend most of the episode unpacking our motivations, Popper's own thoughts on his success in combating bad ideologies and the purposes of discussion. Indeed this piece can be considered an instruction manual for discussions: how to have them and why. Below: timestamps for this episode: 00:00 Purpose of this new series 05:41 Woke, DEI and Popper 10:47 Popper in his own words on his “success” 12:23: Marxism and Relativism as “ideas that survive” 19:47 Popper in the modern day 22:3...
Published: Jan 25, 2025Duration: 1h 36m 1s
Episode 231
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 consensu...
Published: Jan 20, 2025Duration: 1h 33m 17s
Episode 230
Ep 229: David Deutsch’s ”The Fabric of Reality” Chapter 12 ”TimeTravel” Part 2
An outside broadcast as you will hear. Image generation and virtual reality provide a window on the physics of time travel. Why is that? And what about all those time travel paradoxes? The resolution to all is found herein.
Published: Jan 17, 2025Duration: 52m 51s