ToKCast

Brett Hall
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17 snips
Oct 11, 2023 • 50min

Ep 199: David Deutsch’s ”The Fabric of Reality” Chapter 10 ”The Nature of Mathematics” Part 2

The podcast explores the unique perception of mathematics, its treatment as a subject, and the allure of mathematicians. It delves into the criterion of existence and the limitations of human knowledge. It also discusses Plato's perspective on the nature of mathematics, struggles of learning as we get older, and controversies in mathematics.
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65 snips
Sep 12, 2023 • 1h 36min

Ep 198: Bayesianism

Explore the different aspects of Bayesianism, including Bayes' Theorem, Bayesian Statistics, Bayesian Reasoning, and Bayesian Epistemology. Dive into topics such as substrate independence, expliclt knowledge, explanatory universality, rational decision theory, measurement and uncertainty, and the limitations of probabilities and confidence intervals in scientific experiments.
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4 snips
Sep 10, 2023 • 1h 25min

Ep 197: David Deutsch’s ”The Fabric of Reality” Chapter 10 ”The Nature of Mathematics” Part 1: Introduction

This podcast episode introduces Chapter 10 of David Deutsch's book 'The Fabric of Reality', challenging assumptions about mathematics and exploring fallibility. It also discusses the concept of the brain as a computer, explores fallibilism and the distinction between abstract and physical entities, and reflects on zeal, evangelism, and critical thinking. The chapter delves into the complexity of physics and mathematics, the incorporation of a deeper theory, and the existence and effects of abstract entities.
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6 snips
Aug 29, 2023 • 43min

Ep 196: The Mother Military

The podcast discusses the 'feminisation' of Western militaries and the impact of diversity and inclusion ideologies. It explores the contrasts in military power between Western nations and potential enemies like China and Russia. The speaker questions the shift away from defense and the role of the military in society. Additionally, it delves into the woke movement's impact on gender portrayal, the parallels between traditional parenting roles in North Korea and cancel culture, and the feminization of the military.
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18 snips
Aug 23, 2023 • 35min

Ep 195: Knowledge, Wealth and Constructors

The podcast discusses the role of knowledge in transforming physical reality, the nature of knowledge as explanatory and transformative, the impact of emotions and intuition on decision making, the significance of good explanations, and the connection between physics, computing, and the unpredictability of creative entities.
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Jul 26, 2023 • 1h 34min

Ep 194: David Deutsch’s ”The Fabric of Reality” Chapter 9 ”Quantum Computers” Part 4: Shor’s Algorithm

This is a "return to regular format" episode in one respect - readings from and reflections upon "The Fabric of Reality" but also a departure from regular formatting in another respect: I teach a bunch of simple mathematics. This is for those who might think "quantum computation" and "quantum algorithms" will be forever beyond me. They are not! I begin with (quite literally) primary school mathematics level stuff (what's a prime number, what is the "fundamental theorem of arithmetic") and very gradually move up into algebra and some modular arithmetic and present examples using real numbers of what the problem is and then lead us to a place where we can glimpse the solution (which is Shor's Algorithm). I do not promise to bring the listener to a graduate quantum physics-degree-level of proficiency in quantum information theory and cryptography - but you will gain quite some insight. I refer to the following more in-depth expositions of all this and hopefully bridge the gap I think is there between "I know a little bit of maths and physics" and the kind of thing the following more "high level" videos offer (which I present in order of increasing technical difficulty) 1. The PBS Infinite Series on all this stuff is brilliant. In particular this introduction:    • How to Break Cryp...   and this video focussed more narrowly on Shor's algorithm:    • Hacking at Quantu...   2. Here is Peter Shor himself explaining the history of his work:    • The Story of Shor...   3. Artur Ekert's graduate level free online course on Quantum Information Theory: https://www.youtube.com/@ArturEkert/v... in particular his lecture focussed on Shor's Algorithm:    • IQIS Lecture 6.9 ...   (which, aside from "The Fabric of Reality" itself, served as the basis for this episode).
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21 snips
Jul 17, 2023 • 26min

Ep 193: Effortless Stoicism

I recommend the version found here that contains visuals and music: https://www.youtube.com/watch?v=mlvgxEBekP4 However the same message will come through on this audio only podcast.   Full Credit for all ideas to: James (Jim) Pierce Naval and Nivi and David Deutsch With mistakes all my own   See also James' website (and relevant article) here: https://www.james-pierce.com/writings/effortless-stoicism His instagram account including the original "Effortless Stoicism" video here: https://www.instagram.com/p/CuuDzL9sKOG/ His Twitter and relevant thread here: https://twitter.com/jimmpierce/status/1190810962493788160?s=20   Naval and Nivi's work on "How to get rich" where you can download their podcast from Naval's website here: https://nav.al/rich   Or the Youtube version: https://www.youtube.com/watch?v=1-TZqOsVCNM   See also Akira The Don's outstanding magical version along with other original music featuring Naval here: https://www.youtube.com/playlist?list=OLAK5uy_nX7x9AzwUTaGMFNVAxrLNXUJrKFotQ84Y   And my new favorite Naval/Nivi/Akira song here: https://www.meaningwave.com/blogs/meaningwave/akira-the-don-naval-ravikant-ft-nivi-you-will-need-to-rent-your-time-to-get-started-single
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11 snips
Jun 28, 2023 • 1h 3min

Ep 192: Where do ideas come from?

This is a cross-post from my Substack podcast "The 3Rs: Reality, Reason, Rationality" the text of which can be found here: https://bretthall.substack.com/p/where-do-ideas-come-from?sd=pf#details   This diagram is also relevant:  
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6 snips
Jun 16, 2023 • 39min

Ep 191: Science News 2: Dark Matter, Fusion, JWST Latest

Science news from a "critical rational" perspective. No "believing" in explanations here, no time for instrumentalism and a focus on good explanations of the evidence. Introduction (epistemology in science): 00:00 Dark Matter: 04:32 Modified Newtonian Dynamics (MOND): 08:12 Statistical confidence in physics: 15:23 Instrumentalism in modern physics: 19:00 Fusion Power 'News': 22:09 "Spinoffs" from fusion research: 24:56 Advice for investors in pure science: 28:26 James Webb Space Telescope latest: 31:59 Concluding Remarks: 37:42
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5 snips
Jun 13, 2023 • 35min

Ep 190: David Deutsch’s ”The Fabric of Reality” Chapter 9 ”Quantum Computers” Part3

Here in this second-to-last episode on the discussion of Chapter 9 from the Fabric of Reality we discuss some of the key distinctions between the classical and quantum - the philosophical and scientific implications and then some of the current experimental approaches to (and reporting on) the actual engineering of these devices. 

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