ToKCast

Brett Hall
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Mar 17, 2021 • 27min

Ep 53: Understanding Universality

This is additional material about Chapter 6 of "The Beginning of Infinity" - but goes into some additional areas. I compare Greek Gods to Blockchain (in a sense). I think "The Jump to Universality" is a particularly poorly understood chapter. I hope this inspires many to go back and re-read that part of the book. Again. And again.
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Mar 8, 2021 • 49min

Ep 52 Ch 17 "Unsustainable" Part 2

Easter Island, Incans, Llamas and Australia. Resources and knowledge, creativity and stasis. We begin to bring together the chapters that have come before as we move into the crescendo of "The Beginning of Infinity". Images (on Youtube) all used under a creative commons licence. All music composed by me.
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Feb 5, 2021 • 37min

Ep 51 Ch 17 "Unsustainable" Part 1

What does the watchword of today "sustainable" really mean when taken seriously? In this episode we compare two titans of science communication: David Attenborough and Jacob Bronowski - for although they have inspired generations of scientists and those interested in science, their underlying philosophies could not have been more different. What are those philosophies and what consequences could they have if they were to drive actual policy? Also - a diversion on aspects of Australian and British history.
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Jan 17, 2021 • 57min

Ep 50 Ch 16 "The Evolution of Creativity" Part 2

The 50th episode! This is the third part (given there was a part 0, introduction) referring to chapter 16 of "The Beginning of Infinity" with substantive readings. We get into how memes evolved in non-human animals and then how these memes, and genes at some point allowed for a jump to universality. Specifically the universality of explanatory knowledge - which is a quality of a special kind of software - that which runs on our brains, or otherwise known as "a person's mind".
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Jan 13, 2021 • 12min

Ep 49: An introduction to epistemology

What it says in the title :) A short and sweet introduction to a particular way of thinking and knowing. This is all about fallibilism and the possibilities that being wrong opens up.
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Jan 13, 2021 • 32min

Ep 48: Cosmological Economics

This episode is highly visual and better viewed on Youtube here: https://www.youtube.com/watch?v=VlcQ4ZFKrKk However, the substance is still there in this purely audio-only version. This is another episode not primarily about "The Beginning of Infinity" but it is deeply inspired by it. It is a discussion exploring the "resources" debate. Are resources finite or infinite? I look at the intersection between economics and cosmology or people and the universe. So this is all about how knowledge changes physical reality, or as David Deutsch has said: how explanations transform the world.
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Jan 7, 2021 • 1h 6min

Ep 47: Are we alone?

A ToKCast Special: Brett talks about what he's learned over the years from various academics about the question of alien life. Although I don't mention it, I draw my inspiration from an academic paper I wrote years ago as part of my Masters degree in Astronomy - it can be found here: The Rare Earth That might be a bit more sober, hard-going and not exactly entertaining. I hope this video is fun. I don't read - I simply talk. It's a somewhat different style for ToKCast.
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Jan 7, 2021 • 40min

Ep 46 "The Evolution of Creativity" Part 1

This is the second part (after a part 0, introduction) referring to chapter 16 of The Beginning of Infinity with more substantive readings. We get into imitation and compare how apes "ape" and parrots "parrot" to what humans are doing when they learn. Meme replication and lyrebirds make an appearance.
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Dec 25, 2020 • 27min

Ep 45 Free Will Exists

This is not a regular episode - and if you have listened to episode 44 you do NOT need to listen to this because it is simply excerpts from that episode. It is simply an extraction from that episode of the material - solely my remarks rather than any reading - about the concept of "free will". The following is the Youtube description of this episode: This is an excerpt from https://www.youtube.com/watch?v=Oypz57aosnE but is focussed on my remarks about "free will". This is my best attempt at a response to Sam Harris or "CosmicSkeptic's" video here https://www.youtube.com/watch?v=Dqj32jxOC0Y It seems to me almost every public intellectual, more or less (Daniel Dennett aside) is allergic to the notion of "free will" because they guess it must be linked to some supernatural notion or must defy physics or is in some other sense irrational. I try to explain the scientific notion of the little we know and advance the case that a denial of free will simply moves the same mystery - the same problem - elsewhere.
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Dec 25, 2020 • 1h 12min

Ep 44 Ch 16 "The Evolution of Creativity" Part 0

Early on in the episode, I wrongly refer to this as "Episode 43". It's not: it's episode 44. This particular episode is largely about the concepts underpinning chapter 16 - with very little reading (I get through the first page or so). We explore creativity, choice and the associated "mysteries" (or problems of) consciousness and free will. Are these all facets of the same underlying - deeper truth - about personhood? This is one of those episodes with a couple of references to what is going on in the video version of the podcast...but I think most people will have sufficient imagination to guess what is going on :)

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