The Theory of Anything

Can philosophical theories be refuted? What is a bad explanation? Can all theories be made more empirical? In search of an answer to these questions, Bruce takes a deep dive into what he believes is the correct way to apply “Popper’s ratchet” to metaphysical or philosophical theories. Along the way, Bruce puts forward a generalization of testability he calls “checkability” and explains why “vague-...

Continuing from episode 91, we continue our deep dive into Popper's Conjectures and Refutations Chapter 8 where Popper explains how to use his epistemology on philosophical theories that (by definition) can't be 'refuted'. Despite agreeing with most of Popper's specific arguments, we offer some considerable criticisms to Popper's approach to criticizing philosophical theori...

Forgive the clickbait title. The episode should probably actually be called "The (Lack of) Problem of Induction" because we primarily cover Popper's refutation of induction in C&R Chapter 8. This episode starts our deep dive into answering the question "What is the difference between a good philosophical explanation and a bad explanation?" To answer that question we go...

Today our guest Ivan Phillips methodically explains what Bayesianism is and is not. Along the way we discuss the validity of critiques made by critical rationalists of the worldview that is derived from Thomas Bayes’s 1763 theorem. Ivan is a Bayesian that is very familiar with Karl Popper's writings and even admires Popper's epistemology. Ivan makes his case that Bayesian epistemology is t...

This week we discuss the book Orthodoxy by G.K. Chesterton (1908), perhaps the most famous defense of the Christian tradition. We contrast this with Karl Popper’s talk, “Towards a Rational Theory of Tradition” (1948), from his collection of essays, Conjectures and Refutations. We consider: What is the role of tradition in science and knowledge? Is there a relationship between liberalism and Christ...

Here Bruce reflects on AI researcher Kenneth Stanley’s assertion that setting specific, measurable goals may actually hinder discovery and innovation, which he writes about in his book, Why Greatness Cannot Be Planned: The Myth of the Objective . How does Stanley’s insight relate to critical rationalism, education, and life in general? We cover topics including: Why are objective sometimes mislead...

Is the universal explainer hypothesis falsifiable? How does the concept of universality relate to human minds? Is anything truly beyond human comprehension? And how would you frame universality as an interesting topic at a party? This week we also feature a guest, Dan Gish, a fellow traveler Bruce has connected with on Twitter. Dan (on Twitter) had questions about if the incomprehensibility of LLM...

How do humans form 'fuzzy categories'? How does this all relate to essentialism? Is essentialism false? Or is it partially true? And how does this all relate to Critical Rationalism? Picking up where we left off last week, Bruce gets deeper into Douglas Hofstadter’s ideas on language and the mind and his assertion that “analogy-making lies at the heart of intelligence.” Bruce considers how...

This is the first of our two part series (that may or may not be released back-to-back) where Bruce delves into the work Douglas Hofstadter, specifically the book Surfaces and Essences. We consider what is the relationship—if there is any—between critical rationalism and Hofstadter's idea that analogy is a core mechanism of human cognition. Is it fair to criticize Hofstadter's ideas as bei...

Here we discuss a 1992 interview with David Deutsch where he makes the case that video games are inherently educational, not addictive, and that children should not be stopped from playing as much as they want. We contrast the view of humans, science, and knowledge promoted there by David Deutsch with the more pessimistic view of thinkers such as Jonathan Haidt today. Bruce and Peter reflect on th...

Bruce summarizes his (unique?) understanding of Karl Popper’s epistemology that (possibly?) straddles the line between orthodox and unorthodox and is Influenced both by Deutsch, more old school Popperians, and his own unique interpretation of critical rationalism. Bruce claims that the key difference between regular "folk epistemology" (i.e. how humans reason without a correct understand...

In an episode that may (or may not) be his magnum opus, Bruce introduces his term for Karl Popper’s idea that you are only allowed to solve problems with your (scientific) theory by making it more empirical, not less empirical. Bruce makes the case that this is one of Karl Popper’s least appreciated ideas, as all of us are tempted by ad hoc saves that move our ideas in the direction of vagueness....

Bruce sympathetically critiques David Deutsch’s concept of “easy to varyness” as a way to judge our explanations. Are our best theories about reality truly hard to vary? Bruce makes the case that Popper’s concept of “ad hocness” may be a strangely interwoven concept. Along the way we get deeper into whether Popperian epistemology is best seen as an attitude or a methodology.

Bruce wraps up his epic 6 part series on knowledge and the 'two sources hypothesis' (i.e. Deutsch's theory that all 'knowledge' comes from only two sources: Biological evolution and human minds). What happens if we take all the non-two sources examples of 'adapted information that cause itself to remain so' (e.g. the walking robot, the immune system, trade secrets, anim...

Is human creativity algorithmic? What is the difference between an Inspiration and a perspiration algorithm? Can mechanical processes ever create knowledge? What is the relationship between creativity and explanation? If we had the 'inspiration' algorithm today, would it use perspiration? Here Bruce continues his exploration of these issues and more.

Do animals create knowledge? Deutsch claims they don't because all their knowledge is in their genes. Yet he admits that animals do have memes! But aren't memes, by definition, knowledge outside the genome? How does Deutsch attempt to deal with these problems with his theory of knowledge? And how well do his arguments hold up?

Bruce continues to consider what our best theories tell us about knowledge. Is there something special (or even physically different) about the knowledge created by nature through biological evolution and human minds (i.e. the 'two sources hypothesis')? How should we think about knowledge created in human minds that could take us to the moon and beyond or divert an asteroid? Is it physical...

In the previous episode, Bruce pointed out an apparent contradiction between Deutsch's criteria for knowledge as 'adapted information that causes itself to remain so' and his example of the 'walking robot algorithm' which is a case of adapted information causing itself to remain so but that Deutsch doesn't consider to be knowledge. This time we consider if we can eliminate...

What is the “two sources hypothesis,” or the idea that there exist only two sources of knowledge in the known universe: Darwinian natural selection and human minds? Does a “genetic programming algorithm” used to make a robot walk create knowledge? Thus begins our deep dive into Deutsch's Theory of Knowledge and particularly his "Two Source Hypothesis." Bruce hints that this is leadin...

What is the “problem of open-endedness”? Bruce explores how what might sound like an esoteric machine-learning issue may actually be interwoven with our deepest theories on evolution, human consciousness, and knowledge creation. Also included: Bruce's guide to how NOT to argue with a Creationist. References: Kenneth Stanley's article: "Open-endedness: The last grand challenge you’ve n...

Here we move three arguments from social media to the podcast. 1. Given Deutsch’s universal explainer hypothesis, does it make sense to say that men commit more crimes due to testosterone? Are humans only 'approximately' Universal Explainers? 2. Can anything in reality be simulated? What exactly does it mean to be simulated? 3. Is “heat death” a bummer? What would Conan the Cimmerian say?

Here we use Nassim Nicholas Taleb’s essay “The Most Intolerant Wins: The Dictatorship of the Small Minority” as a springboard to discuss majority rule, moral progress, knowledge growth, wokism, Karl Popper’s paradox of tolerance, and “big agriculture.”

With guest Ivan Phillips, we discuss and debate subjective vs objective morality. Does the concept of objective morality ever make sense given “Hume’s guillotine”? Can humans ever really live as though morality is subjective? Along the way, we take detours into Bayesian epistemology vs critical rationalism.

How does ChatGPT really work? Is there a relationship between a program like ChatGPT and artificial general intelligence (AGI)? This time we review the famous paper "Sparks of Artificial General Intelligence: Early Experiments with GPT-4" from Microsoft Research as well as Melanie Mitchell's criticisms of it . Other papers mentioned: The Unreasonable Effectiveness of Recurrent Neural...

This week we have criminologist Brian Boutwell on again for part 2 of our discussion on critical rationalism and social science. Does all science share the same structure? How do you apply Popper's epistemology to social sciences? Are there laws of human nature? If humans are universal explainers, what does it mean to study our behavior? See episode 68 for a summary of Caldwell's "Cla...