Epistemology | Nick Byrd, Ph.D.

The Bat And Ball Problem 20 Years Later

In 2002, a chapter from Kahneman and Frederick mentioned “the bat and ball problem”.

A bat and a ball cost $1.10 in total.
The bat costs $1.00 more than the ball.
How much does the ball cost?

By 2005, Frederick’s Cognitive Reflection Test paper added the lesser known Widgets and Lily Pad problems. In the intervening 20-ish years, each paper seems to have accrued over 5000 citations.

In 2023, Meyer and Frederick published a massive follow-up paper about the first problem: 59 studies, over 73,000 participants, and more pages of Appendixes than pages in the main article. As someone studying various reflection tests and interventions, I had to take a look right away. In this post, I list five initial takeaways and two things to like about the paper.

Upon Reflection, Ep. 10: Great Minds Do Not Think Alike

This time I read my 2022 paper in Review of Philosophy and Psychology titled, “Great Minds Do Not Think Alike: Philosophers’ Views Predicted by Reflection, Education, Personality, and Other Demographic Differences“. As the title suggests, various psychological factors predicted variance in philosophers’ answers to classic philosophical questions. This raises questions about how psychological and demographic differences can explain philosophical differences. There are also implications for scientific psychologists as well as academic philosophers.

Podcast: Play in new window | Download (Duration: 47:14 — 86.5MB)

Upon Reflection, Ep. 9: Bounded Reflectivism & Epistemic Identity

In this episode, I read one of my 2022 articles in Metaphilosophy titled, “Bounded Reflectivism & Epistemic Identity“. Does reflective reasoning help or hinder our judgment? In this paper, I take a middle view between reflectivism and anti-reflectivism that I call bounded reflectivism. The idea is that reflection is a tool that can be used to improve our judgment or for other purposes (such as to defend the beliefs that we consider essential to our identity—a.k.a., our “epistemic identity”).

Podcast: Play in new window | Download (Duration: 40:55 — 74.9MB)

Upon Reflection, Ep. 5: Reflective Reasoning For Real People (Dissertation Overview)

Welcome to Upon Reflection. In this episode, I review the major take-aways and findings from my dissertation titled, “Reflective Reasoning For Real People”. I explain what cognitive scientists mean by terms like “reflective reasoning”, how reflection is measured empirically, how reflection can either help or hinder our reasoning, how more reflective philosophers tend toward certain philosophical beliefs, and how reflection may help us retrain our implicit biases.

Podcast: Play in new window | Download (Duration: 15:53 — 29.1MB)

The Base Rate Fallacy

Who is more likely to be killed by a police officer in the United States: a white person or a black person? You might think, “Police kill more white people than black people in the US. So it’s the white person.” That answer contains a fallacy: the base rate fallacy. This post explains the fallacy, provides some examples, and suggests how to avoid it.

On Whether Reflection Is A Virtue

Some philosophers think of rationality in terms of virtue. For them, the rational thing to do is what the epistemically virtuous person would do. One type of reasoning that I study is reflective reasoning in which we step back and reconsider a gut reaction. So I have found myself asking, “Is reflective reasoning a virtue?” In this post, I’ll briefly consider reasons for answering “yes” and reasons for answering “no.” Continue reading On Whether Reflection Is A Virtue

The Anti-natalism Comparison: Contradiction, Equivocation, & Incommensurability

To be or not to be. That is the question. (Seriously.) David Benatar argues that it’s better not to be in “Why Coming Into Existence is Always a Harm” from his book Better Never To Have Been (2006) and follow-up paper “Still Better Never to Have Been: A Reply to (More of) My Critics“. This comparative claim seemed intuitively plausible at first.¹ After all, I lean towards non-natalism: creating new life does not seem necessarily good. However, upon reflection, that claim about bringing something into existence is different from Benetar’s comparative claim about both existence and non-existence. And the more I think about Benetar’s comparative claim, the more I find myself puzzled by it. I worry that this anti-natalism comparison involves contradiction, equivocation, and/or a false sense of commensurability. In this post, I’ll explain.

Continue reading The Anti-natalism Comparison: Contradiction, Equivocation, & Incommensurability

New Paper: What We Can (And Can’t) Infer About Implicit Bias From Debiasing Experiments

Synthese has just published one of my papers on implicit bias. As with all of my papers, you can find a link to the free preprint on my CV: byrdnick.com/cv. The final, corrected, and typeset version is on Synthese’s website and the audio version is on my podcast. In this post, you will find a non-technical overview of the paper’s main point and then the TLDR explainer.

Continue reading New Paper: What We Can (And Can’t) Infer About Implicit Bias From Debiasing Experiments

50+ Philosophy Podcasts

Philosophy takes many forms. So do its podcasts. Here are some of the most popular philosophy podcasts that I have found. I listen to almost all of them, so feel free to contact me if you have questions that are not answered in each podcast’s description below.

Continue reading 50+ Philosophy Podcasts

Unconscious Intentions Do Not Undermine Free Will

Some have said that free will is an illusion (e.g., Wegner, 2002). And some free will skeptics base their claims on evidence that experimenters can predict our decisions before we are aware of making the decision or forming an intention. This leap from pre-decision prediction to free will skepticism seems intuitive at first. Upon reflection, however, it seems odd. In this post, I’ll explain.

Continue reading Unconscious Intentions Do Not Undermine Free Will