Lex Fridman Podcast
Lex Fridman Podcast

#488 – Infinity, Paradoxes that Broke Mathematics, Gödel Incompleteness & the Multiverse – Joel David Hamkins

December 31, 2025

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Show notes

Joel David Hamkins is a mathematician and philosopher specializing in set theory, the foundations of mathematics, and the nature of infinity, and he’s the #1 highest-rated user on MathOverflow. He is also the author of several books, including Proof and the Art of Mathematics and Lectures on the Philosophy of Mathematics. And he has a great blog called Infinitely More.

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Transcript:

https://lexfridman.com/joel-david-hamkins-transcript

CONTACT LEX:

Feedback – give feedback to Lex: https://lexfridman.com/survey

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Hiring – join our team: https://lexfridman.com/hiring

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EPISODE LINKS:

Joel’s X: https://x.com/JDHamkins

Joel’s Website: https://jdh.hamkins.org

Joel’s Substack: https://www.infinitelymore.xyz

Joel’s MathOverflow: https://mathoverflow.net/users/1946/joel-david-hamkins

Joel’s Papers: https://jdh.hamkins.org/publications

Joel’s Books:

Lectures on the Philosophy of Mathematics: https://amzn.to/3MThaAt

Proof and the Art of Mathematics: https://amzn.to/3YACc9A

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OUTLINE:

() – Introduction

() – Sponsors, Comments, and Reflections

() – Infinity & paradoxes

() – Russell’s paradox

() – Gödel’s incompleteness theorems

() – Truth vs proof

() – The Halting Problem

() – Does infinity exist?

() – MathOverflow

() – The Continuum Hypothesis

() – Hardest problems in mathematics

() – Mathematical multiverse

() – Surreal numbers

() – Conway’s Game of Life

() – Computability theory

() – P vs NP

() – Great

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