# Episode 128: Induction’s Immunizing Strategy

Page: https://stenobird.com/podcast/the-theory-of-anything-859886/episode-128-induction-s-immunizing-strategy
Text version: https://stenobird.com/podcast/the-theory-of-anything-859886/episode-128-induction-s-immunizing-strategy.md
Podcast: [The Theory of Anything](https://stenobird.com/podcast/the-theory-of-anything-859886)
Published: 2026-01-06T12:00:00+00:00
Episode link: https://podcasters.spotify.com/pod/show/four-strands/episodes/Episode-128-Inductions-Immunizing-Strategy-e3c67ar
Audio file: https://anchor.fm/s/14b6fc10/podcast/play/112450331/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2025-11-10%2F66354975-e0a1-277c-a252-e002e7b65465.mp3
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JSON: https://stenobird.com/v1/public/podcasts/the-theory-of-anything-859886/episodes/episode-128-induction-s-immunizing-strategy
Duration seconds: 3530

## Resource

In this episode, Bruce explores his extended conversation with philosopher and inductivist Kieren, focusing on Kieren’s claim that Popper’s Critical Rationalism ultimately depends on induction. Bruce then makes a striking counter-claim: that Kieren’s entire argument amounts to stripping all substantive content from his “theory” of induction and turning it into an unfalsifiable concept—essentially a word game, a kind of argument-by-tautology designed to immunize the theory from criticism. Or put another way, Kieren is turning his theory into a concept because concepts are unfalsifiable. This leads Bruce into a deeper examination of what induction actually is—and what it isn’t. Why is “induction” such a confusing, multidimensional idea? What is the real point of contention between critical rationalists and inductivists? Did Popper truly lack a notion of “support,” as Kieren argues? And what did Popper actually say about justification—did he really reject every form of it? And to make things even more provocative: do CritRats rely on similar linguistic maneuvers to shield their own favored theories from criticism? ⁠⁠Support us on Patreon

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## Transcript

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