What Casey Muratori thinks about vibe coding

@casey-muratori · 37 positions · On ppll ↗

Game and engine programmer, creator of Handmade Hero and of the Computer Enhance course on performance-aware programming, and a long-standing critic of object-oriented design orthodoxy. He worked on the user interface of Jonathan Blow's The Witness, which is the codebase his writing on compression-oriented programming draws its examples from.

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1 dated position, 2026, in their own words. Our reading of what Casey Muratori has said — not written or endorsed by them.

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1. 26 Aug 2026

   Our readingRefusing to write code with AI can be a philosophical decision rather than a productivity one: the reason to program something is that you want to program it.

   Their wordsit's more about what do you want to do? Like what why are you spending this time, right? It's a philosophical question, not a productivity question.

   ↗Why performant code matters (but gets widely ignored), with Casey Muratoriyoutube.com 24th of 26 in this recording