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Where Does Bad Code Come From?

Molly Rocket · 282.5K views · 2021-11-02 · 42:21

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Overview

Casey Muratori's invited lecture on where bad code comes from, rebroadcast from a Twitch stream. He critiques conventional wisdom such as SOLID and Clean Code and argues about how those habits lead to slow, poorly structured software.

On Hacker News

HN commenters cite it as a sharp critique of SOLID, Clean Code and 'non-pessimized' programming, and as context for why software is getting worse.

Recommended by 1 HN people across 1 months · HN mentions 2021–2023

Topics

Software performance & optimizationSoftware architecture & design
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clean codesolidcode qualityperformancecasey muratori

What people said

_hao · 2022-01 · Recommendation

There's a good take on this by Casey Muratori - [VIDEO] And I agree with him. Things like SOLID and "Clean Code" really are just buzzwords nowadays that don't mean anything.

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kleiba · 2023-12 · Reference

This topic is one of Casey Muratori's (of Handmade Hero fame) pet peeves - here is a talk on it he recorded for youtube: [VIDEO]

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_gabe_ · 2022-07 · Reference

I think they used that term on purpose. Non-pessimized in this case is the same as optimized, and I believe it's a reference to this video [VIDEO]

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Sources

Video by Molly Rocket, played through YouTube.

Data and selection notes

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HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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