# Amdahl's Law for LLM generated code

> Source: <https://news.ycombinator.com/item?id=48278179>
> Published: 2026-05-26 11:21:24+00:00

LLMs may theoretically be able to generate millions of correct lines of code.

But for any important code the only way to know that it's correct is to hand-audit every line, which is harder than writing every line because this allows you to build a conceptual hierarchy and model within which you can think about the code.

So there's a fundamental limit to the speedup from LLMs when writing anything you care about.

(The main objection will be what about when you have a human engineer working on your behalf. But this is a distraction: sometimes you can fully trust an engineer, which is not at all true for LLMs.)

Comments URL: [https://news.ycombinator.com/item?id=48278179](https://news.ycombinator.com/item?id=48278179)

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