alt Hacker News> I wonder if, for instance, optimizing for speed may produce code that is faster but harder to understand and extend.
Superoptimizers have been around since 1987: https://en.wikipedia.org/wiki/Superoptimization
They generate fast code that is not meant to be understood or extended.
But there output is (usually) executable code, and is not committed in a VCS. So the source code is still readable.
When people use LLMs to improve their code, they commit their output to Git to be used as source code.