If the code is brittle to change, it must not have been particularly safe in the... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		striking 32 days ago \| parent \| context \| favorite \| on: Git: Introduce Rust and announce it will become ma... If the code is brittle to change, it must not have been particularly safe in the first place, right? And if it's well-tested, maybe that condition is achieved by the use of a test suite which could verify the changes are safe too?

1718627440 32 days ago [–]

A test will never catch every bug, otherwise it's a proof, and any change has the probability to introduce a new bug, irregardless of how careful you are. Thus, changing correct code will eventually result in incorrect code.

striking 32 days ago | [–]

I'm not sure if that's how probability works.

Consider applying for YC's Winter 2026 batch! Applications are open till Nov 10
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact