A “bad test” isn’t careless—it’s intentional. It’s a test designed to fail, to push systems beyond comfort, and to expose what polite testing hides. Without bad tests, we only learn how things behave when everything goes right, which is rarely how the real world works. Breaking things on purpose reveals true limits. It shows where assumptions collapse, where safeguards are missing, and where systems fail silently instead of loudly. These are the most dangerous failures, because they create false confidence. A system that survives only ideal conditions is already broken—it just hasn’t been challenged yet. Bad tests also compress learning...

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