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Judgment & ambiguity · Calibrating confidence

In code review you have a nagging feeling a concurrency change is subtly wrong, but you can't point to a specific failing case and the author is confident and blocked on you. Do you approve, block, or something in between?

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I don't approve on a hunch and I don't block on one either — I convert the unease into something concrete within a time budget, because a vague 'feels wrong' is unfair to a blocked

The full answer: structure, worked example, likely follow-up.

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