Logging is meant to make production systems easier to understand. At scale, it often does the opposite - obscuring causality, distorting timelines, and changing system behavior in subtle ways.
Some bugs only surface when systems experience real traffic. This article examines why production load changes behavior, even when code paths appear identical.
Debugging is not about guessing or trial and error. It is a systematic skill that relies on observation, reasoning, and understanding how systems actually fail.