" These failures are inevitable because the world is complex and we will never fully understand its subtleties. The model, as social scientists often remind us, is not the system. Failure is thus a signpost. It reveals a feature of our world we hadn’t grasped fully and offers vital clues about how to update our models, strategies, and behaviors. From this perspective, the question often asked in the aftermath of an adverse event, namely, “Can we afford the time to investigate failure?,” seems the wrong way around. The real question is, “Can we afford not to? "

― Matthew Syed , Black Box Thinking: Why Some People Never Learn from Their Mistakes - But Some Do