After reading the above article, you know that somewhere early in the design phase, someone made an error. A small mistake in the context of all the engineering required to build a submarine. However, the fact that nobody caught the error means that the final design and fabrication created a very expensive anchor that will now rest on the ocean floor if not fixed.
If we embrace the assumptions that everything that was completed before our part of the project was accurate and correct, then we are in for a few surprises. Nobody intentionally hands us the error-strewn project. Our willing to revisit the work we inherited often gives us a greater appreciation for the depth of thought but also the embedded faults.
We are better for the proof-readers, editors, curious minds, and insightful questions. A culture of curiosity builds on that which went before and hopefully identified the moment we made a wrong-turn or fateful decision.