One or more of three results can come from the engineering exercise of trying to keep something from breaking in the first place: 1. You could know the solutio

One or more of three results can come from the engineering exercise of trying to keep something from breaking in the first place: 1. You could know the solution, but it would be too heavy. 2. You could know the solution, but it would include more parts, each of which would need the same process on it, and the process might fail the same way 3. You miss something and it fails anyway, so your "what if this fails" path better be well rehearsed and executed. Real engineering is facing the tradeoffs head on, not hand waving them away.