There's a lot of truth in that. When I started, we had an incredible engineering guide book that was an absolute treasure. It covered wiring, connectors, schematic generation, component selection, environmental considerations, etc. Sometime afterwards, it disappeared when the organization "re-organized." If you weren't one of the lucky ones who kept a copy, it was lost to eternity. Unfortunately, those were the days of the typewriter so there is no online copy, at least not that I've found that has been uploaded. Over the years that followed I could see the new engineers coming in repeating mistakes and relearning the hard way because they didn't have the benefit of a mentor or proper guidance. I called it the "divide by zero" problem, when will we ever learn? 🙂