I liked the article. One thing that I think was missed is that the engineers can understand the circuit because they designed it. We know what the capacitor sym

I liked the article. One thing that I think was missed is that the engineers can understand the circuit because they designed it. We know what the capacitor symbol represents because we designed a circuit that only depends critically on a small number of parameters represented by that symbol (and maybe an accompanying bill of materials). We chose design elements that are, themselves, understandable as a language, and laid out the diagram with a prior knowledge of what ideas we were trying to convey. Having had to do so, coming up with the schematic by inspecting the circuit is much more difficult.