Don't worry you're not alone!But whenever I start reading Simon's electronics explanations, I feel like a complete dunce.
My understanding of electronic theory is tenuous at best. TBH I hadn't even thought about the "how's and why's" of two caps affecting the overall circuit. Just how they rudimentally relate to the individual pickup positions.
I missed failing Electronics in high school by the skin of my teeth. I wish I'd paid more attention now... and probably should have turned up more often too.