Well realistically you tend to start seeing patterns after a bit. Then you end up redrawing everything as those patterns in your head. Then you develop an intui

Well realistically you tend to start seeing patterns after a bit. Then you end up redrawing everything as those patterns in your head. Then you develop an intuitive model of what is sensible and what is not. This is not something they teach you at university. It’s all narrow forward engineering and simple theoretical analysis. There is a better education in having a pile of broken shit with incorrect service manuals and fixing it when it comes to EE. Test gear is fun because you get it for nothing, fix it and then use it to fix the next thing.