Does anybody here have a link or copy of the comic where somebody is explaining how utterly devastating It is to be interrupted in the middle of a 20-minute mental map where you’re figuring out the complexities and inner workings of a system and then someone interrupts you for just a quick task. And you lose all the progress that you just spent the last 20 minutes working on because you’re now distracted ? It may have been an xkcd. Honestly, I’m not certain.