english: Probably the least-appreciated aspect of this is the notion that the very first time that you're trying to get your brain around a new concept, the very last thing you need is another human being saying, "Do you understand this?"
non_english: спочатку, найпершого разу, коли ви намагаєтеся обмізкувати якесь нове поняття, ви найменш за все хочете, щоб хтось інший вас запитав: "Ну що, зрозумів?"