From the bell tower of ten years of teaching experience, as well as 7 years of experience organizing international conferences, I formulated this empirical law:

The amount of knowledge received is inversely proportional to the square of the distance from the source to the recipient.

Corollaries:

— at lectures, conferences, and seminars, you should sit in the front row;
— in lab classes, the students who show the best knowledge will be those sitting closer to the computer or the lab model;
— those who did not come to the lecture or stayed outside the door will learn nothing;
— the person who approaches the lecturer individually with a question will be generously rewarded.

The rational explanation is obvious: as you move away from the source, the level of noise and objective obstacles that interfere with acquiring knowledge increases.