We have a clear line in the universe.
One day we sit in a couple. The two of them talk loudly behind. Prepod writes the formula on the board. He turns around and says to the two: “Well, you came here?” You don’t want to sit here – go for a walk, go to the cinema, and finally sing the port wine. He turns to the board. One of those speakers: I don’t drink port wine. Prepod turns around so slowly and says, “It’s time to...