There is a joke that I don’t understand. Can someone please explain it~~~

An important sign of a bad joke is that the listener will not laugh immediately after it is told, but will take a while before they can laugh. At the same time, this kind of laughter is not strong or lasting. It expresses a cause or result that is complex or simpler than conventional. Generally, cold jokes have two parts: cause and effect. Therefore, when people hear a joke, they will think conventionally and generally will not expect the cause or result of the joke.

Since the second half of a joke is always surprising, the more people who have a positive view of the joke hear the joke, the colder it will become. The reason is that the second half of a bad joke is always unexpected by the listener. The listener always hints to himself, "You can't guess the second half of the joke", but people's curiosity keeps the listener guessing. The final result is the lengthening or deepening of the thinking process of "concentration and thoughtful engagement". (Note: This situation is based on the listener having a positive attitude towards the jokes)

Because most of the jokes are boring, have strange content, and have little practical significance, some people are indifferent to them. The more jokes there are, the less humorous they are. The reason is opposite to the one above that is unexpected to the listener. When the listener has a negative attitude towards a bad joke, after listening to the first half of the joke, the listener will have a psychological suggestion that there will be a "second half" of the joke that is extremely boring and not funny. At this time, the listener will not be curious about the topic and will not focus on the joke. The result is that the thinking process of "concentration and thinking engagement" is shortened or absent. At this time, instead of feeling cold, the listener will feel that the person telling the cold joke is boring and has nothing to do. (Note: This situation is based on the listener's negative attitude towards the cold joke)