Why do psychoanalysts believe in fortune telling?

There was once a psychologist who used a common sentence that was applicable to almost anyone to let college students judge whether it was suitable for them. Results Most college students think that this sentence describes themselves in detail and is extremely correct. The following paragraph is the material of psychologists. Do you think it suits you too?

You really need others to like and respect you. You tend to criticize yourself. You have many abilities that can be your strengths, but you also have some shortcomings, but you can usually overcome them. It's a little difficult for you to get along with other people. Although you look calm on the outside, you are really anxious on the inside. You sometimes doubt whether the decision you made or the thing you did was correct. You like some changes in your life and hate being limited. You are proud of being able to think independently, and you won't accept other people's suggestions without sufficient evidence. You think it unwise to expose yourself too much in front of others. Sometimes you are outgoing, kind and sociable, and sometimes you are introverted, cautious and quiet. Some of your ambitions are often unrealistic.

This is actually a hat suitable for anyone's head.

When evaluating his performance, a well-known technician named Xiaoman barnum said that he is very popular because the program contains elements that everyone likes, so he made "Every minute is cheated". People often think that a general description of personality reveals their own characteristics very correctly, which is called "Barnum effect" in psychology.