It would be great to have not just a diamond eye, but also a psycho-X-ray machine that could instantly illuminate a conversation partner and reveal whether it's worth dealing with them. Such a mega-function would be welcomed by both businessmen closing large deals and singles searching for their better half. Unfortunately, technology has not advanced that far yet. However, psychology has. Researchers from the University of Nebraska conducted a study and identified the one question whose answer can reveal a lot about a person's personality and character. What do you think about… (name)? The essence is that people often see in others a reflection of themselves. If you ask what a new acquaintance thinks about someone (regardless of who), the selfish person will immediately latch onto the selfish traits of the other person, the good-natured one will note softness, warmth, friendliness, the narcissist will see arrogance, the tyrant will notice aggressiveness, and so on. The researchers noted that those who evaluated people positively were emotionally stable individuals who felt happy. Conversely, those who focused only on the negative and eagerly listed all the shortcomings of the person in question were, to put it mildly, not the most pleasant individuals. "A person whose world is painted in black sees others in the same way," the researchers concluded. "This tendency alone indicates a higher likelihood of depression or other psychological disorders in the surveyed individual."