Fortune-telling is a folk custom with a long history that exists in many cultures. The purpose is to try to predict an individual's future or reveal destiny through various methods such as astrology, palmistry, and fortune-telling. However, from a scientific point of view, fortune-telling is not considered a way to accurately predict the future. There are several reasons why fortune-telling lacks scientific basis: 1. **Unproven methods**: The methods used in fortune-telling usually lack scientific verification and reasonable explanatory basis, and have not been subjected to systematic scientific experiments to verify their effectiveness. 2. **Self-fulfilling prophecy**: Some people may subconsciously act in certain directions after fortune-telling, causing the fortune-telling "prophecy" to appear accurate. This phenomenon is called a self-fulfilling prophecy. 3. **Vague and universal language**: Fortune-telling often uses vague and universally applicable language, which enables many people to find parts of these prophecies that fit their own situation, the so-called "Barnum effect". 4. **Selective memory**: People tend to remember accurate or partially accurate predictions in fortune-telling, while ignoring inaccurate or irrelevant parts. In general, fortune-telling can be regarded as a form of entertainment or cultural tradition. But when accurate predictions and evidence-based decisions are needed, people should rely on scientific methods and rational analysis.