How much scientific truth does folk fortune telling have?

There is no scientific reason. The fortune teller told 65,438,000 people this way, and 99 of them thought it was wrong and didn't take it to heart. But the one who happened to be said was shocked and thought: this is amazing! But you know, most people are wrong! If there is scientific reason, then the fortune teller should have a success rate of 100% for everyone, and it is unscientific to make a mistake once.