However, if you would ask a scientist to tell you when the next lunar eclipse will occur, a prediction will be made. The prediction will be made by application of Newton's laws of gravitation to the orbital paths of the earth and the moon. People are subject to physical and chemical laws that influence their behavior. We can predict death. Life insurance companies make it their business to try to predict how long people will live.
Biologists assess health risks based on body weight, proportion of fat intake, and exercise habits.
The groundwork is already there for making predictions about people. We need to extend the techniques of prediction into the mental area, the psychic domain. We need to develop psychical laws. Psychical laws would enable us to predict how a person would react under specific circumstances. Ninety percent accuracy might be practical enough.