What is the biggest difference between psychology and fortune telling?

Fortune-telling: ancient psychology based on daily experience. Part of the branch of ancient philosophy. Commonly known as "official physiognomy", "palm reading" and "bone reading")

Psychology: Modern psychology based on scientific theory and experimental parameters.

So the biggest difference between "fortune telling" and "modern psychology" lies in the difference of time and age.

They are all created by the innate creativity and infinite imagination of human beings, and there is no essential difference.

Because of the huge differences in age and technology, the two are not the same.