Is fortune telling credible? Does everyone believe it?

How can we know if it is credible without studying it? I think it's credible. It is impossible for a wise man like Zhuge Liang, the best literati of all ages, to study it and write it as data in Sikuquanshu. There must be something credible about this.

Faith without superstition is the right way, wealth depends on the sky and well-off depends on people.