A fortune teller knows his past _ A fortune teller knows the secrets of the past.

Can a fortune teller really figure out what you have done before?

A fortune teller can work out what you have done before. This kind of thing can't be explained by modern science. Maybe science hasn't reached that field yet. But it also has disadvantages. You cannot know the future. If a fortune teller calculates the future with you, he is lying. You can entertain such things, but you can't believe them all.