Fortune tellers, prophets, spiritual mediums and all the likes are never perfectly right. They are considered to be when people fill in the blanks and MAKE it true.

"There is a dead man standing next to you, he is bald and around 50 years old"
- "Oh, my uncle Joe was bald and he died at around 50! It MUST be Joe! that's amazing!"
"Yes! It's Joe... Joe says he's proud of you!"

"An earthquake will hit in Rome on the 11th in 2011!"
- "Oh wow, it hit in Southern Spain so he must've meant that! Amazing!"