Whoever is telling you of the future. especially those who do fortune telling and the like, are actually doing it using two different methods simultaneously. They use the common sense on the general trend of cause and effect. Secondly, they use ambiguous words presented in a hypnotic way that will instill within your subconscious, key words from their spoken sentences. During the course of living our daily life, these very words will surface from your subconscious mind and we tend to link these with the 'astrologer's prediction'.