Superstition Sells

When in Rome, notice what romans do. Want to do business in India. Superstition works. Even educated people believe in astrology, numerology , tarot and a host of other works. These are ancient healing methods which people have faith in. Even west has taken cue from India and Ayurveda is big business in US. They also think Yoga works andLearn Indian Music. Cross-cultural fertilisation begets enriched minds. Even Americans loose billions of dollars due to scare from 13 number, thinking it to be unlucky. Looks like irrational human behaviour is here to rule the roost be it 18th century or 21st century.
"By the way, is today 13th the Friday..Uh"?