"This is the most important joke I've ever heard. Niels Bohr, the founder of Quantum Physics, had a friend to dinner. As the friend left, he noticed a horseshoe nailed above Bohr's front door. He said to Bohr, accusingly, "Niels, you're a great scientist. You can't believe in superstitions." Bohr answered, "I don't, but apparently it works anyway."As with confirmation bias, we tend to lean toward superstitions that benefit us."