It is estimated that between 69 billion and 110 billion people have populated the Earth since about one million years ago. It has also been estimated that 75% the total Earth population (that is 85 billion people for the past 1 million years), believe in some sort of religion or another. These people might be simply superstitious, traditionally coming from generation to generation. Or they blindly rely on the opinion of others, without even checking their validity or accuracy. There are hundreds of human misunderstandings of thousands physical, chemical, electrical, environmental, astronomical, nuclear, and other principles, effects and phenomena, usually adherent to those who study them and not to those who do not.
See for yourself if phenomena shown on the Phenomena Wall below can make you superstitious?