With David Bowie and Alan Rickman dying within a few days on each other (RIP), I've heard some people say, "Death always comes in threes, I wonder who's next."
What is the origin of this phrase? How did this confirmation bias come about?
Confirmation bias, also called confirmatory bias or myside bias, is the tendency to search for, interpret, favor, and recall information in a way that confirms one's beliefs or hypotheses, while giving disproportionately less consideration to alternative possibilities.
I'm just interested to know how did this phrase came into use.