memes and false significance

Suppose you observe something and ascribe to it some specal significance out of scale with the actual event due to the nature of the observation. For example, almost any form of divination, fortune cookies, and the like. Is there a name for that sort of psychological irrationality?

I finally broke down and did the page 23 meme where you grab the nearest book, turn to page 23, read the fifth line, and read your fortune. Mine read “This last relation is Bayes’ rule, and it will play a crucial role in our thinking about the neural code.” I think these things are bunk, but that sentence sounds suspiciously like a forecast for my life.