Superstition is the belief that one clings to despite all the evidence to the contrary.
A key mechanism here is the midpoint-mechanics, since it excludes everything that does not fit in with the momentary goal of superstition.
Thus, it produces a self-fulfilling prophecy, because one only perceives what confirms superstition - not what speaks against it.
Incidentally, this also applies to horoscopes, prophecies, etc:
© It is permitted to use or reproduce this content without restriction on the condition of naming my website www.karlheinzhermsch.de and without changing or shortening the texts. (Please inquire about exceptions via my imprint.)