Finagle's law
This
adage is the generalized or "
folk" version of
Murphy's law, fully named
Finagle's Law of Dynamic Negatives and usually rendered "Anything that can go wrong, will." One variant favored among
hackers is "The perversity of the Universe tends towards a maximum" (but see also
Hanlon's razor). The term "Finagle's Law" was first used by John W. Campbell, Jr, the very influential editor of
Astounding Science Fiction (later
Analog). He used it frequently in his editorials for many years in the 1940s, 50s, and 60s but it never came into general usage the way
Murphy's Law has. Eventually the term "Finagle's law" was popularized by
science fiction author
Larry Niven in several stories depicting a frontier culture of asteroid miners; this "Belter" culture professed a religion and/or running joke involving the worship of the dread god Finagle and his mad prophet Murphy.
See also