Finagle's Law
Version 1.0.0 · Updated 2026-07-28
CORE DEFINITION
Finagle's law of dynamic negatives (also known as Melody's law, Sod's Law or Finagle's corollary to Murphy's law) is usually rendered as "Anything that can go wrong, will—at the worst possible moment." The term "Finagle's law" is often associated with John W. Campbell Jr., the influential editor of Astounding Science Fiction (later Analog).
SCAFFOLDING EFFECT
Reduce cognitive load
Finagle's law of dynamic negatives (also known as Melody's law, Sod's Law or Finagle's corollary to Murphy's law) is usually rendered as "Anything that can go wrong, will—at the worst possible moment."
Anchor fast decisions
A variant of Murphy's law: anything that can go wrong will go wrong, and at the most inconvenient time. It often carries a self-deprecating tone, emphasizing that systems tend to fail in the worst possible way.
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Finagle%27s_lawverified
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