This is a Lexicon entry: the mechanism, when it shows up, and the countermeasure. The full correction, with real-world cases and the audit prompt, hasn't been written yet.
Definition
The rule that if something cannot be settled by experiment or observation, it is not worthy of debate.
When it shows up
Philosophical disputes, religious debates, interpretations where evidence cannot settle the matter.
Failure mode
Arguments about unfalsifiable claims can continue indefinitely without progress. No evidence can resolve them so they don't resolve; participants burn time and relationships on questions that can't be answered.
Countermeasure
If a dispute cannot be settled by any possible evidence, it's not worth extended argument. Acknowledge the position-difference, move on. Unfalsifiable beliefs are for private holding, not for dispute resolution.
Related traps
Also connected in the map2 more, locked
Credit & first seen
DiscoveredAlder, M. (2004).Newton's Flaming Laser Sword.Philosophy Now 46 source ↗
Also revealed
Entry #529 of 631 in The Lexicon · see the full Lexicon