extraordinary claims require extraordinary evidence
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Outlandish and unbelievable claims must be followed by exceptional evidence to be considered acceptable in rational discourse.
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “extraordinary claims require extraordinary evidence” mean?
Outlandish and unbelievable claims must be followed by exceptional evidence to be considered acceptable in rational discourse.
Is “extraordinary claims require extraordinary evidence” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.