Extraordinary claims require extraordinary evidenceExtraordinary claims require extraordinary evidence
Common
Rarity: Common
The most frequent rarity: most Wikipedia articles become Commons.
Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.
At a glance
- Class
- Notion
- Domain
- Science and technology
- In collections
- Nobody has pulled it yet.
What Wikipedia says
"Extraordinary claims require extraordinary evidence" (sometimes shortened to ECREE), also known as the Sagan standard, is an aphorism popularized by science communicator Carl Sagan. He used the phrase in his 1979 book Broca's Brain and the 1980 television program Cosmos.
Excerpt from the Wikipedia article “Extraordinary claims require extraordinary evidence”, under the CC BY-SA 4.0 license. Read the article on Wikipedia
Image: Kenneth C. Zirkel, CC BY-SA 4.0, via Wikimedia Commons.
Open free boosters and add Extraordinary claims require extraordinary evidence to your collection.
Play for free


