# extraordinary claims require extraordinary evidence

> statement about the burden of proof made by various writers throughout history and famously cited by Carl Sagan on the television programme Cosmos

**Wikidata**: [Q27963927](https://www.wikidata.org/wiki/Q27963927)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Extraordinary_claims_require_extraordinary_evidence)  
**Source**: https://4ort.xyz/entity/extraordinary-claims-require-extraordinary-evidence