“Extraordinary claims require extraordinary evidence.”
What this quote means
Sagan's quote is a fundamental principle of critical thinking and the scientific method. It warns against sensational claims lacking solid evidence. In a world full of misinformation, it's a call to vigilance: the more surprising a statement, the more rigorous verification it demands. This applies to conspiracy theories as well as scientific discoveries, reminding us to always evaluate evidence before accepting an idea.
How to apply it daily
Before sharing an amazing claim, check its sources and look for reliable evidence to support it.
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