Goldilocks principle

== English == === Etymology === Referring to the girl in the fairy tale who found one bowl of porridge too hot, one too cold, and one just right. === Proper noun === Goldilocks principle (physics) The observation that, out of the great range of all possible conditions on Earth, the actual conditions are all “just right” in order to support life. ==== Related terms ==== Goldilocks planet Goldilocks zone