Goldilocks principle

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The Goldilocks principle is named by analogy to the children's story "Goldilocks and the Three Bears", in which a young girl named Goldilocks tastes three different bowls of porridge and finds she prefers porridge that is neither too hot nor too cold but has just the right temperature.^[1] The concept of "just the right amount" is easily understood and applied to a wide range of disciplines, including developmental psychology, biology,^[2] astronomy, economics^[3] and engineering.