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Copernican principle

The Copernican Principle is the philosophical statement that no "special" observers should be proposed. The term originated in the paradigm shift from the Aristotelian model of the heavens, which placed the Earth at the center of the Solar system because it appears that everything revolved around the Earth. Nicolaus Copernicus demonstrated that the Earth is not, in fact, in the center of the system and the motion of the heavens can be explained without assuming that we are observing from a special position.
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