Copernican principle
Principle that humans are not privileged observers of the universe / From Wikipedia, the free encyclopedia
In physical cosmology, the Copernican principle states that humans, on the Earth or in the Solar System, are not privileged observers of the universe,[1] that observations from the Earth are representative of observations from the average position in the universe. Named for Copernican heliocentrism, it is a working assumption that arises from a modified cosmological extension of Copernicus' argument of a moving Earth.[2]
Unsolved problem in physics:
Are cosmological observations made from Earth representative of observations from the average position in the universe?