The principle of homogeneity, also known as the cosmological principle, states that the universe is the same everywhere on a large scale. This principle is supported by many observations, including the fact that the cosmic microwave background radiation is remarkably uniform across the entire observable universe. The homogeneity of the universe is a fundamental property of spacetime and is thought to be a consequence of the laws of physics being the same everywhere. This principle has profound implications for our understanding of the universe and its history, as it suggests that the universe is governed by a set of universal laws that apply everywhere, regardless of location or time.
