babaonet wrote:In 1922, Friedmann said that the universe looks identical in whichever direction we look, and this would also be true if we were observing the universe from anywhere else(say from other galaxies).
Later, it was proved to be true by Arno Penzias and Robert Wilson of Bell Laboratory.
To be clear, "identical" in this context means that the same broad structure is observed, not that you literally see the exact same view from everywhere.
So all this is saying is that the Universe is substantially the same everywhere, and that no large section of the Universe has a different evolutionary history from any other place. That doesn't seem extraordinary at all; indeed, seeing something different is what would be surprising (and with recent measurements, there is a hint of some large scale anisotropies, which suggests something about structures that are outside the observable Universe).