In the sense that the Cosmic Microwave Background (CMB) is visible from every point in space. No matter where you are you can determine your position relative to the CMB, making it a common reference point for the entire universe.
I understand that it is visible from all of space, but doesn’t it look the same from all points in space? Wouldn’t everyone looking at it simply conclude “I am at the center of the CMB”? How would you use it to specify a certain point?
In the sense that the Cosmic Microwave Background (CMB) is visible from every point in space. No matter where you are you can determine your position relative to the CMB, making it a common reference point for the entire universe.
I understand that it is visible from all of space, but doesn’t it look the same from all points in space? Wouldn’t everyone looking at it simply conclude “I am at the center of the CMB”? How would you use it to specify a certain point?