Since time is said to be the fourth dimension, I wonder how would time "look" like from the perspective of an outsider observing our whole universe....
Would an outsider be able to see the whole history of the universe?
Also, let's say we are outside our galaxy. Is the whole galaxy in the "present" only for us, or for the whole galaxy? Or we are seeing stars at different times?
Would an outsider be able to see the whole history of the universe?
Also, let's say we are outside our galaxy. Is the whole galaxy in the "present" only for us, or for the whole galaxy? Or we are seeing stars at different times?