Even if we theorise there to be a universe contracting and expanding, or a Big Bang, it might be impossible to actually “see” it. The reason would be found in Ecological Psychology.
Only when Ambient Light has structure does it specify the environment. There has to be differences in different directions, for it to contain any information. Perfect symmetry, maximum entropy, is theorised to be a whole bunch of homogeniety in layout, distance between particles, etc. If we have a medium that is perfectly evenly distributed, we do not have difference. So how could we ever “see” it?