What if light bleed into itself as it exists in an expanding universe? Does light expand with the universe?
what if light is expanding with the universe as the universe gets stretched at a accelerating amount thru time. Due to this shift it may be that light starts overlapping with the light that is moving in its same direction more and more the longer that light exists in an expanding universe. Because expanding light (in addition to turning light red over time) would cause light to take up more space the longer it exists and since older light has been expanding longer then new light, older light is going to be more 'crowded' with light that did not get created at the same time but was close enough to EVENTUALLY get stretched into the same space.
If your confused why light expanding would eventually reach more light that is expanding at the same rate of speed remember that some light in this scenario has been getting stretched longer because it came into a expanding universe first and don't forget all light is getting stretched in all directions.
This might be causing both a higher density of light and a more simplified image the further light has to travel to be seen. If the universe is really big enough the light from far enough away will start seeming so simple and so dense it could seem uniform.