A couple of concepts that I have doubted. And now many physicists doubt them also.
BBC: Future: What if the Universe has no end?
In this article is a part on Roger Penrose, who predicts that almost all matter in the Universe will be be absorbed by huge massive black holes, which will evaporate and disappear through Hawking Radiation. Then the universe will basically be made of photons and become a singularity (which is what the universe was at the time of the Big Bang).
Something to think about - Photons, or light, do not experience time (current theories of physics state so), and thus, are not affected by distance.
I wrote a related post. Maybe a decade ago? Seems Roger Penrose theory is gaining recognition.
