I am stuck on a few cosmological points I could use some help on. The first being "redshift" as an indication of inflation. To me red shift just seems like it's a result of the degradation of light quanta over long distances. Since light slows down in environments close to absolute zero, its fairly straight forward that the fluctuations in speed over vast stellar distances would have this effect. Why is this wrong ? The second point I have trouble with in regards to modern cosmology is in regard to the impact of quantum theory on the standard model. It seems to me that if quantum mechanics is accurate, the universe is potentially just a set of all outcomes relative to an observer at a given point of reference. So that we live in a universe where all "possible" outcomes are equally real. In other words anything that could exist does exist, we just unfold the universe we experience based on local actions. If this viewpoint has so much support, then why isn't more credence given to cosmological theories that support this notion, rather than continuing to hunt for things like dark matter to save the anthropomorphic standard model?