How about this idea... With regards to this thing called, the arrow of time! Could the universe have different arrows of time for different regions of the universe? This regions of the universe where the Earth is, the arrow of time is going say forward. Could there be other far off regions of the universe that have the arrow of time going backwards? Imagine if the universe was composed of a forward arrow of time sub-universe and a backward arrow of time sub-universe superimposed upon eachother! If there were galaxies in regions of the universe that have the arrow of time going backwards, from our perspective instead of the stars in those galaxies emitting light, they would be absorbing light, and therefore their light would not be visible to us here in this forward arrow of time region of the universe.