OK, so here is my question: why do we automatically assume that the red shift is due to distant stars receding from us? Maybe light just naturally gets redder as it gets older. After all, we're talking about thousands of light years, here. And the light from distant stars has to pass through a lot of gravitational fields to get here. Wouldn't that sap away some of the energy? It wouldn't slow the light down (I don't think that ever happens), but maybe it would cause a little wave lengthening, a little red shift, shall we say?
Now, why should anybody care about whether the universe is expanding or not, as if it would actually affect us during our lifetimes, or even affect our species during our tenure on this plane of existence? That, my friends, is another rant entirely...
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