I do wonder about one thing.
What if what we think is happening is not what's really happening? What if the universe isn't
accelerating outward? If our observations are wrong about that then there is no need to create 'dark energy' to come up with the missing force to explain the observed acceleration.
Light can play games as it traverses over vast distances. And isn't red shift the only real 'evidence' of the increasing acceleration? And unless we are exactly in the center of the universe, wouldn't celestial objects at similar distances in opposite directions display differing degrees of red shift or, if they are moving with a lateral component, substantially less red shift?
I checked out a book to read the other day - I actually requested it be delivered to my branch:
Warped Passages by Lisa Randall. Problem is, its 512 pages of thick, dense material and I just can't manage a book that big right now so I grudgingly returned it and its been nagging at me ever since.
I bet there's some good information in there. She's leaning towards the multi-dimensional model which ties in with string theory and all that. I've read some good articles about that but have to confess that I don't think I really
get it.