Many of us are probably aware of the suggestion, made about three years ago, that the Fine Structure Constant may have changed slightly in the distant past, and that may mean that the speed of light changed slightly in the distant past. If you aren't aware of the suggestion, try Speed of Light, Other Constants May Change.
I also have trouble with the dark energy\matter issues and feel there will be a new theory that will explain the cosmos observations without needing to invoke them. Perhaps this will shed 'light' on the issue as well.
we are limited in our ability to understand by our ability to understand
RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}