Magnificent post. I would mod you up, but SlashDot hasn't given me mod points in over a decade.
A dumb question for you, but one that I could not answer for myself by reading the article: How is it that the universe is accelerating away from center? Is there a huge amount of matter outside our universe that is pulling the outer bits away? Does the radiation from the inner parts create pressure on the outer parts? Or is there more relativity trickery at work here that I do no grasp?