About that spoiler, yes, they could really go on like that forever.
So good-bye Fringe, you little sci-fi oddball. Often frustrating, often brilliant, an acquired taste. I think that if the show had been more successful, and so a higher budget, we would have seen a little more Olivia superpowers, dimension changes, time travel and the like. As it was, the show knew it had a small, but hardcore audience, so it reveled in its eccentricity.