Scientists have developed a theory about the conditions in the universe before the Big Bang which actually provides testable predictions. Scientists have for years been fascinated by the, for want of a better phrase, "bouncing" universe. Infinite collapse and expand cycles appeals to the aesthete in them, I guess. Unfortunately every previous test for this scenario (that I know of) has failed, so I'm not holding out a lot of hope for this one either.

Still, it'd be neat to know, either way.