The age of this universe really doesn't apply here. It's a repetitive process anyway, infinite big bangs being like a beating heart. And in infinite locations throughout the cosmos as well. Or another way of looking at it, when a portion of God's consciousness in aether space becomes sufficiently bored with itself, a Big Bang occurs. The reverse of that would be that a universe or some portion thereof becomes sufficiently balanced once more to coalesce back into aether(dark energy) space. Sorry to all physicists, no infinite expanding and deep freeze and extinction of all life. Neither a compaction back to a non-dimensional singularity and extinction of all life by roasting and compacting. Consciousness is forever and that's a lot older than universes. It always was that way. But I'm not a physicist, just a wild science fiction writer, what the heck do I know?