Starman Universes in the cosmos is the way to go.(best terminology)
There are more universes in the cosmos than flakes of snow in an endless
storm.Like snow flakes each has its own spacetime(time frame) All have
the exact same structure. All share and contribute to the gravitation of
the intrinsic gravity.of space. Someday this gravity will be the key to
letting us know they are out there. Just like black holes gravity is the
big clue they are out there. bert