If universes are being spawned by a mother universe .... ... would the mother universe be aware of its children? This concerns the idea that our universe could have been spawned by an upper-level universe somehow, and we can't rule out the possibility that daughter universes could be spawned now and then from black holes in our own universe. On and on. My assumption is that the mother universe would likely be unaware of its daughters, because they would exist in dimensions other than the mother's spatial dimensions. I'd also guess that the daughters would be unaware of their siblings because their dimensions would also be different, and even gravitational effects wouldn't be felt between siblings or between mother and child. In other words, this is interesting to consider but even if there is a multiverse I doubt that there could be any interaction between universes, so it could never be proved.