Is it possible that there are other worlds or universes that we cannot see or detect?
Up until the 17th century humans had no idea that complex microscopic worlds teeming with life existed. I wonder what went through the minds of the first persons to see hydra, amoeba and paramecia?
What if there are other invisible universes that we have not yet discovered?
Who knows, maybe there is another “Anton van Leeuwenhoek” sitting bored in a science class somewhere. Maybe he or she will find a way to discover a dark matter universe.
Science fiction is a perfect way to explore questions such as this.