Parallel Universes

I call the fictional world in which my stories occur the Medb hErenn Universe. I chose that name because Medb was the first character to reside in that universe, but it is also the home of Eile and Sunny of Team Girl, and Sir Differel Van Helsing.

Like all fictional universes, it has certain rules that it must adhere to, and since it is very much the same as our primary universe, it obeys the same physiochemical laws. This is the first of a series of posts in which I describe some of these laws to show what the MhE Universe, and our own, is like.

Long a staple of certain forms of science fiction and fantasy, parallel universes, or multiverses as they now tend to be called, are gaining scientific respectability as evidence for their existence mounts. This essay will describe the basic ideas behind the concept in a way that hopefully will make them easy to understand.

There was a time when multiverses were thought to be separated by higher dimensions, such that there might be many other universes in existence, but we could never find them because we could not see through the dimensional barriers. New evidence has, however, largely changed all that. Gone are the higher dimensional planes for the most part; parallel universes are now separated by extreme distance and the expansion of the universe.

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