by thenewgreen
“Go then, there are other worlds than these.” -Stephen King, The Dark Tower
One of the most exciting and enticing topics to speculate about is the idea that our reality — our Universe the way it is and the way we experience it — might not be the only version of events out there. Perhaps there are other Universes, perhaps even with different versions of ourselves, different histories and alternate outcomes, than our own: a multiverse of sorts. For our Ask Ethan column, people of all levels-of-expertise have sent in their questions and suggestions, but this week’s selection comes from a fellow astrophysics researcher, Amanda Mashburn, who asks the following:I’m curious for your opinion on Multiverse theory. At AAS there was a plenary talk on parallel worlds, specifically if they’re science or sci-fiction. What are your thoughts on the subject?