You guys are probably as brain dead as I am right now from writing this paradigm shift essay, so I am going to keep this one simple for my own sake as well as yours. I just want to talk about the multiverse for a little bit; nothing too detailed or anything but rather just the main idea and I wanna know what you guys think.
Science often times brings up discussion on the multiverse, that is the existence of multiple universe. This may sound like science fiction to many, but there are actually many theories out there that may prove true.
As I said in one of my prior posts, multiple universes could exist depending on the future of our universe. If the universe keeps expanding for eternity until it slowly fades to death, then there is a good chance that we exist as a lonely, sole universe. On the contrary, though, if our universe eventually collapses upon itself in the Big Crunch, leading to a second Big Bang, then there is a very good chance that multiple universes exist. This nothing we can really prove, but rather just theorize, but if our universe does eventually turn from expansion to contraction, then it is semi-reasonable to conclude that we are one universe in the long chain of universes, that countless universes existed before us, and that there are plenty more to come.
Another popular belief is that there exists multiple universes existing in right now. This would be possible if the fourth dimension did exist. It would contain all of the third dimensional universes, which would individually have no knowledge of the other three-dimensional universes nor of the four-dimensional space in which they all exist. You can imagine this by thinking back to flat land. If flatland existed in our world as a two dimensional plane, then why couldn’t multiple flatlands exist. As long as each flatland was parallel to the other flatlands, they could exist above one another in three dimensions. Because of their two-dimensional nature, flatlanders would not be able to see the other flatlands above or below them. Bump everything up by one dimension, and we could be part of a multiverse where we cannot see the other three-dimensional universes that surround us in fourth-dimensional space.
So what do you think? Is it just science fiction, just a desperate hope to find other life out there other than us, a load of bull shit? Or can it actually be possible?