Many people believe that parallel universes exist and that somewhere out there in several places is another you carrying out a different task, completing a different day. Others think it’s purely a work of science fiction, but let’s think about it for a moment and consider if parallel universes do exist, is there ever any possibility of us traveling there?
There are many different kinds of parallel universes that are said to exist. One type is based on the idea that there’s another universe out there exactly like the one we are in now, with doppelgangers that represent us having made all the right choices along the way and effectively living the life we always dreamed of. Or instead, maybe it’s just a case of there being a kind of multiverse. Will we ever really know?
What if there was an infinite universe? Would this mean that somewhere out there is a wedge of space-time that is identical to the one we exist in? Or, are there some bubble universes out there that were created when the universe expanded so fast that pocket spacetimes broke off and became their own separate universes. Andrei Linde, a theoretical physicist at Standford University, says, “Every experiment that brings better credence to inflationary theory brings us much closer to hints that the multiverse is real.”
There are other possible parallel universes too. According to the many-worlds theory of quantum mechanics, we’re already living in a sea of infinite potential, but the chances of being able to visit one are probably nonexistent. Its physically impossible to travel fast enough to reach the far pockets of an infinite universe, so when we’re considering universes even further away, it’s not going to happen. So, rather than spend so much time worrying about what may be out there but we’ll never really know, why not concentrate on what’s tangible and that’s the Lilliputian dimension of our local spacetime.