Are we interacting with parallel worlds every day in our daily travels and just not the wiser? Would we even recognize the difference between our world and what could be a similar but vastly different world at its core?

I'm pretty sure almost everyone would take notice if they were walking down a suburban sidewalk only to turn a corner and find themselves someplace entirely devoid of houses and roads. This is assuming, though, that the change abruptly transpires; it could instead be a smooth transition and resemble that neighborhood perfectly, down to the tiniest of details.

Physicist Hugh Everette is technically the father of the Many-Worlds Interpretation; in more recent times, modern-day physicists have expanded upon the idea. For example, Professor Howard Wiseman of Griffith University has suggested that all these worlds are equally real and exist through time while possessing precisely defined properties.

There was a time when such concepts were strictly elements and plots within the confines of science fiction stories. These days, talk of portals and wormholes is very mainstream, and active experiments to stimulate such phenomena, especially here in the United States, are ongoing.

There are things occurring every single day around us that defy our understanding. Sure, if we have a long enough timeline, we may discover exactly what they are and how they exist. The takeaway is that one would never find out if they did not attempt to test it, and this is what science is all about: discovery.