Just by their traveling, that person has already changed the fabric of time. This means their present no longer exists for them. In effect; they have traveled into a parallel universe and the original past they went to change is no longer there, either. So how can they change what they went to change? This makes for an interesting dilemma for the protagonist who has traveled into the past to save, or to kill, someone in order to change their original present.
If their goal was to save that someone, in hopes by taking that past person back to their present with them before they died, how would they do that? I’ll delve into that in a bit. For now, let’s consider if the central character went into the past to kill someone. The answer to this brings back into play the idea of there being parallel and multi-universes that exist among us, which I mentioned in brief above, and what is known as the Grandfather Paradox. Theoretically, a person could not return to his past and kill his grandfather because she/he would be killing the grandfather in the parallel universe they have traveled to, not the grandfather in their original universe.
But I don’t want send someone back in order to kill someone else. I write romance; so of course, I want to unite two potential lovers born in separate universes, if you will. Which brings us back to my original question; how will they do that? Aside from the one in the past coming forward and all the theories involving that, which is not what this blog is about, our protagonist from the future needs to be creative about getting them both back to the original future. But then again, they could be saved by the “Observer Reality” But that’s another blog.
I’m going to stop there because a return to the present is what my current work-in-progress is all about. You will have to read the book to see what happens.
Having only had a passing acquaintance with Physics during my university years, and by no means being an expert on the subject, I hope I’ve managed to relay everything I had to say here with coherence.
I believe that the human ability to time travel will one day exist. Maybe we already do have visitors here from our future. (Besides Arnold Schwarzenegger.) LOL! What do you think? Will time travel into these parallel universes ever be possible?
Romance through the mists of time and Love through the dimensions of reality