Nostalgia drove me to dig up one of my favorite movie franchises, Back to the Future. The Robert Zemeckis directed films from the late 1980’s starring the gifted Michael J. Fox and Christopher Lloyd about their pairs’ time travelling exploits. Going back and forth from present to past to future to distant past, creating messes and attempting to fix them. Despite being an old set of movies, the concept is timeless and makes me wonder. Will man be able to someday toss the laws of physics out the DeLorean window and leap forward into the future or hold time and go backwards?
Stephen Hawking wrote that the fact no one has come from the future to visit this or a previous space in time points to the non-existence of time travel. Unless of course, these time tourist carefully conceal their presence so as not to cause a ripple in the space-time continuum. They would have to make sure they do not do a single thing while in the past because even the simple act of leaving a pen where it shouldn’t be, buying a drink in a shop, bumping into a person on the street alters the path of all the objects involved, which in turn affects objects around them…..and the dominos fall, CASUALTY. Maybe even changing the fact that time travel came to being.
Moving forward in time is the most theoretically possible but otherwise improbable due to lack of technology and is mostly to be supported because it is less like to violate causality. You tell a guy in the future that you’re from the past, you’ll have a laugh about it and you can proceed with things. It does change the course of time but that time is yet to be written so to speak. If you asked people which direction in time they would like to travel, most would say backwards. There’s always that one thing you wish you could change, that person you could see one more time, rarely forward. If only one directional travel was possible, back in time would be the answer. Who would want to go and get stuck in the future where things are strange?
Only time will tell if someone does manage to pull it off. As for now,wherever now is, science fiction will be the closest to time travel we'll get.
PS. Teleportation is not even being tried.
