In short, the answer is no. Whether it be a massive amount of energy required, or infinite mass (which scientists don't believe exists in nature), enough acceleration, or whatever other theory that might hold, time travel, though it may be theoretical (meaning under some pretty impossible conditions), for all practical intents and purposes, cannot be done.
As some have already stated, if it were possible, then someone would have managed it by now. Then the question would be, how would we know, since time is suppose to realign with whatever events may have been caused by the time traveler's actions, or they're mere existence in the past.
So, even if it did happen, since time is relative, unless we were the time traveler, we wouldn't know someone had done it.
There is a prevalent theory currently that nature itself would not allow traveling to the past for the very reason already described—too much of an opportunity for things to be altered. Which means, the future is still available, but then that would basically mean the future is set, or a version is set, unless we were capable of changing things in our present (which would then be the past from the future standpoint until we return to it).
If the future is set, then what does that do for free will? Fate would step in, and it truly wouldn't matter what choices we make. All would happen the way it was cosmically scripted to take place, and we would all be bumbling around more or less without purpose.
Personally, I believe time is nature's recorder of historical and current events. If we were able to step outside of space and time, or tap into this fourth dimension (as time is commonly referred to), I think we'd be able to see things as they actually happened in the past, and watch things in the present from various angles and distances, in real time. We'd do so, however, without affecting any of it.
The future, though, to me, would not be set, but it would be possible to predict, if we had a clear view of what was happening with the past and present combined. We could see where things were going, and try to steer them in one direction or another toward an outcome we deemed more appealing.
Since time is relative to the observer, we would only hold sway over our own actions, and no one else's. Most likely, since events are generally a series of actions and reactions, while what we did might affect us and maybe some around us, the course corrections we might make would have to be farther reaching for, say, the entirety of society to change direction. Which would mean our position could improve, but not necessarily that of others. Or it could worsen, because our circumstances changed.
In my mind, we're better off. There are some of life's decisions we'd all love to take back, do differently, or make right. But those events always help shape the individual we are, as well as those around us. Changing things would not make things necessarily better.
The good thing, most of those regrets we might have can be remedied if we choose to. It might be difficult, it might take more time than we like or want to give it, but it's still possible to do. More possible than trying to fix it through time travel, anyway.
View this answer on Musing.io
View this answer on Musing.io
View this answer on Musing.io
View this answer on Musing.io
View this answer on Musing.io
In short, the answer is no. Whether it be a massive amount of energy required, or infinite mass (which scientists don't believe exists in nature), enough acceleration, or whatever other theory that might hold, time travel, though it may be theoretical (meaning under some pretty impossible conditions), for all practical intents and purposes, cannot be done.
As some have already stated, if it were possible, then someone would have managed it by now. Then the question would be, how would we know, since time is suppose to realign with whatever events may have been caused by the time traveler's actions, or they're mere existence in the past.
So, even if it did happen, since time is relative, unless we were the time traveler, we wouldn't know someone had done it.
There is a prevalent theory currently that nature itself would not allow traveling to the past for the very reason already described—too much of an opportunity for things to be altered. Which means, the future is still available, but then that would basically mean the future is set, or a version is set, unless we were capable of changing things in our present (which would then be the past from the future standpoint until we return to it).
If the future is set, then what does that do for free will? Fate would step in, and it truly wouldn't matter what choices we make. All would happen the way it was cosmically scripted to take place, and we would all be bumbling around more or less without purpose.
Personally, I believe time is nature's recorder of historical and current events. If we were able to step outside of space and time, or tap into this fourth dimension (as time is commonly referred to), I think we'd be able to see things as they actually happened in the past, and watch things in the present from various angles and distances, in real time. We'd do so, however, without affecting any of it.
The future, though, to me, would not be set, but it would be possible to predict, if we had a clear view of what was happening with the past and present combined. We could see where things were going, and try to steer them in one direction or another toward an outcome we deemed more appealing.
Since time is relative to the observer, we would only hold sway over our own actions, and no one else's. Most likely, since events are generally a series of actions and reactions, while what we did might affect us and maybe some around us, the course corrections we might make would have to be farther reaching for, say, the entirety of society to change direction. Which would mean our position could improve, but not necessarily that of others. Or it could worsen, because our circumstances changed.
In my mind, we're better off. There are some of life's decisions we'd all love to take back, do differently, or make right. But those events always help shape the individual we are, as well as those around us. Changing things would not make things necessarily better.
The good thing, most of those regrets we might have can be remedied if we choose to. It might be difficult, it might take more time than we like or want to give it, but it's still possible to do. More possible than trying to fix it through time travel, anyway.
View this answer on Musing.io