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Old Jan 11, 2017   #1
Bless
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A Question for the Future - Time Travel
So even NASA have written up about this subject, and suggest, in essence, that time travel to both the past and future are possible, by manipulating Einstein's theory of Special Relativity. And can theoretically been done by astronauts who leave the earth's gravitational field and travel at an "appreciable fraction of light-speed". However with no way of returning back to the landmass or place they were at, as to do so they would have to break the speed of light, which is, as far as current science knows, impossible.

Now, the theory of gravity suggests the possible existence of wormholes, and as such a 'gateway' that could alter the speed of time and as such make travel backwards in time possible, without having to travel away from a landmass (aka time travel is hypothetically possible, returning to earth in the 'past'. And so in essence bypassing the problems addressed in the first paragraph

Which brought about a question for me; If as people suggest, in the future we have invented time travel, and we can in fact travel to the past, then why have we not witnessed them/been visited by these time travelers yet?

What is everyone's opinions on this topic, as I am aware it is one of controversy,

Discuss.

Last edited by Bless; Jan 11, 2017 at 03:36 PM..
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Old Jan 11, 2017   #2
Oracle
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Hypothetical possibilities don't mean that it will ever happen.

First, a wormhole has to be proven to actually exist. A theoretical probability does not mean it actually exists, merely that it can exist. Second, space travel still needs to advance to a sufficiently advanced level to reach the wormhole. Third, the same space travel needs to be able to not only reach the wormhole, but then sustain whatever rigors may occur from passing through the wormhole. Fourth, control over the amount of time travel that occurs would likely be limited based on each wormhole, so it's possible the wormhole may only travel meaningless amounts of time forward or back, or travel so far forward or back that it imposes hazards on the craft that attempts to make use of it.

Even assuming everything is perfectly aligned and accurate time travel is possible, it's entirely possible we are wiped out as a species before we reach sufficient advancement for it to matter. Or the exact opposite of we advance so far as a species that time no longer is relevant.


Either way, it's a hypothetical question that really just boils down to two things: we have no evidence to support it ever happening up to this point, and we have no means to test any of the hypotheses which would provide such evidence as of this moment. So it's pointless, in my opinion, to dwell on the hypothetical when the practical parts of the question can still be worked on. The hypothetical only becomes relevant once we actually perform time travel, since now we have a legitimate basis to question the lack of a footprint from future time travel being visible in the present or past.


Which leads to the more theoretical answer explaining a lack of a footprint, which would be going back in time would create a branching dimension of time from the point you travel to, since your very presence there would change the course of events. Meanwhile, in the original dimension of time you originated from, it would remain unchanged since you traveled to a different time stream.

Essentially, the theory assumes time is the fourth dimension, and the fifth dimension composes of all branches of time (or multiple instances of the fourth dimension, so what pop culture would call "parallel dimensions"). By travelling back in your path of the fourth dimension, you would have to create a branch at the arrival time where your appearance changes the events of the dimension from that point forward. As such, travelling back in time would put you further back in the fourth dimension, but on a separate axis in the fifth dimension. Therefore, the original time that you originated from is undisturbed, while another instance of reality where your time travel changes the events of the future is created.

Which is all, again, theory which can't be tested yet, and is mainly supported by too few observations and some very presumptive logical reasoning.
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Old Jan 17, 2017   #3
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Originally Posted by Sense View Post
Which brought about a question for me; If as people suggest, in the future we have invented time travel, and we can in fact travel to the past, then why have we not witnessed them/been visited by these time travelers yet?
.

Well If you look hard enough you can see "evidence" all over the internet via Pictures, Video, or word of mouth. Now the validation to these claims is something that needs to be looked at. I mean giving how most know about time paradox's and how they would fuck a hefty amount of shit up, the inventor(s) of Time Travel would make it priority #1 that the subject traveling back in time remain unseen, unheard, and never remembered. That in itself could explain why there hasn't been any "clearly undeniable proof" that it already exists in the future.
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Old Jan 17, 2017   #4
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If future humans could travel back in time you wouldn't know it as the time they jump back to will be slightly different to ours setting off a new splinter timeline. Think of it as trying to step perfectly back into your footprint on sand or snow.
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Old Jan 17, 2017   #5
Bless
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Originally Posted by Oracle View Post

post


But aren't theoretical possibilities the starting point of any breakthrough or productive research, how can one get anywhere if they don't dwell and give time to such theories, unless one has his own breakthrough

Originally Posted by Fates View Post
Well If you look hard enough you can see "evidence" all over the internet via Pictures, Video, or word of mouth. Now the validation to these claims is something that needs to be looked at. I mean giving how most know about time paradox's and how they would fuck a hefty amount of shit up, the inventor(s) of Time Travel would make it priority #1 that the subject traveling back in time remain unseen, unheard, and never remembered. That in itself could explain why there hasn't been any "clearly undeniable proof" that it already exists in the future.

Not necessarily, how do you know that we haven't already gone off on a tangent of the 'original' timeline, and just not noticed as whoever or whatever it was has never been noticed for the fact they came from another time?

Originally Posted by Condings View Post
If future humans could travel back in time you wouldn't know it as the time they jump back to will be slightly different to ours setting off a new splinter timeline. Think of it as trying to step perfectly back into your footprint on sand or snow.

That seems like an incredibly risky move, to just appear and hope no one questions your 'backstory'
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