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Time travel is 'mathematically possible'


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Technically there is nothing in physics that prevents the reversal of flow of energy, it is possible that all reactions and actions could go in complete reverse, although time would still be moving forward we could rearrange things the way they were in the past. Physics says that you can unburn a used matchstick, it's just out of the realm of probability with today's tech.

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Time is not a physical thing, we often confuse ourselves when trying to perceive time, as it is time is technically a man made invention, used to tangibly understand the rate of change. There are places in the universe that don't have a rate of change.

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If time travel is possible, then would we would likely find subtle artifacts of time travelers. Where are they? Perhaps we have we not looked closely enough to identify a vestige of time travel. Perhaps time travel is not possible or too dangerous. Or, perhaps we have no future.

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1 hour ago, highdesert50 said:

If time travel is possible, then would we would likely find subtle artifacts of time travelers. Where are they? Perhaps we have we not looked closely enough to identify a vestige of time travel. Perhaps time travel is not possible or too dangerous. Or, perhaps we have no future.

Maybe that's what some people see as ghosts... a flash, a glimpse of someone using timetravel

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4 hours ago, grimsituation6 said:

Technically there is nothing in physi? cs that prevents the reversal of flow of energy, it is possible that all reactions and actions could go in complete reverse, although time would still be moving forward we could rearrange things the way they were in the past. Physics says that you can unburn a used matchstick, it's just out of the realm of probability with today's tech.

what about entropy wouldn't that stop the reversing of process and time

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So you could go back in time, give yourself a spare kidney so you had 3 or any other body part creating duplication? Then go back to your time and the bodypart you gave away will be back because you gave it yourself in the past? I don't believe we will ever timetravel, its probably something limited only to subatomic particles.

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Microdimensional Mastery Scale: the ability of a civilization to manipulate the environment over increasingly smaller dimensions.

Type I-minus is capable of manipulating objects over the scale of themselves.

Type II-minus is capable of manipulating genes.

Type III-minus is capable of manipulating molecules.

Type IV-minus is capable of manipulating atoms.

Type V-minus is capable of manipulating the atomic nucleus.

Type VI-minus is capable of manipulating quarks and leptons.

Type Omega-minus is capable of manipulating the basic structure of space and time.

Perhaps there exists an Omega-minus civilization that is a billion years old who's technology includes time travel. Not out of the realm of possibility. .

 

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Time Travel is pointless because all paths that could exist already exist in alternate realities, so if we go back in time to change something, we are generating an alternate reality where the new choices we make have already been made before we travelled back in time. So the only purpose of time travel is not to travel through 'time' but to alternate realities.

Edited by Ashyne
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6 minutes ago, Ashyne said:

Time Travel is pointless because all paths that could exist already exist in alternate realities, so if we go back in time to change something, we are generating an alternate reality where the new choices we make have already been made before we travelled back in time. So the only purpose of time travel is not to travel through 'time' but to alternate realities.

Well that applies only in one theory of time travel, and is just speculation, not fact as you seem to say.

I don't know that travel into the past is possible, but we travel into the future all the time.

I think travel into the past is impossible, nor into the future at any rate other than that which we normally travel, but I base this on general relativity and I have no intention of explaining that here.

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8 hours ago, Frank Merton said:

I think travel into the past is impossible, nor into the future at any rate other than that which we normally travel, but I base this on general relativity and I have no intention of explaining that here.

Why not?

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On ‎29‎/‎04‎/‎2017 at 10:51 AM, UM-Bot said:

According to Professor Ben Tippett, traveling through time is not outside the realms of possibility.

http://www.unexplained-mysteries.com/news/307080/time-travel-is-mathematically-possible

It is mathematically possible in theoretical physics but impossible in quantum mechanics.

The reason being (in simple terms) is the past reverts back into the multiverse so there is no specific past to travel back too. The past isn't like calculating where the balls on a pool table were a few seconds ago. There are no specifics, just probabilities.

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42 minutes ago, RabidMongoose said:

It is mathematically possible in theoretical physics but impossible in quantum mechanics.

Could you be a bit more specific, for example by showing some of the mathematics? 

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1 hour ago, RabidMongoose said:

It is mathematically possible in theoretical physics but impossible in quantum mechanics.

The reason being (in simple terms) is the past reverts back into the multiverse so there is no specific past to travel back too. The past isn't like calculating where the balls on a pool table were a few seconds ago. There are no specifics, just probabilities.

It is also possible that space and time will eventually be described by quantum mechanics, the hypothetical spacion and the chronon. I suppose this would mean that space and time are not specific dimensions, just probabilities of configurations.

How would space and time interact with each other at the quantum scale? Perhaps it would make no difference to our perception, but perhaps space and time are not linear or a continuum, but probabilities of events, fundamentally unpredictable.

What would this mean as far as timelines and multi-verses? Time travel? In my above post about a Omega-minus civilization, one which can manipulate the quanta of space and time, they could manipulate events to their liking or to teir desires.

Also, if one could locally manipulate space and time (time machine), what effects would that have for other regions of the universe?.

 

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Here is Interesting theory on how time travel will come about it is not word for word verbatim but you will get the jest;

Mankind is rapidly approaching two major events that will change the course of human existence, the advent of AI and the manipulation of the human genome.

With the ability to change/manipulate our DNA humans will make new generations healthier, faster, stronger, ability to live longer  and most importantly more intelligent than ever before.

This man made evolution of mankind where we are creating increasingly intelligent offspring will naturally speed up future technological advancements, including AI. It will be only a matter of time before this AI takes over, our AI overlords will use the DNA altering technology to re-design the human DNA to create beings that can better serve the AI. The new humans will be created/born in labs, likely very small, physically weak, extremely intelligent, ability to store huge and recall huge amounts of data in their head, communicate telepathically,  be immune to diseases, cancers etc... require little nourishment or sleep, can see in the dark etc... 

Their skin pigmentation will be neutral gray, no diversity needed no privileges to complain about, they will be what is commonly referred to as Gray Aliens.

These new human beings will be used to serve the AI perhaps in space at mining operations and AI colonization and more importantly be able to survive the rigors of time travel which will likely be required to harvest unaltered human DNA strains, to bring back extinct animals or plants needed to balance the future Earths depleted ecological system or to start new ecological systems on AI colonized planets, maybe even as gifts to other races of aliens that the Earth AI comes in to contact with. 

We are time traveling we just don't know it is us.

Edited by Socio
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13 hours ago, Derek Willis said:

Why not?

There are books and college courses on the subject and it would take one of these.

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Had a related post

not been placed in the "Modern Mysteries, New Age & Prophecies" section, it would have probably received more replies.  Therein the thread is a useful pdf file and a video embedded solely for the purpose of providing one a comparative concept of Alcubierre's versus Tippett's and Tsang's bubbles of curvature. 

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5 hours ago, Frank Merton said:

There are books and college courses on the subject and it would take one of these.

Surely you can provide a hint? For example, we all know from special relativity that one of the reasons why an object with rest mass can't travel at the speed of light is that the mass would become infinite. Admittedly, for non-specialists such as myself, special relativity is easier to grasp than general relativity. But surely you can back up your statement on time travel with something other than "there are books and college courses".

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Believe what you want to believe.  Within space, the speed of light is the speed of information and going faster violates causality.  Now maybe causality isn't what it is made out to be, but in that case existence would be meaningless, which, of course, may be the reality and we are all deluding ourselves.

I am persuaded, mainly because I've been down this road before, that people who want there to be exceptions to physics are  like those with perpetual motion machines.  It takes too much physics to really explain, but there are lots of web sites out there that think they can, so find one of them.

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5 hours ago, Frank Merton said:

Believe what you want to believe.  Within space, the speed of light is the speed of information and going faster violates causality.  Now maybe causality isn't what it is made out to be, but in that case existence would be meaningless, which, of course, may be the reality and we are all deluding ourselves.

I am persuaded, mainly because I've been down this road before, that people who want there to be exceptions to physics are  like those with perpetual motion machines.  It takes too much physics to really explain, but there are lots of web sites out there that think they can, so find one of them.

You misunderstand what I am saying. I am not saying time travel is possible (I don't know whether it is or it isn't). I was simply asking you to back up your statement that according to general relativity, you think it is not. If you are not able to do so, that is fine by me. However, you again say that "It takes too much physics to really explain". This implies you know the physics, so why not provide some (along with some of the maths)? 

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I think it irrelevant whether or not physics / mathematics should be able to describe the means to time travel; to request such proofs implies that the basic precepts are reducible to logical determination.

My proposition is this:

Time does not exist, therefore the "Arrow of Time" is a fallacy, and as such Time Travel is a conceit founded on unproven and ultimately unprovable concepts.

IMO

 

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This may be of similar interest:

" The Alcubierre drive or Alcubierre warp drive (or Alcubierre metric, referring to metric tensor) is a speculative idea based on a solution of Einstein's field equations in general relativity as proposed by Mexican theoretical physicist Miguel Alcubierre, by which a spacecraft could achieve apparent faster-than-light travel if a configurable energy-density field lower than that of vacuum (that is, negative mass) could be created."

https://en.wikipedia.org/wiki/Alcubierre_drive

 

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My point in asking for the physics and maths to back up theories on time travel is that, for instance, Prof. Ben Tippet - who is making the claim here - will be able to defend what he says through having knowledge of the physics and maths. Other physicists may find fault in his theory, but that is what science is all about. My knowledge of maths is basic: I did do elementary tensor calculus at university but soon realized the subject was way beyond me. There are some members on UM who do understand the maths, but of course they never get the opportunity to look at the "theories" put forward by other members because they never provide any maths.

I think I have made my point because no maths has been presented (other than links to wiki). A long time ago my tutor at university (who admittedly was an arrogant so and so) said he never believed any claims derived from General Relativity unless the person could answer the following question: "Please explain the controversial part-integration Einstein discussed with Hilbert, and without which the field equations aren't valid." Real physicists like Ben Tippet and Kip Thorne - who back up their theories with the maths - will be able to answer that. As for me, I barely understand the question!

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