why do Scientists Say You Can't Travel Back in Time, and only talk about 4 dimensions?

Question

and never mention the 5th (Dimensional travel possible) and 6th (Time & Dimensional Travel possible) dimensions where it would be possible.
of course 4 dimensional time travel is impossible. it doesn't have the extra dimension required for quantum and temporal incursions to occur.
are all humans this stupid when it comes to talking about time travel. can't they visualize the time stream and the multiverse.

yes Humans are only 4th dimension but is it all that hard to wrap your head around 2 extra dimensions of time. if you want I can even post my temporal maps.
back to the future even used a 5th dimensional space time map (extremely simplified). and that was a movie.

Responce to:
http://news.yahoo.com/s/livescience/20070309/sc_livescience/youcanttravelbackintimescientistssay

to Resist: I actually think There are a total of 12 dimensions.
always in packets of four.
3 directional + 1 time

to mohamed: actually if you went back in time it would require accessing all three dimensions of time and you have to think temporaly and quantumly.

if you went back in time it would essentially break the time stream.
one act of traveling to the past causes the time stream to break into two main branches with two paradocical branches coming off of the main branches and then there are the tertiary and quatinary feather incursions and the feather-main incursion caused by your return from the past as well there is the paradocical feather incursions were there are three or two of you that exist in that reality. I'll try to post my time map.

http://ic1.deviantart.com/fs15/i/2007/072/d/d/Temporal_Map_1_small_by_DemonicClone.jpg
http://fc01.deviantart.com/fs15/f/2007/072/8/4/Temporal_Map_1_by_DemonicClone.jpg

Answer 1

I recall reading somewhere that Mathematicians have proven that the universe has like 11 dimensions. We humans are only familiar with 3 or 4 - height , width and depth and perhaps time.

I think our scientists are too "short-sighted" and can't see far into the future because their perception and imagination are limited by their finite knowledge and what they can see at this moment.

We know from Relativity Theory that as we approach the speed of light, time slows down.

So theorectically, if we travel in a spaceship that travel close to the speed of light away from earth and return in one hour, time on earth would have passed like 1 million years into the future. Thus we sort of have "travelled into the future".

Now to travel into the past, we have to travel at the speed BEYOND the speed of light, where time would start to reverse.

So far , there is no technology or resources that can build and power a spaceship that can travel close to a fraction of the speed of light !

However , what may be impossible now will be possible in the future. In the past, there were "short-sighted" scientists who thought it was impossible to travel faster than 30 mph or that moon landing was impossible or even that "virgin birth" was ridiculous.

Well, we built flying machines that can fly at 25 times the speed of sound like hyperdrive jets . We proved that man can land on the moon and we sent robots onto the soil of mars. We proved through Dolly the sheep that sperms are not needed to clone an animal.Thus resulting in virgin birth.

We currently only know a tiny fraction of all the sciences and technologies of the universe. As we gain more knowledge and developed more technologies, what that was impossible will be theorectically-possible and what that is theorectically-possible would be technologically-possible and finally economically-viable and be mass-produced.

The argument that no one from the future even come to visit us proves that time travel is impossible - well, i would think that if time travel is possible in future. it's probably a controlled thing like nuke bombs because altering history would have a great impact on the future. Perhaps there are covert time-travelling that caused so many UFO sightings , Aliens landings , Religious manifestations, Ship Disappearances , miraculous events that cannot be explained or proven.


Let me quote this :

"In the long run , NOTHING is impossible."

Answer 2

Scientific Dimensions are a pretty common dilemma although it is usually accepted that while there are 10 or 11 dimensions, all of them but 3 collapsed long ago, so that we could see.

Odd that with a telescope, to go "back" we have to look "out" and when we do we "see" the past, it is in the present. This seems to say there is no such thing as the past. Anyway the past isn't real anymore. Only it's effects are.

Scientific American has printed a couple of articles on the other dimensions including a special report titled "Parallel Universes" that may be related to your Q.
Also there is a book by Palle Yourgrau titled, "A World Without Time" The forgotten Legacy of Godel and Einstien that talks about actual time, however, I could not understand it. Good Luck!

Answer 3

You should remember ALL the times the 'scientists' said something that is NOT TRUE. Like eggs are bad for you! Ha. Now, the egg is said to be the "miracle food."
Who gives a rat's rear what scientist say. They cannot prove their theory or disprove time travel either. They can only speculate and postulate, reject conject, or admit or deny. This is the same arena that would claim there is no God, or that there is no after life.
Why does anyone CARE what these half baked, supercilious group claim?
The real glitch is they cannot prove or disprove their theory!!! Just a theory. Nothing more. In fact, scientists are probably the last stronghold for keeping people in the dark. Heck, I know a scientist who cannot even cook a grill cheese sandwich? And he's how smart?

Answer 4

I think that our concept of time is what limits our ability to understand all things associated with it.

For example, the moment I was born indeed happened over 46 years ago. But that is by our concept and perception of time.

Let's suppose that the moment I took my first breath is never any further "back in time" than say, the moments in which I strike the keys on my keyboard to construct this answer. The idea being that our entire lives, the evolution of humankind, the development of our solar system, and the lifespan of the universe, all happen/happened in one "moment".

As intriguing as time travel is to me, I don't think it is possible to acomplish even if power to drive a "time machine" was available.

Answer 5

Here is a copy of an answer i just wrote here on Yahoo in response to a similar question. I think it works here as well.

I have often been fascinated by the idea of time travel, but i just don't see how it can be done. I mean, there are those that say that time travel would be dangerous because you could go back in time and change certain events. But how is that possible? Everything in the past has ALREADY happened. I do not see a logical explanation as to how this can be changed.
If for example, i have the ability to time travel and i want to go back in time to prevent, say, 9/11 and i do travel back to 2001. What does this mean? This means that on that fateful day in 2001 i was there, somewhere in New York, Boston airport or where ever, trying to convince everyone that this group of guys would be doing something bad. We all know what happened, so does that mean i failed? Maybe, or maybe it means that 9/11 could have been worse and i prevented that, or it could mean that somehow my journey to the past actually caused 9/11 by my interference in events. How can we ever know?
Can i go back and kill myself? What if i go back and accidentaly kill one of my ancestors? The logical outcome of this is that i should not exist, but i do, how can that be?
I like the general idea of time travel presented in the movie "twelve monkeys", it made sense to me.
So we can't change history, so going back in time to actually oserve things, or learn more about history, now that would be nice. I wouldn't mind meeting many of the great thinkers of history. Imagine having a conversation Leonardo DaVinci, or Socrates.
There are so many awful atrocitites in human history that it is unthinkable that if ever the ability to time travel is invented in the future that someone would not have tried to go back and change something.
There are many dilemas about time travel, but i firmly believe that you can't change things that have already happened. The events of the past might be the result of some meddling from travlers from the distant future. How can we ever know?
Wouldn't someone have tried to prevent the black death, or the holocaust or the various world wars, or the mongolian invasions and so forth? The list just goes on and on. Wouldn't some racist have gone back in time and allowed the south to win the civil war, or the nazis in the second world war?
As for the various theories about traveling to the future. Ok, i can grasp them, but what would be the use if i can't come back to the present? It defeats the purpose. Personally i would love to be able to travel say a couple of thousand years into the future, but how can i know what i will meet when i get there? What would be the use of sending someone to the future if we can't make use of the knowledge that person gains once they get there?
And if we are the "past" of people in the future, then can we change any even that is in "our" future?
Does this make any sense to anyone?
If i go to the future (with the ability to come back to our present) and learn that history books in the future talk about a war, or terrorist event, or whatever, that will kill millions of people in say 2020, can i change that? I mean, wouldn't i be changing the "past" of whoever is in the future? Does anyone get the mind boggling, insane logic, or illogic, of all of this?
If i can't change my past, then how can change other people's past?
Ahh, i feel like pulling out my hair, one by one.
The recent theories and ideas about inter-dimensional travel, now those are interesting and do not raise these many dilemas that come with time travel.