is time travel possible?

Question

okay i know this is the stupidest question ever. but some people i know tend to beleive that it does exist. they are very serious on the subject and deeply beleive that it is possible to travel to anytime in the history or future.

i have tried explaining to them that it is not but they still are too hard headed to let go of their childish beleifs. so i am asking you smart people to intelligently explain to this said person why time travel is not possible. this person beleives deeply that you can go back in time and converse with dead people or go to things that no longer exist i.e buildings. and go to the future and see things yet to be created. i am just asking for a little help.

you if you could provide me with facts and statements that could explain and make even the most hard headed people realize it is not possible to travel in time.

and if you are a person who does beleive in time travel then please feel free to share with me your ideas on time travel.

there is one problem with the idea of time travel. something that we will never be able to change that would be required to be changed to travel to the future or the past.....i call it the present. what exactly is the present.... well its the present time....peoples thoughts. position of the earth in orbit. forces science as we know it. people who are cutting there hair. you see to go back in time you would have to reverse all these things and much more. reverse deaths and reverse forces and rewind peoples minds. and you cant rewind a persons mind or reverse a force.....why because its impossible.....why is it impossible.....because to do that you would have to travel in time which is impossible. why doesn't somebody explain how time travel works exactly. im begging you to explain how it works. you see no matter what you do you cant reverse the world time or anytime and you cant travel foward. to travel foward you would have to speed up clocks and life processes

Answer 1

Science fiction abounds with scenarios of tme travel, and that is exactly what it seems to be, fiction. There is NO proof either way, that it is possible or that it is not possible, I think it not likely.My reasoning is as follows: consider a pencil you hold in your hand and let fall to the table. If time travel were possible, then this singular event, gravity taking my pencil from my hand to the table, would reverse, and the pencil would go from the table back up to my hand. Is this a likely result? I think not. Time is a simple construct of man, the way we humans perceive the difference from one moment to the next. I can not get around the concept of time passing. We sense this, but I ask, does the family pet, the cat or dog sense time as we do? Evidence has shown that a dog or cat does not see the passing of time as we do, a clock with a moving second hand. The animals may sense a passage of time, that something hapened a while back, but how far remains a mystery, and there is no evidence they think of a future. We, humans, are aware of our own mortality (which some argue is what it is that MAKES us human) , and it is not clear that any other animals are aware they are going to die one day. So, can we, humans, travel in time? Yes, into the fututre, think something like hibernation, but to reverse the actions taken over time, I think not. How can that pencil dropped suddenly leap up to the hand? Think a dead decaying body in the ground, can the decay process be reversed so the person was again alive as before in the recent past.

No, I do not think tiime travel into the past is possiblr, but there is NO evidence either way, so maybe time travel into the past may very well BE possible.

Answer 2

Time travel may be possible according to Einstein's theory of relativity. Well, he did not exactly start the study about it, some other guy. Time travel may be possible if the object moving is faster than the speed of light. We can only move to the future, but not back in time. And even if we go into the future, we cannot make it back. I remember a story I heard when I was slightly younger, that a group of scientists were transported to the future, but were only able to be shadows there forever. Heheh, just a legend.

Answer 3

Time like all things has a kind of resonant frequency.Each second has its own each being has there own each element has its own.When this part of physics is unlocked not only time travel will be possible but many other things as well.We will be able to extract elements from sea water at the molecular scale by adjusting the frequency as you would a radio.This is also the key to interstellar travel.Space will no longer have to be traversed, you simply adjust the field and molecules of the vehicle to that of a known destination and you phase to that point.

It is a Principal that works kind (nowhere close but as a demonstration)like displacement.Oil in water can mix but will separate.When matching Poles of magnets are forced together the one that is not firmly held in place will flip to align in the same direction as the other.This is a very base description on phased travel.As each place has its own "frequency" when you adopt the "frequency " of another time/place (they are interchangeable and the same) you are repelled or flipped (like the unsecured magnet) to that place/time.You do not travel distance but "frequency".Our present/place holds what is aligned and pushes to the proper place/time that that is not aligned.

Answer 4

YES in one direction: the future. To do so, you need a very fast spaceship which can travel to a substantial fraction of the speed of light. You will experience time contraction along the following formula t' = root (1 -v^2/c^2)*t where t' is the time you experience t is the time experienced by a stationary observer (e.g earth) v is your speed c the speed of light. For example if you were to travel at 10% of the speed of light, you would experience a time contraction of 99.498% Not very impressive. But at 50%, time contraction would be 86.60% at 90%, it would be 43.58% at 99%, it would be 14.10% at 99.9%, it would be 4.47% So if you could get a spaceship to reach 99.9% of the speed of light, and maintain this speed for 4.47 years, on your return to earth 100 years would have gone by. Fly for 44.7 years, and come back to earth 1000 years later. So in PRINCIPLE you CAN travel FORWARD in time. Practically there are some snags. With increasing speed , just like time contracts, your mass augments in the same proportion (e.g. if time runs 10x slower, your mass is 10x higher. So to experience the same force on your seat, you would need to scale down your acceleration since your mass increased (remember F=ma). Also it would become increasingly difficult to move at those speeds and probably your body would suffer serious trauma (for example each heartbeat would require so much more energy).

Answer 5

I read some of these answers and sigh with frustration, so here is the PHYSICS reason why time-travel isn't possible:

In order for time travel to be possible we would have to have macroscopic control in at least 5 dimentions. String theory does suggest the existance of superdimentional timespace but these dimentions exist to support particles that can not be interacted with on a macroscopic scale. We only have macroscopic control of 4 dimentions.

Yes, we can 'make' particles (like tachions) travel faster than light (and consequently travel backwards in time) and yes we can observe positrons that can be considered to be electrons travelling backwards in time. That isn't the issue. Yes, relativity can be violated but only on a quantascopic scale. The principal of equivelance means it is impossible to see quantum entanglement (for example) on a macroscopic scale and particles travelling in a backwards time frame of reference are of no use to us.

Please, don't argue back saying 'anything is possible' or 'we can't do it yet but maybe in the future' or any other fancifal rubbish.

Tell your friend the following:

"The principal of equivelence prohibits the up-scaling of the super-dimentional quantum effects that violate relativity and, thus, no macroscopic 'time travel' is possible"

And the uncertaintly principal means information can not be transmitted backwards in time (or forwards, for that matter) by quantum entanglement. It just isn't possible.

And it never will be possible.

So stop dreaming.

Answer 6

I have always dreamed of time travel. It would be so cool!

But... it is not possible (right now).

However your body is transported would have to be able to put every molicule of your body back in its exact place. You would not want to arrive with a ribcage growing out of your neck, or a blob of organs, etc




If I could go back, I would go and live from 1975 to 1979 over and over. I had a great job, was young and had lots of energy, paid $290 a month for a city skyline view brownstone apartment directly across from the Bunker Hill Monument, with a view of the huge bridge over a river out back.$290!!!! a month!

I had a brand new AMC Pacer for less than $3000.
That car was so ahead of it's time.
The music was fun.
There was no Herpes or AIDS or a number of other viral diseases. The did not exist.

I'd also like to be 26 forever too.

Answer 7

As per our present understanding and as per Einstein's theory time travel is possible only to the future. you can't travel backward to the past. So you can only go to a point in the future but you cannot return back. But with advances in science, some people feel they can also travel to the past and the distance past. I am skeptical whether such time travel is possible. As of today, whatever time travel is projected is only in science fiction movies and novels. However, the subject of time travel is very fascinating and romantic. There are a lot of time travel enthusasts.

Answer 8

Well, the strongest evidence against the possibility of time travel, either now or in the future is that we don't find people from the future visiting us all the time. If time travel is invented in the future, then one would expect that at least someone would have come back to the present to tell us about it, and would have brought the technology with them to share with us so that we could take advantage of it.

Answer 9

Time travel would never be possilbe for people because we cannot comprehend the vastness of time. We do not know when time began and we cannot tell when time will end. It is an infinite demension and trying to understand its make up is a loop. Time is something we are incapable of truly understanding and therefor incapable of manipulating.

Answer 10

first of all the possability and plausability of time travel do exsist. a few hundred years ago it was absolutly impossable to talk to someone on the other side of the world instantly. yet here i am answering your question in real time. it all has alot to do with string, and worm hole theory's. basicly what happens with time in relation to the speed of light. there are alot of "what if's". but one of the big possability's of making it a reality would be to unlock the worm hole, if it exsists, and if so, to stableize it. that would give us a glimps to the past, and the future. you just have to think big. ANYTHING IS POSSABLE!