Time Travel will never be possible?

Question

How do i know this because if any time before the world ends some one would have already came. Since no one has came from the future then isnt that proof that there will never be time travel?

Answer 1

-Man will never fly

-Man will never go to the moon

-Computers will never exceed 500mhz

-Aircraft will never break the sound barrier

-500 tv channels will never be available in the home

Just a few things that people have considered impossible...Why is time travel so far out there?

Answer 2

the logic behind that is nice, but thats not the real reason that its impossible. To travel back in time, it is required that a human surpass the speed of light. there-in lies the challenge. It might one day be possible to send particles/neutrons back in time, but not living things. If you find a way for a human to accelerate past 200,000 miles per second (without becoming speghettified by the fabric of the time-space continuum), please alert the nearest astro/nuclear physicist.

Answer 3

this really smart, genuis, kid at my old school, i just graduated, said that time travel is possible. only one way tho and idk which way it was. i think it may happen. but no time soon. maybe the future is very promising.

Answer 4

Time Travel is already possible and we are doing it as we live our lives.  It would also be possible for one to accelerate his travel into the future based on the relationship between time and gravity.  The stronger the gravitational force the slower time passes; so one only needs to find an extremely powerful gravitational field to survive into the future, perhaps a space ship hovering near the Event Horizon of a Black Hole would serve this purpose?

The big problem arises when one tries to travel backwards into the past.  In order to do this, we must assume that the Past still exists somewhere; and if the Past does indeed exist somewhere, then we are all in essence immortal, because we'd always still be alive in the Past after we die.

I do not believe this is the case though.  I believe that the Past ceases to exist, just like we and all things eventually cease to exist!  If there is nothing back there, and even time itself is gone, then there is no Past to travel back into to see.

Before anyone can even think about the possibility of Time Travel, they must first prove that there is something back in Time to travel to....

Answer 5

That kinda goes along with...Christianity. Uhhh, why would God wait out his plan...if he already knows exactly what's going to happen...then it's stupid to just sit and wait for everything to rot. And really wack to "give" your only son to die for this....."cause" (I don't know what else to call it.) If souls are eternal...just take the good ones and send the S****y ones out.

Answer 6

perhaps time travel only works into the future? or maybe they come into the past except the past or them is still the future like maybe they come in 2200

Answer 7

Time travel runs into numerous physical and philosophical problems. Obviously the grandfather paradox is one of them, though the Many-Worlds interpretation of time travel may solve these paradoxes and the very common one that you proposed.

However, frankly it is unknown as to whether or not time travel is possible or not. "Time travel" into the future is easily possible by traveling at high relativistic speeds for a period of time and then stopping. By special relativity, the amount of time passed is less for you than for those you left behind. Time travel into the past is however typically conjectured to be impossible on all but those scales approaching the Planck length (the Hawking chronology protection conjecture).

Significantly warping spacetime in forms similar to wormholes as originally proposed by Morris and Thorne in the 1980's allows for time travel, but it also requires exotic matter (matter that reacts to gravity opposite to normal matter) to allow for the construction of such an entity, which is theoretical. Otherwise one would have to travel faster than the speed of light to go back in time, which is forbidden by a postulate of Einstein's special relativity.