Will time travel ever be possible?

Question

Is it possible even though we don't have the technology now?

Answer 1

"Some theories, most notably special and general relativity, suggest that suitable geometries of spacetime, or specific types of motion in space, may allow time travel into the past and future if these geometries or motions are possible.[3] Concepts that aid such understanding include the closed timelike curve.

Although the possibility of traveling to the future by moving at relativistic velocities is taken for granted by physicists, many in the scientific community believe that backwards time travel is highly unlikely. Any theory which would allow time travel would require that issues of causality be resolved. What if one were to go back in time and kill one's own grandfather (see grandfather paradox)? Additionally, Stephen Hawking once suggested that the absence of tourists from the future constitutes an argument against the existence of time travel—a variant of the Fermi paradox, with time travelers instead of alien visitors (but Hawking noted elsewhere that time travel may only be possible in a region of spacetime that is warped in the right way, and that if we can't create such a region until the future, then time travelers would not be able to travel back before that date, so 'This picture would explain why we haven't been over run by tourists from the future.'[4]) However, the theory of general relativity does suggest scientific grounds for thinking backwards time travel could be possible in certain unusual scenarios, although arguments from semiclassical gravity suggest that when quantum effects are incorporated into general relativity, these loopholes may be closed. These semiclassical arguments led Hawking to formulate the chronology protection conjecture, suggesting that the fundamental laws of nature prevent time travel, but physicists cannot come to a definite judgment on the issue without a theory of quantum gravity to join quantum mechanics and general relativity into a completely unified theory."

"Wormholes are a type of warped spacetime which are also permitted by the Einstein field equations of general relativity, although it would be impossible to travel through a wormhole unless it was what is known as a traversable wormhole." Time dilation can also be possible.

Answer 2

Will time travel ever be possible? Wormholes through the fabric to shortcut to other stars is not allowed due to not having the ability to drill through the fabric large planets and stars lay in. If a galaxy cant break through it how can a ship? Trying to reverse the direction of a planet rotation isn't logical either - the universe acts as a single unit so trying to reverse that unit seems to me impossible. But there still may be a way for time travel. But it doesn't use the methods explained here.

Answer 3

Below is an answer I submitted to the question "Is time travel possible"? In addition to this, Time, Size, and Mass will all seem normal for those in their own reference frame. These entities would seem peculiar, for example, if earthlings could somehow see the people travelingclose to the speed of light. The Earthlings would see the travelers shrink, become more massive, and notice that their clocks were running significantly slower. The foollowing is a a brief descrition of time , the 4th dimension. I hope this helps.

Yes, one aspect of time travel is theoretically possible. That is to say, according to Einstein's Special theory of relativity it is possible to travel into the future. How far in the future in a given time span depends how close to the speed of light you accelerate. Traveling at 80% of the speed of light according to Einstein's formula y=1/ Sqrt 1-v^2/c^2 ,(v=velocity, c= speed of light) the clocks on Earth will advance 1.667 times faster than the one traveling in space. Therefore, after a twenty year journey by the space travelers, (20 yrs time has elapsed by the travelers account) upon their return, there will have passed on earth 33.4 years.
At 98% of the speed of light, 20 years of travel at this speed, upon return, 100.4 years will have passed on earth.
This is the equivalent to traveling into the future, which is a form of time travel. Therefore time travel is theoretically possible. In fact, check out this site as the guy proclaims that we will be able to approach speed of light travel within 100 yrs.
http://www.physorg.com/news10789.html......
Traveling back in time is debatable, as you would have to be able to exceed the speed of light to do that.
Plug in the numbers to this formula. speed of light c= 186,000 miles per second. For velocity, just multiply this number from .01 to .9999. Then just follow mathematical operations.
good luck

Answer 4

Yes ! Its part of today's modern science. Einstein published his work proposing mankind traveling into the Infinite future. Other theories have developed that illustrate traveling faster than light speed. But are inconclusive. The only logical theory and based on relativity that is an accepted theory is "" Quanta Phyiscs "" developed by Rodney Kawecki of Los Angeles California. His work can be viewed at 'specialrelativityquantaphysics. com'. It is the only sound theory on superluminal travel. And is an extension to Einstein's theories whom did not discover the formula but what was discovered by Rod Kawecki in 2005. It is a newly developed theory. Which do not violate relativity or is based on some transformation of reality as the Alcubierre Warp Drive Theory design by Michuel Alcubierre of New Mexico. It is belived that ' The Quanta Physics Theory ' will replenish modern physics.

Answer 5

It is a concept that is so intriguing that SciFi writers have an almost unlimited source of plots and different twists to write about.

Unfortunately, the key acronym in the above statement is "SciFi."

The answer to your question is no, not in the sense of traveling to and fro to different periods in history or into the future and return.

All we have is "now" - the past is gone and the future is where the direction of time is slowly pushing us - and its all new territory.

Answer 6

That's absurd. I'm sorry, but it is. You can't travel forward in time because the future does not exist yet. You can't travel back in time because time is not some sort of parallel universe. It happened. It's over. Now we're here. You don't exist as yourself in the past or the future; you're here in the present.

Answer 7

forward, yes. back, probably not. moving at any speed is technically time travel, since the faster you go the slower times moves for you relative to the outside observer. all you have to do is go faster, or put yourself in a situation where the gravity was high enough so as to cause time dilation and not pull you apart.

Answer 8

I say no because if it was possible we would already see people visiting from the future!!!

Answer 9

It will be possible within 50 years. We will only be able to go into the past. We will not be able to go into the future.

Answer 10

I don't believe it ever will be possible.The Doppler effect or something very much like it would probably apply.