is time travel impossible or just improble?

Question

h.g wells time machine the time tunnel and dr who and star trek

Answer 1

Wow.

A few people here know what they're talking about. A few. Very few.

Most of these responses are absolutely hilarious. Most of them are from people trying to sound smart, in which case they do NOT. Other cases are from kids with big imaginations, with "Anything is possible!"

Einstein was brilliant, no question. But all great scientists are capable of mistakes, and Einstein was no exception.

His theory on time travel was based on the speed of light and the "paradox" in which light travels at a fixed rate of speed. This is true; light moves at 186,000 mps no matter what conditions are in place.

His theory's flaw is accounted to the fact that light has NO mass. Light, in it's fixed movement, cannot be compared to any living organism (which is made up of mass) or any other object. Any object made up of mass (for example, a human being, or any kind of lightspeed-capable rocket ship) does NOT have a fixed speed; therefore the velocity equation paradox that Einstein based his theory on does not apply to them.

This is all I want to say tonight. Anyone who understands his theories will understand what I've said here, so think about my statements. Let me know what you think (again, only those of you who understand what Einstein's theories were all about), as I'm no expert on relativity. Like everyone else posting on a Yahoo answers forum about Albert Einstein and his theories on time travel, I'm just a fan. Don't act like any of us are any more.
Everyone else: Please don't worry about it.

Although I am skeptical by nature, like any smart person, it is NOT my goal to bash the idea of time travel. After I spotted the flaw in Einstein's theory I presented it to many professionals in the field (or the few that I know, anyway) and have so far received very positive feedback. I searched online as well and have discovered that others seem to have come up with the same idea, or similar. Let me know what you think about the whole deal.

Being proven wrong only makes you smarter.

Answer 2

The past, present and future do exist together, so I guess it's possible we can consciously make the journey either way, one day.

All my life I've had contact with the dead, without even trying. It wont let me go. Also, I have many premonitions, which all come true, some are very scary, knowledge of impending deaths are very hard to live with. Some are really nice premonitions.

Once, when I thought a ghost appeared, I spent months trying to guess who and why and what it wanted, only to discover, it was actually someone I was yet to meet.

Don't ask me how it happens, or why, or what makes these things happen, I don't know. Despite being recorded by the CofE in 1973 as a Medium, I really don't have answers.

None of us does, and anyone who says they have the answers, is deceiving themselves. Even when I tried to stop it, I couldn't.

It began when I woke from months in coma, after a serious road accident, aged eight. I was also made accutely aware, inside the coma, that God and heaven do exist. That we do not die, ever. That we are never, any of us, alone!

Ever since, I've known that time has no meaning, as we perceive it to be.

Past, present and future, are all the same.

Answer 3

Time travel will forever remain impossible - except in dreams. If time travel was waiting to be discovered, then at some point in the timeline, the process would be developed, refined, perfected and eventually - available to anyone in the same way owning a private car is now. If that's considered logical reasoning, then is not also reasonable to assume that at some point, someone from a future where time travel is in existence will visit the first two thousand years of our history and make a mistake, and be found out.

Therefore, it'll never happen - although its a shame - think of all those crimes that could be pre-empted, loved ones who have passed on who we could see again, last week's lottery numbers.....

Answer 4

Consider what time travel means. It means that a certain quantity of energy (in the form of matter), for instance, a human being, disappears from the universe at a certain stage in its evolution and reappears at an earlier or a later stage. Let us call that earlier stage "point x", the stage at which it disappears "point y" and that later stage "point z". If the energy would disappear at point y and appear at point x, that would mean it would exist twice there. Between point x and point y, then, there would be more energy than before point x and after point y.

Now of course it cannot be so that this energy which is sent back would "change" the past: for it is part of the past.

If, on the other hand, the energy would be sent into the *future*, from point y to point z, there would be an slight "lack" of energy between those two points (less energy than before), which would be restored at point z.

If time is curved, as Einstein though it was, the energy could travel in a straight line from point y to point x or z. But what is there besides the curve of time, through which it could travel? And a more basic problem: how does one at all make energy disappear? Not to mention "aiming" it at a certain point in the past or future...

Answer 5

We don't have the technology yet to do time travel - so to say impossible - is a reasonable answer.

However, there is much expectation that we will have the technology someday - so then, to say impossible, is not a reasonable answer.

With all that we know today - time travel is still just a fantasy (although you can find people who believe it has already happened).

In the majority of science fiction scenarios - time travel required moving at faster than the speed of light. The answer of any physicist would be that this is impossible.

Answer 6

I believe time and existence plays out frame by frame a bit like a film reel everything is preordained and therefore if time travel were possible then I think someone would of done it by now as in come from the future. Somewhere on the planet no matter how hard they try to cover their tracks they would of left some evidence of this fact.

Answer 7

You forgot that great movie "Somewhere in Time." Well, if time travel was possible and someone went back in time and changed something, how the heck would we know about it? I've tried to go back and stop the JFK assassination, but so far haven't been able to. At this point it is both impossible outside of extremely minute scientific experiments where they measure like 0.000003 seconds differential. That ain't gonna get me where I want to be.

Answer 8

traveling forward through time is possible, because as objects travel faster things around will travel in time compered to the object travelling, if that make sense. But it's impossible to travel backward through time other wise, we would of met time travellers from the future already. Unless there are somethings as parallel universes, which is a totally different subject!

Answer 9

If you have every solved a quadratic equation where one of the variables was time, you might have gotten a negative value for time which you ignore and accept instead the positive time value. So theroretically and mathematically negative time does exist. Whether it exist in reality as time travel (forward or backward) is another matter. Remember, many things were discovered mathematically before they were discovered physically. Don't give up hope.

Answer 10

It's theoretically possible but I read that we would need all the combined energy in the universe to make it happen. But that is based on what we know at this point. The secret may lie in the future studies of the subject.