Is time travel possible?

Started by Dexx23 pages

not to mention that..should we be able to travel to the future, then theplace where (or when 😉) i arrive would also have this travelling technology, having passed through the time i pass as the current time.

so, when i meet myself in the future, not only it creates the paradox, but he wouldn't even be surprised to see me goddamit! 😛

Is time travel possible?
dont think it is or will be

Originally posted by ragesRemorse
Einstien believe so, and that guy knew everything. Although he did have trouble tying his own shoes whcih is why he wore loafers,so maybe he just got lucky with that whole relativity thing.

Einstein did not believe in time travel with the meaning we have given to it today, as in a big silver box that's shiny and can take you to Stonage

He just proved theoretically (therefore not accurate, just possible) that time can be bent. I've read about this theory of his but it's too long and I can't translate it in english, sorry 😖leep:

Science fiction claims it is possible, but reality does not. I think some people think it may be possible because we would hope it was. Thus, the age old question erupts: If TT was possible, would you go back and kill Hitler to stop WW2? What consequences would that bring to the present world? Socialists have said that if WW2 didn't happen, we would have used the money spent on the WW2 to explore space much sooner and thus be colonizing space right now. However, WW2 taught us a very lesson in looking for warning signs and creating national defense. It's also said, if TT was possible, if you went to visit the dinosaurs, if you stepped on an insect, and returned back to the present, that one killing millions of years ago, could ultimately change the timeline in a dramatic way. The world would be a MUCH different place.

Originally posted by Dexx
not to mention that..should we be able to travel to the future, then theplace where (or when 😉) i arrive would also have this travelling technology, having passed through the time i pass as the current time.

so, when i meet myself in the future, not only it creates the paradox, but he wouldn't even be surprised to see me goddamit! 😛

What's all this about the future 😛
Why not the past?

time travel to the future is possible, but there is not way to return. einstein proved tha the faster you travel, time slows down for you. so if you got in a rocket car that could travel the speed of light, and you traveled in it for about 3 hours, a few months or years could've passed because while time was slowing down for you as you were traveling at the speed of light, time was going normal for everyone else. or was it that time stops if you reach the speed of light? i think that's what it is. the closer you get to the speed of light, the slower time is for you. so if you go near th3 speed of light, that oucl happen

Originally posted by silver_tears
What's all this about the future 😛
Why not the past?

because only in the future, would the guyz also have time travelling technology...hence my future self not being surprised. 😛

it's all ridiculous ofcourse. my first post says what i think about this..

Originally posted by fruits
time travel to the future is possible, but there is not way to return. einstein proved tha the faster you travel, time slows down for you. so if you got in a rocket car that could travel the speed of light, and you traveled in it for about 3 hours, a few months or years could've passed because while time was slowing down for you as you were traveling at the speed of light, time was going normal for everyone else. or was it that time stops if you reach the speed of light? i think that's what it is. the closer you get to the speed of light, the slower time is for you. so if you go near th3 speed of light, that oucl happen

err..no...read my first post.

time does not pass slower for you when closer to light speed. YOUR time is percieved slower by the OTHERS who are not. be assure...a second will last as long for you as it will for the rest.

if you consider travelling at light speed for 10 years and then return to earth, then yes...that is the closest thing percievable as time travell. though it is not.

it is only bending time thanks to it's relativity

time travel is impossible, it's friggin science fiction.

And here… your local scientist to the rescue 😄

By time-travel physicist usually mean travel BACK in time. Travel into the future is possible. You just have to move very fast relative to the speed of light relative to Earth – and voila. Time-dilation will propel you into the future. But you can’t go back.

So why do scientist bother with time-travel (to the past) anyways? Because they do
http://www.math.siu.edu/kocik/tm/tm-all-ch.htm

Because Einsteins General Theory of Relativity (his updated version of Newtons laws for gravity) is funky math and science. Whatever this theory has predicted has been found, from Big Bang to Black Holes. Among the prediction are these gravitational short-cuts called wormholes (Think “Deep Space 9”, “Stargate” or “Contact”).
Now the problem with these wormholes are, that they can apparently short-cut not only in space but also in TIME.
But time-travel (to the past) leads to all kinds of logical disasters. The paradoxes of the kind “What if I kill my grandmother before my mum is born?”

So what do we do?
Do we assume all modern science is wrong, toss it in the bin, and start from scratch, and assume travel to the past IS possible? That is: Worm-holes ok, time-travel is possible, science got it all wrong?
Or: Do we assume that time-travel is possible, but we somehow loose our freemdom? I may try to kill my grand-dad back then, but obviously it doesn’t work (I’m here after all). The Universe “conspires” and my gun doesn’t work, I miss, I stumble etc? Worm-holes ok, time-travel is possible, science is ok, but needs a twist.
Or: Do we go with professor Hawking, who said: The best empirical evidence against time-travel is: Where are the time-travellers from the future? Worm-holes ok, time-travel not ok. Science is fine.
Or: Do we assume that that wormholes are a crack-pot prediction and forget it? Wormholes not ok, time-travel not ok. Otherwise science is fine?

I stick with Hawking 🙂

Originally posted by The Omega
And here… your local scientist to the rescue 😄

By time-travel physicist usually mean travel BACK in time. Travel into the future is possible. You just have to move very fast relative to the speed of light relative to Earth – and voila. Time-dilation will propel you into the future. But you can’t go back.

So why do scientist bother with time-travel (to the past) anyways? Because they do
http://www.math.siu.edu/kocik/tm/tm-all-ch.htm

Because Einsteins General Theory of Relativity (his updated version of Newtons laws for gravity) is funky math and science. Whatever this theory has predicted has been found, from Big Bang to Black Holes. Among the prediction are these gravitational short-cuts called wormholes (Think “Deep Space 9”, “Stargate” or “Contact”).
Now the problem with these wormholes are, that they can apparently short-cut not only in space but also in TIME.
But time-travel (to the past) leads to all kinds of logical disasters. The paradoxes of the kind “What if I kill my grandmother before my mum is born?”

So what do we do?
Do we assume all modern science is wrong, toss it in the bin, and start from scratch, and assume travel to the past IS possible? That is: Worm-holes ok, time-travel is possible, science got it all wrong?
Or: Do we assume that time-travel is possible, but we somehow loose our freemdom? I may try to kill my grand-dad back then, but obviously it doesn’t work (I’m here after all). The Universe “conspires” and my gun doesn’t work, I miss, I stumble etc? Worm-holes ok, time-travel is possible, science is ok, but needs a twist.
Or: Do we go with professor Hawking, who said: The best empirical evidence against time-travel is: Where are the time-travellers from the future? Worm-holes ok, time-travel not ok. Science is fine.
Or: Do we assume that that wormholes are a crack-pot prediction and forget it? Wormholes not ok, time-travel not ok. Otherwise science is fine?

I stick with Hawking 🙂

There is no argument with the expert in the filed so i stand corrected for all that i said wrong 😮

pray The Omega, the physicist pray no argumet!

Lil Bitchiness> You weren’t that wrong 🙂 I honestly don’t know what Einstein thought about time-travel. But worm-holes weren’t “invented” until after the good Albert was dead. He was in the making of their precursors, though. The Einstein-Rosen bridges.

But travelling into the future wouldn’t be dangerous, as you wouldn’t be able to go back and use your knowledge. At LEAST to the best of our knowledge.

I stick with Hawking. If time-travel BACK in time is possible, then it doesn’t matter WHEN our descendants invent the time-machine. It can be in 10, 100, 1 000 or a million years from now. IF it is possible, then one day our descendants will start travelling back in time.
So where are they?
From the point in time in the future when the time-machine is invented, and until the end of the world, people will be able to travel back in time. Eventually time-travelling devices will be as cheap as mobil-phones. So someone might get the idea of visiting 2004.

and to the whole thing where you saved your friend, i believe the time machine would still exist, but when you went back to teh future, it would not be your future, it would be an alternate reality, like in back to the future, because- nevermind, my brain hurts

Fruits> And where would the energy come from to create an entire NEW Universe, just because you travelled around in time?

I think time travel is impossible.
Lets think. If we throw out the last two of Omega's examples and we work with the first onw we still come up with time travel being impossible.
For example:
If scientists invent time travel then in some point in the future of the universe time travel will be erradicated. This is because when time travel is widly used any concept of time will be lost. If we can alter time and travel along it, then it time itself loses its meaning. Then like Omega has said previously (Long time ago in the Evo. thread) Of time becomes ifinite then the impossible becomes possible because there is an infinite amount of time to accomplish it in. Now at one time in the future. It makes no difference when because it can happen at any point in the future and it would have the same outcome. At some point in the future some idiot will get ahold of a time machine and get the bright idea to go back to when time travel was invented and inadvertanly prevent its occurance. This would mean all knowlage of time travel would be erased and history would be changed. By this logic, time travel could have allready been discovered and erradicated without us ever knowing.

One last thing:
Time travel is widly based on the idea that the future is set. This goes against the second example that Omega gave. The example of someone being unable to change the future goes against the idea of free will and embraces fate. So with that being the case. No matter what we do it has allready been taken in account for and will not change. But this means that a god or some superior being must exist to control time and that goes against the beliefs of Atheists.

Therfore the only alternative is that Time travel is impossible.

Time travel to the future is very possible, it happens daily everywhere, in fact in a few seconds you will travel to the end of this sentence. We travel through time as the day goes by, we change the future everyday, and we meet our family members in the future, in fact as soon as my brother comes back from the bathroom, i'll meet my little brother from 10 secs from now, and when my mom wakes up i'll meet my mom from a few hours from now

I don't think time travel will be brought into the public eye or even put to use. You can bet someone is trying but it's far too dangerous. It's probably how the world will end.

Some moron invents time travel, goes back in time, messes up the space/time continuam and we'll all cease to exist.

"Time travel to the future is very possible, it happens daily everywhere"

They mean vast time travel. Like traveling hours, days, weeks, months or years ahead of the time we're in.

It's also flawed coz you'd likely have to specify not so much a date, but where you wanna travel to in the sense of "After so and so happened". In which case you don't know what's gonna happen in the future.

-AC

I think its possible

Omega, heard Hawking's speech on the subject?

Tpt> Yep, I think Hawking is right. However, time-travel is not based on the fact that the future is set.

That is exactly the definition of the future. All those choices that have NOT been made, events that have not yet happened, and may occur in various different ways.
The past is somehow settled. Information on all events that have happened, are all around us – not only on photos, in memory, on tape etc. Light (EM radiation) from those events penetrate the Universe (hence why we can see what happened at Alpha Centauri 4,3 years ago), and this emission of information somehow “locks” the past.

Imagine the following scenario. Some aliens, with a mega-hyper-super tech telescope 15 lightyears away are watching Earth. That means they’re hearing and seeing Earth anno 1989.
The light from the events back then have travelled to them during the past 15 years and reach our aliens now – in our 2004.
Should I go back in time, to 1989, you, the rest of the world, light from 1989 and our Aliens would still be here – in the present. If I were to start changing things, an incredible faster-than-light change would have to occur with the light that had just travelled to the aliens.

Lady Eowyn> That continuos movement of the present into the future is MOVING through time. It’s not how time-travel is defined.

Alpha Centauri> And I bet you no one IS trying to invent time-travel. For the simple reason that we don’t even have the beginnings of the physics required to do so.

Shaber> On the subject of Black holes? Or on wormholes? Or on time-travel in general?