time travel?

[johnhacker]

who thinks 1 day we're going to invent a time traveling machine?

 

[WombatWoman]

Time travel into the past, maybe. Time travel into the future, I think not.

Time travel has always been one of my favourite subjects in the SF field. Along with the related phenomenon of parallel universes, this is an area of speculation that really stirs up debate on topics beyond physics (i.e. ethics, cause-and-effect, personal identity, et cetera.)

There's some great reading on the subject of time travel here.

 

[CrazyHelloDeli]

If you listen to the Art Bell radio show, we already time traveling. People from the future coming to 2001, people from 2001 going to the past. Quite entertaining when he has the Time Traveler line open

 

[Elledan]

Time travel like shown in Sci-Fi is not realistic. It's assumed that when traveling 'through time' you'll almost certainly end up in a different time-line, without much hope of ever to return to the timeline and period you came from. Pretty risky undertaking thus.

 

[XMan]

If you listen to the Art Bell radio show, we already time traveling. People from the future coming to 2001, people from 2001 going to the past. Quite entertaining when he has the Time Traveler line open

That's a great program to listen to in the middle of the night when you're driving cross country. He makes Kansas whiz by every time I go home.

 

[johnhacker]

the art bell show? what frequncy? and time?

 

[nortexoid]

time travel?

i think not...time is illusory.

mctaggart.

moreover, even granted that space-time is "real" (at least the temporal dimension), it would be physically impossible (i.e. travelling faster than the speed of light = infinite energy/mass)

 

[Chaotic42]

What I want to know is what happens when I travel forward in time 6 months and the earth is
on the other side of the sun

I really don't see time travel the way it is in sci-fi happening. Aside from the 99.99999%
of the speed of light thing.

 

[CuriousAndy]

Time traveling is impossible without a doubt.

If it was possible, we would've already had someone come from the future and say "Hi, I'm from year 4059 A.D. and we invented time machine.. or 3 trillion A.D."

This simple concept already disproves the possibility.. Time is a flow of.. uhh.. time.. (lack of vocabulary words) you cannot 'travel' it

~mOo

 

[MrBond]

I thought I read somewhere that time travel to spots before time machine itself was invented would be impossible...

Besides, as someone already stated, there's that whole theory of relativity to deal with

 

[Pretender]

Anything is impossible until you do it. Flying like a bird was known to be, without a doubt, impossible 150 years ago.

 

[CrackRabbit]

I have to disagree with you WW, i belive its the other way around, and it all has to do with the speed of light. Its a known fact that the closer we get to LS the slower time goes around us. my therory is that if you reach the theoretical speed time will stop allowing you to travel into the future without aging yourself hence, time travel. of course to do this you need huge amounts of space or a centrifical device that could accelerate itself to lightspeed and then slow down without killing the user.

ok you can flame now,
this is all based in my head and almost none on scientific fact.

just my 2 c

CrackRAbbit

 

[Barefoot]

While I am personally not going to hold my breath about the possibility of actual time travel, I must disagree with nortexoid about his bases. For one, much of the theory about light speed also has to do with theories regarding black holes and other space-time-bending phenomena. Despite what Stephen Hawking has 'discovered', even his theories are not complete and conclusive, and as history will show, many theories about light and its properties have been found to be in error, and I anticipate that the theory of light speed being unachievable by matter retaining mass will also be shown as inaccurate. Many like to think that there are no particles that move faster than light (which, in case some forget, is also made up of particles, while still being made up of waves - read yer physics books again ). This assumption may well be false. Why haven't we found proof that it is false? Well, how are you ever gonna 'sense' it? Something many have proposed is that the 'sixth sense' experienced by humans is related to particles faster than light or existing in an otherwise ethereal separate space from what we are accustomed to.

Basically, my point is that ruling out things light lightspeed travel and time travel cannot be disproven because the theories that the disputes are based on cannot all be proven. So have an open mind, for it's better to be pleasantly surprised than convincingly humiliated

 

[iamthesystem]

*sigh*

another being who disbelieves faster-than-light travel...


*shakes head*

edit: referring to nortexoid's post

 

[db]

...just got back from next week--what was the question?

 

[piku]

Never.

Time is just a measure, just like feet and ounces. You cannot simply go back and forth through it.

If we were to go back or foward in time then we would also have to figure out a way to completley change everything in the world (no, universe) at the mollecular level back to how it was 5, 10, 5000 years ago, along with create/destory things as need be.

Its not happening.

 

[MrBond]

<< *sigh*

another being who disbelieves faster-than-light travel...


*shakes head*

edit: referring to nortexoid's post >>



What he said makes sense. As you approach the speed of light, your mass increases. To pass the speed of light, you need to accelerate even further. It takes a lot of fuel to accelerate infinate mass.

Or are you refering to wormhole possibilities?

 

[WombatWoman]

<< I have to disagree with you WW, i belive its the other way around, and it all has to do with the speed of light. Its a known fact that the closer we get to LS the slower time goes around us. my therory is that if you reach the theoretical speed time will stop allowing you to travel into the future without aging yourself hence, time travel. of course to do this you need huge amounts of space or a centrifical device that could accelerate itself to lightspeed and then slow down without killing the user.

ok you can flame now... >>


CrackRabbit, no way would I flame you for making an interesting, courteous post that disagrees with me. Now, if you had started your post by saying &quot;I have to disagree with you WW, on account of you're an ignorant psycho slut with bad breath,&quot; then we might have a problem.

 

[Barefoot]

Piku,

Not so. If time is a measure such as feet and ounces, then it is relative to something. Both feet and ounces measurements can be manipulated in relation to the object they are measuring (compression and gravity being the tools), so to try and claim that by classifying time as a measurement that it cannot be manipulated is again a fallacy

 

[Moonbeam]

In order to time travel you have to be a stage 4 civilization that can manipulate energies on a level beyond individual stars. The Q are an example of a stage 4 civ. At that level you nave god powers. Michio Kaku, of superstring fame says it's possible given the above energies.

He's one of Art Bells and my favorite guests.

 

[Moonbeam]

Here's a link.

 

[raven82]

looks like someone has been watching to much Back To the Future. its impossible.

 

[db]

I can accept that the past can be observed, but not changed.





----------------------

Time is an illusion