Time Travel is Science Fiction

It's just that as an IT guy I have a good training in analysis and logic,
I rarely resort to personal remarks on fora, but this got my goat

Farsight, you do NOT use logic and analysis. You quote selectively from sources that you believe (often incorrectly) supports your own unwavering opinion, you use childish and misleading analogies and you dismiss aspects of scientific research by serious and clever people as "woo" without providing any evidence of your understanding of what this "woo" actually is.

You are a pest and ego-maniacal fraud.

So there
 
Yes, time dilation is real. But the crew travelled through space, not through time. They could achieve the same effect by spending four million years in a stasis box, which is a glorified refrigerator. They aren't time travelling, they are suffering less internal motion, that's all. It's like I said in the OP, you "travel" to the future by not moving at all whilst everything else does.

Silly Billy.....Of course they travelled through time as well as space. Both are unavoidable properties of the Universe.


Landau has already said time dilation is not time travel.


Landau is wrong.



A clock "clocks up" local motion inside the clock. When one clock is going slower than another, the motion is going slower, that's all. When you're time-dilated it's like you're living your life in slow motion. But you aren't time travelling.

That is unmitigated pseudoscience rubbish.
Three points to help you...
[1]A clock has nothing to do with time except to measure its passing.
[2]When one clock appears to be going slower then the other, it is time dilated...nothing to do with motion.
[3]No local Frame sees anything like time dilation within that frame. Time passes as per normal. It [time dilation] is a frame dependent thingy.
 
No, I created this thread in order to challenge woo, and as a lead-in to another thread on the speed of light which is a lead-in to an explanation of how gravity works. I don't report people who disgree with me, I report people who are abusive and offensive and who seek to trash threads and spoil the forum.


From where I sit, it is you who makes the insulting condescending remarks, it is you who continues to grossly misinterpret people, it is you who is dabbling in woo, and finally it appears it is you who has no knowledge of SR/GR and what it entails.


That's not true. I make a case for the subject of discussion, with references, and the idea is that you offer a counter-argument to show where I'm wrong. If you can't, you yield graciously. When I've been banned it's typically because there's some "moderator" who thinks he's the expert and who can't bear to be shown to be wrong by a guy like me. If you'd like to refer to another forum I can show you my posts there. They will be civil, concerning physics. And other posts will probably demonstrate that the moderator gives free rein to abusive trolls who seek to trash the thread.

Another conspiracy theorist! :)

But the level of speculation varies. There's virtually no speculation concerning black holes: we know there's something very small and very massive in the centre of our galaxy. However there is no evidence whatsoever for white holes or wormholes, or for time travel.


The above is another example of your insidious misinterpretations. No one I believe has ever said WH's or wormholes, exist, or that time travel is real. Just that none are forbidden by the laws of GR and physics.


The people who believe in things like time travel despite all the evidence of what clocks do and what time is, are the people behaving creationists.


Anyone who doubts the fact that the laws of physics and GR do not forbid time travel and wormholes, most likely have an agenda.
And anyone that has ever claimed to have a TOE on this forum, should be undoubtedly committed.
 
The most obvious point in this thread is the title is a furphy.
Time travel can never be deemed as Impossible, while it is not forbidden by the laws of physics and GR.
And just as obviously, any sufficiently advanced civilisation could achieve it, even our own.
That maybe 100, 1000, 10,000 years in the future, no one knows.
While the manipulation of spacetime is probably the most common theoretical way we could achieve it, I would like to throw in another completely different manner....

What if we were able to "manipulate"the Higgs Boson and/or field to project a perception of no mass?"
I mean manipulate it to give spacetime the perception that a certain object has no mass.
If we had no mass, or if we could fool "spacetime/Universe" into thinking we had no mass, we may achieve "c" or FTL travel.
Just some speculative conjecture. Any comments?
Including the possibility I'm crazy! :)
 
I live in Poole in the UK. And honestly, whilst Hawking is a media darling, he is not well thought of by physicists. Have a read of this physicsworld article:

More fairy tales designed to get a raise out of people...
Why don't you post some quotes from notable, reputable people regarding Hawking.....Perhaps a quote or two from Sir Roger Penrose, or Kip Thorne, or Brendan Carter, or from a myriad of any recognised physicists.
Perhaps at the same time, we can ask them of their opinion about you.


"This morning there was lots of talk about science on BBC Radio 4′s Today programme – but I think it left many British scientists cringing under their duvets.
Stephen Hawking was on the show explaining why M-theory – an 11-dimensional structure that underlies and unifies various string theories – is our best bet for understanding the origin of the universe. Hawking explained that M-theory allows the existence of a “multiverse” of different universes, each with different values of the physical constants. We exist in our universe not by the grace of God, according to Hawking, but simply because the physics in this particular universe is just right for stars, planets and humans to form. There is just one tiny problem with all this – there is currently little experimental evidence to back up M-theory. In other words, a leading scientist is making a sweeping public statement on the existence of God based on his faith in an unsubstantiated theory."


Sounds like a comment one of those ridiculious YEC's or God Botherers would make.
I always had my suspicions about you Farsight and what your agenda was.
Highlighting a quote from an obvious fool, about comments Hawking was making on a speculative scenario certainly supports your new "closet God Botherer" status.
 
brucep, Trippy -I appreciate the effort you are making on my behalf as well as for whoever else cares to read your thoughtful post. Know that I am reading and considering well all that you have said. I will respond if and when I have something to say. Thank you.
I'll clarify several things associated with the examples I gave you. All three examples describe predictions made using the Genral Theory of Relativity. All three describe the same type spacetime event. Where one local proper frame compares it's tick rate with the tick rate of a different local proper frame. For example I'll use the relativistic rocket. This example only compares tick rates associated with relative velocity [for this journey to Andromeda the gravitational component is an infinitesimal and will have no bearing on the tick rates]. The relative velocity between the local proper frame of the clock on earth and the local proper frame of the clock on the rocket. If we believe the formulas are correctly derived [they are] then we can find the tick ratio between the earth clock and the rocket clock by just comparing the total ticks over the rockets path to Andromeda to the total ticks of the earth clock as the rocket completes the journey. So it becomes

dTau_rocket/dTau_earth = 28 earthyear/2,000,000 earthyear = 1.4E-5 [.000014]
For each tick on the rocket clock 71,428.57 ticks are recorded on the earth clock. That what we mean when we say the rocket is traveling into the earths future. Keep in mind the acceleration doesn't effect the tick rate beyond the increase in instantaneous relative velocity due to the application of force.

The GPS is a weak field test for the same type of spacetime event. For this event we need accuracy to a billionth of a second when we synchronize the earth based and satellite based clocks. This was an important test of GR and confirms the predictions of relativity theory.

So the time travel which is most likely impossible is traveling into the future, or past, in your local proper frame. Lots of experimental efforts to show this is possible without any positive results. Essentially you need to break the causal path. There's a fun discussion of this in Kip Thorne's book 'Black Holes and Time Warps'. They build a thought experiment using a wormhole as a prospective time machine.
 
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I'll clarify several things associated with the examples I gave you. All three examples describe predictions made using the Genral Theory of Relativity. All three describe the same type spacetime event. Where one local proper frame compares it's tick rate with the tick rate of a different local proper frame. For example I'll use the relativistic rocket. This example only compares tick rates associated with relative velocity [for this journey to Andromeda the gravitational component is an infinitesimal and will have no bearing on the tick rates]. The relative velocity between the local proper frame of the clock on earth and the local proper frame of the clock on the rocket. If we believe the formulas are correctly derived [they are] then we can find the tick ratio between the earth clock and the rocket clock by just comparing the total ticks over the rockets path to Andromeda to the total ticks of the earth clock as the rocket completes the journey. So it becomes

dTau_rocket/dTau_earth = 28 earthyear/2,000,000 earthyear = 1.4E-5 [.000014]
For each tick on the rocket clock 71,428.57 ticks are recorded on the earth clock. That what we mean when we say the rocket is traveling into the earths future. Keep in mind the acceleration doesn't effect the tick rate beyond the increase in instantaneous relative velocity due to the application of force.

The GPS is a weak field test for the same type of spacetime event. For this event we need accuracy to a billionth of a second when we synchronize the earth based and satellite based clocks. This was an important test of GR and confirms the predictions of relativity theory.


Give that man a Tooheys!! :)
 
Thanks, Bruce.

Damned right!
dwarf.gif


May I have a sort of black-and-tan, with Tooheys Old and Extra Dry, please?
drinks.gif
 
More fairy tales designed to get a raise out of people...
Why don't you post some quotes from notable, reputable people regarding Hawking.....Perhaps a quote or two from Sir Roger Penrose, or Kip Thorne, or Brendan Carter, or from a myriad of any recognised physicists.
Perhaps at the same time, we can ask them of their opinion about you.





Sounds like a comment one of those ridiculious YEC's or God Botherers would make.
I always had my suspicions about you Farsight and what your agenda was.
Highlighting a quote from an obvious fool, about comments Hawking was making on a speculative scenario certainly supports your new "closet God Botherer" status.
Address the OP. I put forward a good case. Try to show where it's wrong. If you can't, resist the urge to be abusive.

This is no substitute for addressing the physics.
You're a juvenile liar with low self esteem. The lie is your claim to have made a scientific argument. The low self esteem is your desire to disparage folks who do make scientific arguments rather than making dumbshit assertions like you do. Your trolling is pretty much on the same level as danshawen. You don't have a clue what Hawking is talking about or what constrains empirical tests associated with the quantum gravity domain of applicability. Idiot wind ^2. BTW it's you who is abusing our sensibilities with your never ending troll.
 
You're a juvenile liar with low self esteem. The lie is your claim to have made a scientific argument. The low self esteem is your desire to disparage folks who do make scientific arguments rather than making dumbshit assertions like you do. Your trolling is pretty much on the same level as danshawen. You don't have a clue what Hawking is talking about or what constrains empirical tests associated with the quantum gravity domain of applicability. Idiot wind ^2. BTW it's you who is abusing our sensibilities with your never ending troll.

He might have us both on ignore.

Oh well. Maybe he can chat with MD, Landau and whoever...
 
No I'm not. It's just that as an IT guy I have a good training in analysis and logic, and there are professional physicists who have commented favourably about that.
"Professional physicists" who also presumably think Einstein, Hawking, Thorne et al are idiots. Let's hope they're not responsible for anything important.

The guy was talking patent pompous popscience nonsense because birds flew, men had flown in a balloon a hundred years previously, and there were already internal combustion engines around.
Exactly. And you are talking pompous pseudoscience since we are already directly observing people moving through time at different rates. Since you cannot imagine this ever changing, you believe it is impossible. Just as this guy could not imagine the weight limit seemingly imposed by birds ever changing.
 
Farsight created this thread so he could preach the good news and report anybody who disagreed with him. Others sought to discuss the matter with Farsight, much to their own folly. The OP isn't typically interested in having discussions with people unless they agree with him, it's a pattern of behaviour that's been playing itself out since at least 2007 across multiple internet fora - I participate in two other fora (as a chatter) from which he has been permanently banned precisely because of this pattern of behaviour and the disruption his evangelical preaching causes.

Why mention Farsight's closed ears "isn't typically interested in having discussions with people unless they agree with him," his method has been agreeable to the mods here since 2006.
In that light, you seem to be saying those other sites were wrong to ban him.
Why has no one yet mentioned Gott's time travel using cosmic strings, it's agreeble with Einstein's field equations. Me? the thread's a jumble so why bother.
 
nimbus said:
Why mention Farsight's closed ears "isn't typically interested in having discussions with people unless they agree with him," his method has been agreeable to the mods here since 2006.
I'm interested in discussing physics. If I wasn't I would start threads or post on them.

nimbus said:
In that light, you seem to be saying those other sites were wrong to ban him.
Well spotted. They were. When I've been banned, it's usually because I know more physics than some guy like Quarkhead who wants to be seen as the expert.

nimbus said:
Why has no one yet mentioned Gott's time travel using cosmic strings
Probably because there's as much evidence for cosmic strings as there is for faeries.



billvon said:
"Professional physicists" who also presumably think Einstein, Hawking, Thorne et al are idiots. Let's hope they're not responsible for anything important.
I don't think I've talked to any professional physicists who think Einstein was an idiot. But I have talked to some who think Hawking is a devious quack who has deliberately focussed on unfalsifiable hypotheses. And I have met some who think Thorne is a wannabee celebrity physicist peddling popscience woo.

billvon said:
Exactly. And you are talking pompous pseudoscience since we are already directly observing people moving through time at different rates.
No we don't. It's popscience to say we do. Imagine you can directly observe some guy sitting in his chair. He isn't moving through time at all. His heart moves, his blood moves, light moves, cogs move in a clock. And all this motion is through space.

billvon said:
Since you cannot imagine this ever changing, you believe it is impossible. Just as this guy could not imagine the weight limit seemingly imposed by birds ever changing.
I'm pointing out what actually happens. You're clinging to a fantasy, like the guys who cling to the fantasy of heaven and hell and sweet baby Jesus, and you will not give it up.


I'll clarify several things associated with the examples I gave you. All three examples describe predictions made using the Genral Theory of Relativity. All three describe the same type spacetime event. Where one local proper frame compares it's tick rate with the tick rate of a different local proper frame...
Like I was saying, all we are dealing with here is different rates of local motion.

So the time travel which is most likely impossible is traveling into the future, or past, in your local proper frame.
And again: time dilation is not time travel.

Lots of experimental efforts to show this is possible without any positive results. Essentially you need to break the causal path. There's a fun discussion of this in Kip Thorne's book 'Black Holes and Time Warps'. They build a thought experiment using a wormhole as a prospective time machine.
It's a popscience book. There is no way you can move such that everything else in the universe has somehow magically moved back to where it was before it moved.
 
When Einstein spoke about the curvature of space he really meant spacetime -the combined four dimensions of the universe. You're basing everything on a misconception because Einstein didn't elaborate enough at some point. Space and time are entangled and you can't have one without the other. Maybe if you actually studied physics you'd know this.

Everything you say and have ever said on this subject is therefore total garbage.
 
When Einstein spoke about the curvature of space he really meant spacetime -the combined four dimensions of the universe.
Einstein didn't speak about the curvature of space. He was always very careful to distinguish between space and spacetime. And actually, you'll be hard pressed to find him talking about curved spacetime. Try giving a quote.

You're basing everything on a misconception because Einstein didn't elaborate enough at some point. Space and time are entangled and you can't have one without the other.
I'm not basing everything on a misconception. Au contraire, I'm basing everything on empirical evidence, and on what Einstein actually said. You too should read this:

upload_2014-11-23_14-25-55.jpeg

http://www.amazon.co.uk/World-without-Time-Forgotten-Einstein/dp/0465092942

Maybe if you actually studied physics you'd know this. Everything you say and have ever said on this subject is therefore total garbage.
But I have studied physics. Not at university, but instead I've read most of what Einstein wrote. And when I say something I'm often referring to Einstein saying it. It isn't total garbage. What is, is time travel.
 
Is this a good enough quote?


(As is discussed later in this book, space and time are entangled, so
the curvature of which Einstein spoke is really a curvature of spacetime, the
combined four dimensions of our universe.)


From this book
books


Have you read it? It's only a text book. Or, maybe it's woo?
 
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