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Show ALL Forums  > Science/philosophy  > Time Travel-Is it possible?      Home login  
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 lagoda
Joined: 11/20/2009
Msg: 126
Time Travel-Is it possible?Page 6 of 20    (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)

Eternity. The time since sex was finished and she gets up and goes home.

Merely an eon.

Eternity. The time since sex was finished and he says as she gets up and goes home, "I'll call you".
 lagoda
Joined: 11/20/2009
Msg: 127
Time Travel-Is it possible?
Posted: 4/26/2012 12:58:08 PM
After reading the book "One" some years ago, I realized how fascinating and mind boggling the idea of backward time-travel would be. It doesn't seem likely that any given universe could have simultaneous forward and backward motion of time, but more likely that each manipulation would result in a new time line/alternate universe (dimension), or an existing timeline assuming a coeval reference point to the original.

I don't know, had studies still been bound by classical physics, that we would necessarily have discovered some isotropic property to time, as opposed to the anisotropic dependence to space* we've come to know of space-time. But if there was a way to isolate the properties of time, assuming we could harness the necessities (as msg # 2 suggests: "time travel" machine would require absolutely astronomical amounts of energy and exotic physics'), then perhaps we'd find that it was capable of isotropic iteration.







* It solves the problem of different concepts of time in quantum field theory and general relativity by treating the quantum concept as the more fundamental so that space and time are not equivalent (anisotropic).
http://en.wikipedia.org/wiki/Ho%C5%99ava%E2%80%93Lifshitz_gravity
 gillecroisd92
Joined: 4/26/2012
Msg: 128
Time Travel-Is it possible?
Posted: 4/30/2012 11:51:29 PM
I had, at one point, contemplated, on a many occasions, the idea of time travel. The whole basic idea of paradox issue conflicts with the idea of time travel itself. Although this is a very amateur understanding of the basic concepts of time travel, the idea that time travel itself is appealing to the majority populace in some way or another, in negative or positive ways.
For example, say I wanted to travel back to the time of the Civil War, at the Battle of Gettysburg from June 31st, to July 3rd. Now, I want to help the Southern Confederacy win this war, reasons not to be explained. I would have immediately gone up to Robert E. Lee and had told him, in the eye, that Pickett's charge would fail, and that he needed to move south towards Washington, D.C., and choose a field best fit for his army.
Now, the first conflict comes up, if dressed in civilian clothes of our time period (of course that will never happen, hopefully, because scientists would want to ensure that your presence would inflict minimal damage to the overall future of the battle itself), we will create awkward suspicion, unneeded suspicion, and indellibly, a massive butterfly effect, and so on and so on.
Second, Robert E. Lee was a masterful tactician, and I do believe, as I say so myself, that the past victories between 1861 and 1863 have definitely gotten to his head (minus the Battle of Antietem, in which his army routed, not destroyed, from the battlefield, heavy casualties on both sides). The idea that, despite the weakness of underprepared troops, his confidence in the men he had been fighting alongside with for almost two years now, was at an all time high. Pickett, a romantic and very capable infantry officer, had no doubt of success. Naturally, the very fact that a youngster/civilian telling a supremely capable veteran officer of the Army of Virginia, would seem untasteful, if not offensive and insulting to the officer, and to the army as a whole.
Third, if he was likely enough to listen to reason, he would have attacked on the RIGHT flank of the Union army, around both Little and Big Round Top hills. With this, the Army of the Potomac, under the command of General George Meade, a slow, purposeful, and very hesitant commander and veteran, would have routed with his army to Washington, or up north, farthest away from the Rebel Army.
With this in mind, if the attack succeeded on the right flank, the Union army in full route, and Washington clearly open to attack, Lincoln would have been forced to sign a peace treaty, most possibly a resignation, which would then place Jefferson Davis as president, and the whole idea of a Confederacy, a ruling of states over the central government (unlike now where we have a ruling of the Central Government over the States), and slavery would definitely have taken longer to abolish. If anything, the colored races would be fighting for civil rights NOW, under a flag of rebellion, rather than peaceful protest under Martin Luther King, Jr.
The future would be changed, and a series of butterfly effects would happen, social statures, religion, politics, World War I, World War II, Panama Canal, Korea, The UN, Vietnam, the First Gulf War, The Second Gulf War and the War on Terrorism, oil necessity, ECONOMY, and political party changes and outlooks. We would most likely have two or more Civil Wars against what would seem an oppressive and tyrannical government, when in truth it fought for the people, and each state individually.
The whole idea that time travel could exist, would alter the history of man, and as a very famous quote "He who controls time, controls the destiny of man, and can forever change history in the making." Sadly, if this kind of technology fell into the wrong hands, we would be woefully in a world of S***.
 NO_NO
Joined: 4/12/2008
Msg: 129
Time Travel-Is it possible?
Posted: 5/9/2012 8:00:47 PM
Question.

If one were to time travel, what would happen to the space that once were filled, how about to the space one would arrive in?
 lagoda
Joined: 11/20/2009
Msg: 130
Time Travel-Is it possible?
Posted: 5/9/2012 8:07:40 PM
The goal would be to isolate time so that the change was only in time traveled and not in distance traveled, ie. exactly the same space.

But with accelerations, orbits, etc. that wouldn't be an easy thing to do. Easier going forward.
 jonathanshep.
Joined: 4/28/2012
Msg: 131
Time Travel-Is it possible?
Posted: 5/21/2012 12:38:03 AM
well i dont think well ever b able to time travel.. but if u could travel at near light speed and had the abilaty to fole spacetime..wouldnt that b traveling faster than light ? and if so wouldnt u travel throught time.. to any pornt.. but of we could time travel..you wouldnt b able to chang a whole lot...coust both time lines have to be so alike that u would go back in time in both time lines...
 Aristotle_Amadopolis
Joined: 12/8/2011
Msg: 132
Time Travel-Is it possible?
Posted: 6/3/2012 5:53:00 AM
Time Travel-Is it possible?

If time travel was possible we would already know about it.




Q What do we want?

A Time Travel!

Q When do we want it?

A It's irrelevant.
 blissness108
Joined: 3/6/2012
Msg: 133
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Time Travel-Is it possible?
Posted: 6/7/2012 11:55:18 AM
Since everything exists in the Transcendent, all that is, was and will be, my thought is when we meditate we do indeed make time travel possible. But most probably, it is not fitting our preconceived notion of what one would expect.

If you mean physically, then what about the theory of with mere observation of something, we change it. (the observer effect) If we did go back and interact in a moment, the ripple effect would have consequences on the present and the future as well.
 ChristianDaddy
Joined: 11/28/2011
Msg: 134
Time Travel-Is it possible?
Posted: 6/15/2012 7:42:42 AM
Absolutey, most quantum physics theories, plank, Bohr, string, particle, etc agree with the measurable constant that the universe has and expanded from the point of "The Big Bang" the only real debate is whether the rate is in a constant and/ or exponential. Most of these theories can be reconciled with the ides of the multiverse, or any interuption of quantum mechanics (depending on the theory you follow) can effect a nearby or intersect universe, but most also agree that time is NOT linear and therefore paradox is essentially impossible and any paradoxal event already happened because all time is happening all at once, it is just our perception that makes it seem linear. Wow, can you say "run on sentence?)
 Johnnyzehner
Joined: 3/30/2012
Msg: 135
Time Travel-Is it possible?
Posted: 6/16/2012 4:10:14 AM
Yes, it is....however we have not yet conclusively isolated the mechanism to do so....work on the hadron collider pretty conclusively has substantiated the existence of parallel dimensions and overlapping time. In so much, as we accept time as a particle, the first state of thermodynamic basically subsists from the idea that matter/particle cannot be created nor destroyed....all time exists on some parallel plane of existence....whether or not we will ever have the wherewithal to access it is entirely another matter all together. Somewhere in the universe exists a younger version of ourselves, an older version, and perhaps ultimate alternative versions.

I quote my favorite astrophysicist and pontificator, Sheldon Cooper...."the string theory is not hokum!"
 drinkthesunwithmyface
Joined: 3/27/2012
Msg: 136
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Time Travel-Is it possible?
Posted: 6/23/2012 8:47:49 PM
First of all...time just isn't what we're used to thinking it is. So discussions of this type can't be productive until we start thinking of what time is properly.

Because, second of all, as a clue to how time is thought of incorrectly...time travel into the future is not only possible, but it happens all the time - a refrigerator is a time machine. You put a slice of bologna on your counter top, and another into the refrigerator...and a few days later the slice on the counter top has aged a few days, while the one in the fridge has traveled forward through time, and would notice that his brother has aged while he has not. Just like the difference between traveling light speed and being stationary.
 theanswerguy2
Joined: 4/3/2013
Msg: 137
Time Travel-Is it possible?
Posted: 6/15/2013 9:35:56 PM

Also, there is the paradox issue. If you could go forward or backward in time, you would alter the reality of the time you travel both to and from. Your presence would change things, therefore you could not return to the reality you left because you changed it and by altering the past or present you forever change that reality also, meaning no one else could go backward or forward to the same circumstances you traveled to.


See the original Star Trek episode "City on the Edge of Forever" for a thoughtful exploration of the paradox issue.
 bamagrl68
Joined: 11/14/2010
Msg: 138
Time Travel-Is it possible?
Posted: 6/16/2013 9:02:30 PM
drinkthesunwithmyface- Interesting theory, except the both bologna's aged. The bologna in the fridge didn't have to worry about bacteria, his brother did ;)
Not an accurate analogy, but food for thought :D (Ba dump BA!)
 Lone-Loser
Joined: 10/11/2012
Msg: 139
Time Travel-Is it possible?
Posted: 6/16/2013 10:17:47 PM
If one 'could' travel though time, as in beyond the 'time travel' we all do(Which is a snail pace forward lol), it could ONLY be back in time, and once you 'landed' any and all 'future' from that point would be deleted(IE you would no longer be able to move back forward, in essence, you would have 'reset' anything beyond the point you hit)
 drinkthesunwithmyface
Joined: 3/27/2012
Msg: 140
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Time Travel-Is it possible?
Posted: 6/17/2013 4:03:09 AM
bamagrl68:

Both bologna's did age, but not at the same rate. That's why we use refridgerators. The rate of processes within the slice of bologna in the fridge was reduced, relative to the one on the countertop at room temperature. It aged slower. It's "time" slowed down, relative to the other one. And that's why the one didn't have to worry about bacteria and the other did. The activity of bacteria, aging, etc, are part of the system and occurance of events and processes, of energy transduction. It's an analogy that makes the fridge a spaceship that travels near light-speed...time for the spaceship is slower relative to the stationary observer, the bologna on the countertop, or the reverse vice-versa. Two different mechanisms which cause the same type of effect. Of course, those effects aren't exactly the same from the one to the other...but this is like the difference between how magnetism works only on certain elements, or more on some than others, but gravity works on all matter the same. Temperature doesn't affect things in exactly the same way as traveling near light-speed, but it's the same type of thing concerning what time is.

Lone-Loser:

How would we travel backwards in time? And how would we only be able to go backwards, but not forwards?
 Lone-Loser
Joined: 10/11/2012
Msg: 141
Time Travel-Is it possible?
Posted: 6/17/2013 12:40:45 PM
I don't know how... I doubt anyone does, cuz each time some poor sod figures it out, he goes back in time and resets everything :P


And why only back? Think of a tape recording as its recording. Thats time. Theres NOTHING on the tape in the 'future' but once u go back, you start recording over it again, resetting all that's happened from that point.
 bamagrl68
Joined: 11/14/2010
Msg: 142
Time Travel-Is it possible?
Posted: 6/17/2013 3:12:25 PM
drinksthesunwithmyface- Let's say you buy the bologna, put one slice on the counter, the other in the fridge for 3 days.
You have a guest over and they ask how old BOTH pieces are, the answer for both is 3 days old.
I would pick the one in the fridge because it was protected from bacteria/spoiling but, none the less, they are equal in age.
 Lone-Loser
Joined: 10/11/2012
Msg: 143
Time Travel-Is it possible?
Posted: 6/17/2013 3:19:16 PM
The bologna question again... has NOTHING to do with the passage of time, but more to do with, as she said, bactira and the growth rate, etc. NOT the meat itself or how 'old' or how much you (LOL) 'slowed time'

I mean HELL if your idea was right, I could go up to the north pole, and sit there for a week, and come back and only 1 day passed? Just cuz i was 'frozen'

Again, time, as we understand it, is only born from our inability to accept something we cannot see yet affects all around us. Time is OUR invention.
 drinkthesunwithmyface
Joined: 3/27/2012
Msg: 144
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Time Travel-Is it possible?
Posted: 6/18/2013 4:26:37 AM
loneloser:

each time some poor sod figures it out, he goes back in time and resets everything :P


And why only back? Think of a tape recording as its recording. Thats time. Theres NOTHING on the tape in the 'future' but once u go back, you start recording over it again, resetting all that's happened from that point.

Well, you're making an analogy, but making the assumption that is how it happens in the first place. Do you know how it'd happen that somebody could go back?

The bologna question again... has NOTHING to do with the passage of time, but more to do with, as she said, bactira and the growth rate, etc. NOT the meat itself or how 'old' or how much you (LOL) 'slowed time'

I mean HELL if your idea was right, I could go up to the north pole, and sit there for a week, and come back and only 1 day passed? Just cuz i was 'frozen'

Again, time, as we understand it, is only born from our inability to accept something we cannot see yet affects all around us. Time is OUR invention.

Yes, it has everything to do with what time is. That is what time is. Sitting on the north pole isn't a good example. If you were frozen, then yes, time for you would slow down. You wouldn't survive, probably, because organic tissues don't react the same at freezing temperatures such that you'd be alive once thawed, unless we addressed those dynamics with some kind of sought-after cryogenic technology. And, yes, we do see time. Time is only the flow of energy transduction. Things changing. Events happening. We see these things. That's why we can perceive time.

bamagirl:

Let's say you buy the bologna, put one slice on the counter, the other in the fridge for 3 days.
You have a guest over and they ask how old BOTH pieces are, the answer for both is 3 days old.
I would pick the one in the fridge because it was protected from bacteria/spoiling but, none the less, they are equal in age.

But that's the point - this is what time is. The one in the fridge is not as old, that's why it's in the fridge, and that's why you'd eat it and not the one on the countertop, because, as you say, it would be spoiled, because it's had more time for those processes to take place (and in this case, the low temperature deters bacterial growth for other reasons than the slowing of time). From your time-frame, you've had both for the same amount of time, but that doesn't say what time means for each slice. Time for each slice is different. They are not equal in age.
 Lone-Loser
Joined: 10/11/2012
Msg: 145
Time Travel-Is it possible?
Posted: 6/18/2013 12:48:21 PM
lol i think your simply confusing basic ideas for teh wrong things.

time is not changed between outside or inside the fridge. Even for the 'frozen' object, which has 'passed' though the same 'bracket' of time, regardless of its 'state'

See the LAST word of the above sentence is what you are arguing for. its STATE. Google states of matter, and compare it with the bologna analogy.

Its state is different (one is cold, so 'life' itself slows down, while the other is warm, and microscopic life can thrive, time itself, except maybe - as i pointed out in another thread - its PERCEPTION of time - ie it was cold so things 'slowed down' but time itself was universal, and the 3 days for one was 3 days for the other.

really your just trying to argue basic physics and biology but confusing what those actually are.

Philosophy is about deep thinking on things which have no 'answer', not trying to change existing truths to 'support' your arguments.
 Aristotle_Amadopolis
Joined: 12/8/2011
Msg: 146
Time Travel-Is it possible?
Posted: 6/18/2013 1:18:02 PM

Time Travel-Is it possible?

No, because if it was, we would already know about it.


Ergo:
What do we want? Time Travel

When do we want it? That is irrelevant.
 drinkthesunwithmyface
Joined: 3/27/2012
Msg: 147
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Time Travel-Is it possible?
Posted: 6/18/2013 4:29:33 PM
loneloser:

You're still thinking of time as a universal, like most are used to doing. But time is simply how much energy transduction has taken place. A system which has slowed down does not mysteriously pass through a bracket of time the same as something else. Three days for the slice of bologna within the fridge is not the same as three days for the slice on the countertop. To say "three days" is only to say that the Earth has rotated three times, and that is only saying what times is for the Earth. That time doesn't really exist for us, except that we use it for certain nonetheless applicable practical purposes. For example, it's true to say that we had both slices for three days, using the clock of the day as the intellectual-tool of time-keeping for certain purposes. But this doesn't mean that the two slices are of the same age...they are the same age in the sense that we had both for the "same amount of time", relevant to us, but relevant to the two slices, time is different.

Yes, this analogy, or metaphor, isn't perfect, so the metaphor might break down, but it's still a completely good demonstration of what time is. Time is nothing more than how many things happen for a particular system within a given period of time - relative to another system, in other words. Imagine that you and a twin were born at the same instant. Forty years later, you might not be exactly the same age. You would both be exactly forty years old at the same time, but only when it's understood that that only means that the Earth went around the sun forty times since you were both born. But otherwise you might not be the same age. If one of you remained within your home-town his whole life, and the other one always took airplane trips, eastward to make it less complicated, and/or had a higher metabolism so that more processess, more energy transduction, took place within that one's body...that one would be older. Time would have passed more for that person. It's what happens when we talk about someone going near light-speed in a spaceship...time for the traveler passes slower relative to a stationary reference.

(post edit - always flying eastward would try to make him younger. It gets complicated. But the point is the same. For example, when something is frozen or just colder, it slows down processes at a certain level, but won't necessarily have an equal amount of effect at the atomic or subatomic level, which complicates the total "time equation" ?)

Again, the mistake you're making, that we're all used to making, is thinking that time is some kind of underlying or separate force or phenomena. It isn't. In this sense, it doesn't even exist. There is no such thing as time, as we're used to thinking about it. Time is simply things happening. Energy transducing through forms. We perceive time because we perceive energy transducing, disguised as all the normal events of life. The passage of time, and the rate of it's passage, is determined by how many discreet events take place, or how much energy transduction takes place, for one given system versus another.


Philosophy is about deep thinking on things which have no 'answer', not trying to change existing truths to 'support' your arguments.

What is the point or usefulness of this statement? What's it mean?
 drinkthesunwithmyface
Joined: 3/27/2012
Msg: 148
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History
Time Travel-Is it possible?
Posted: 6/20/2013 2:55:09 AM

Oh that is a new one.Put one slice in the fridge and leave the other on the counter and after three days the time passed relative to the two slices is different? That is nearly the nuttiest thing I have ever heard.

The reason it's hard to accept or understand what I'm saying is because we're used to thinking that time is something that it's not. The point is that the rate or amount of energy transformation, or events, is what time is. This is what time is.

If not, I wish someone would tell me what they think time is. Let's assume that I'm wrong, which I'd have no problem with, but then somebody should explain what time really is, if it's not what I'm thinking it is. And of course, if someone can explain what time is, they should do so without unsubstantiated rhetoric. Be technical, concrete...objective.
 OTTO BONN
Joined: 4/20/2006
Msg: 149
Time Travel-Is it possible?
Posted: 1/2/2014 8:17:19 PM
Both twins would be forty years old regardless of anything. The only possible way one could be older is if he circled the earth in an aircraft for 100 years and then he would be billionths of a second older.

It depends on which direction the aircraft is traveling. Time measured with a clock on an aircraft traveling eastward passes more slowly than with an Earth-based stationary clock. Time on a westward aircraft passes faster when compared to the stationary reference.

One hundred years on a commercial jet would not be required to achieve a difference of billionths of a second. One flight eastward around the world was enough to slow an atomic clock by approximately 59 nanoseconds in 1971 in the Hafele–Keating experiment.

If one of you remained within your home-town his whole life, and the other one always took airplane trips, eastward to make it less complicated, and/or had a higher metabolism so that more processes, more energy transduction, took place within that one's body...that one would be older.

Eastward flights would make one appear to be younger when compared to their Earth-based stationary counterpart reference, not older.
 localRenoite12
Joined: 4/17/2013
Msg: 150
Time Travel-Is it possible?
Posted: 1/4/2014 9:08:17 PM
It is currently theorized that traveling into the future is possible but not the past.
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