Is time linear?

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Killersamman

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hypothetical fact said:
No. Not if you get sucked into a black hole they aren't because the universe would be moving at a different speed as your perception. Or you'd die instantly... nobody really knows until we throw someone in.
*chuckle*
And I suppose he'd just shout what it's like back? Through a vacuum as well, how impressive :)
 

KingPiccolOwned

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elricik said:
KingPiccolOwned said:
elricik said:
All you're doing is dividing up this something into successively smaller intervals.
In fact that's a major area of contention in quantum research : Does the notion of time have any meaning or is it merely the concept of the interval that has relevance ?
Well that is pretty much why the concept of time was created to measure the relevance of events. That and so you know when the hell to plant crops and such. I'll tell you one thing that really bugs me, that is do we experience our lives as a mere recollection of memory or do we actually live in the same time that we are experiencing?
Now I feel like reading Watchmen again since theres a whole chapter about that when Doctor Manhattan leaves Earth.

Anyway my main gripe with time, is that we have no way of keeping it consistent if we were to leave our planet. For instance, if you were to live on Pluto, a foot would still be a foot, and a liter would still be a liter. But we base practical time (clocks) one the Earth's rotation. So if you brought a watch you might as well destroy it, it has no value since the time on Earth is different then on Pluto. We don't age differently on Pluto even though there would be a change in the time period based on our practical laws of time on Earth. If we are truly always living in the past, as in right now, the words I am typing right now are in the past, and as I read them I am merely recalling the memory of writing them, then that would mean that time is linear. The future will always be the past as it happens, that means that there is no "present" their is only what has happened, and what is about to happen.
Trippy.
 

S.H.A.R.P.

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I just woke up, so... well nothing but a warning.

Time is movement. If everything stands still, time stands still.

Movement is warmth. If something reaches absolute zero, it absolutely stands still.

Warmth is energy. Hence, time is energy.

Not exactly an answer, but these are my thoughts on the subject. Anyone care to comment on it?
 

crudus

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Killersamman said:
hypothetical fact said:
No. Not if you get sucked into a black hole they aren't because the universe would be moving at a different speed as your perception. Or you'd die instantly... nobody really knows until we throw someone in.
*chuckle*
And I suppose he'd just shout what it's like back? Through a vacuum as well, how impressive :)
I would be more impressed with how he is shouting so that his voice is moving faster than light.
 

Agent-Sliper

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Apr 28, 2009
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Time, dr Freeman?
Is it really that time again?
It seems as if you only just arrived.

Sorry i'll stop this now.
 

Killersamman

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crudus said:
Killersamman said:
hypothetical fact said:
No. Not if you get sucked into a black hole they aren't because the universe would be moving at a different speed as your perception. Or you'd die instantly... nobody really knows until we throw someone in.
*chuckle*
And I suppose he'd just shout what it's like back? Through a vacuum as well, how impressive :)
I would be more impressed with how he is shouting so that his voice is moving faster than light.
I think he's Chuck Norris' son... or cousin. That would explain how he's able to do some of the stuff, but not quite as amazing as Chuk Norris himself :)
 

linchowlewy

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Nov 27, 2008
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VeX1le said:
NO TIME IS NOT IN A LINE IT IS IN A CIRClE THAT IS WHY CLOCKS ARE ROUND!

cookies and pie for reference

Caboose! i win, now give me my cookies.

also i find any talk of time travel too confusing.
 

Valiance

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<img src="http://upload.wikimedia.org/wikipedia/commons/5/55/8-cell-simple.gif" /img>

I wish I could tell you for sure, but strange things have been happening to me recently when it comes to memories, recollection, and sort of...re-living things again for a short amount of time.

Like, a sound or musical piece triggers a memory...and that memory resurfaces, and it's not me thinking about the memory - for a good 6-7 seconds, I'm there. I feel it, I remember it, I see it, I hear it.

It's scary, but...I can't even comprehend what the hell it is, and sometimes I just think "Oh I'm really fucking tired and I'm buggin' out."

But really though. However we perceive time is however time is. It is most definitely not linear...Honestly, humanity spends much time studying the past. And studying the future. And wondering about currently impractical concepts. It makes me think that perhaps time, and our sensations, feelings, emotions too, are not simple and linear.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Next time you look at the sky, think about how the stars you see flickering might not even be there. We're sensing it by sight, right? To see it, it has to be lit, right? The speed of light is (blah), right? Many stars are several light years away, right? That means I'm not seeing it. I'm seeing it how it was before. Kinda like lag in an online game. Except lagging out thousands, hundreds of thousands, perhaps, of years.

It's quite astonishing if you think about it. There might be amazing things happening right now that we will never conceive - even if they were close enough to see over time...but they will be projected into our space as time goes on. Perhaps our Alpha Centauri will supernova and in a million of our mere, abstracted "years," there will be some form of life on this planet that sees/senses it. As opposed to us seeing it right now.

If it seems convoluted, I'm trying to say that time and space are connected somehow. I don't know how, but it is. And if we find a way to bend that space, or bend that time, that's the only way we'll be able to really find out, you know? Maybe some of us already know that time is NOT linear...And they left, and won't be coming back for a while? Maybe there are infinite dimensions where every possibility has happened? Maybe the "big bang" happens every once in a while, eh? Like a universal cycle? Maybe hundreds, thousands, billions of our "years," but to the universe itself, perhaps a split-second?

And perhaps each time it does, a new possibility happens. There's no milky way galaxy this time. Earth is the 4th planet from the sun this time. We won't have zebras this time. Valiance will typo the next sentence this time. And it's constantly happening, everchanging, and we can't perceive or comprehend it, but some things will inevitably line up, and when we imagine memories...and think about the past...

We're really there, living it in another universe, another dimension for a while?

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I WOULD GIVE YOU FORUM GOLD IF YOU READ THIS POST.
 

mangus

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Jan 2, 2009
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time is not a measurable substance, but it is very linear. This was first proved back in 2184 by Dr. Nicholas Pickersgill during the first trials of the old "dial-up" time machine. Jeeze.
 

Altorin

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May 16, 2008
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Darth Mobius said:
Backwards. The Speed of light is the FASTEST an object can go, and when you start getting closer and closer to the speed of light, your aging processes slow down as you get closer towards it.

At least, that is what I understood it to mean when Maxim dumbed it down using Elevators and Ryan Seacrest, and a Space Ship and the Olsen Twins...
Yeah, ok, that's pretty much the same thing that I said, but I explained how and why it happens, and you just talk about Ryan Seacrest, then you mock me again?

I talk about Einstein and you talk about Maxim? Jackass?
 

Reaperman64

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Dec 16, 2008
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To us time is linear because of the way we perceive it.

Although It is beleived in scientific comunities that it can be warped by large masses, just as space can be
 

Zacharine

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Reaperman64 said:
To us time is linear because of the way we perceive it.

Although It is beleived in scientific comunities that it can be warped by large masses, just as space can be
Actually it has been proven that time is warped along with space near large masses.
 

traceur_

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Feb 19, 2009
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Thinking about time hurts my head, the paradox's, the relativity GAH! It's beyond human comprehension so I try not to think about it.
 

mangus

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By mccmangus [http://profile.imageshack.us/user/mccmangus] at 2009-06-07

now, as you can see here, time travel is quite linear. obviously, one cannot travel forward in time through any standard means (besides waiting), and even nonstandard attempts have met with near-cataclysmic failure. The invention of the "dial-up" time machine led to short chronological leaps backwards, and even then only between two timelines. research into chronological physics soon led to the creation of the temporal warp engine, a relatively unstable method of time travel which resulted in slightly longer jumps, and on one or two experimental runs, managed to leap to yet another timeline. Incident 01, the first and only recorded instance of combining dial-up and temporal warping technologies ended in tragedy and gave humanity its first experience of a temporal collapse. What happened was that the distance of the dial-up jump got caught in a positive feedback cycle with the factor of the temporal warp, causing the machine to travel further and further back in time to before creation, creating a temporal paradox and collapsing an entire timeline. This horrific accident soon led to worldwide legislation banning all time travel, for over half a century until the successful activation of the first entanglement-based machine. Unlike the temporal warping of a flux capacitor or the chronometric dating used by dial-up booths, entanglement machines are limited to travelling back only to the point when that particular machine first became operational, and always ends up in a unique timeline being accessed. With such a safe method of chronological regression, it's easy to see why Entanglement-based machines are now the industry standard, and the only machines endorsed by the society for the protection of the temporal continuum!
 

Easykill

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It's possible that time itself does not exist, only an infinite number of frames with nothing connecting them. Or, it could exist, but be unstable. as long as time is a uniform presense throughout the universe, we have no way of knowing whether it slows down, speeds up, or stops altogether... for a time. God that's confusing.
 

Zombie_Fish

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Mar 20, 2009
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Easykill said:
It's possible that time itself does not exist, only an infinite number of frames with nothing connecting them. Or, it could exist, but be unstable. as long as time is a uniform presense throughout the universe, we have no way of knowing whether it slows down, speeds up, or stops altogether... for a time. God that's confusing.
Or it could be just linear. The problem is we can never know for sure. It could be a million other things as well. I do like your theory though. Interestingly, an arguement for God existing states that he lasts forever, as he is timeless and lives outside of time.

Time can be just an infinite number of frames that are all connected as well though. As I have said, it is scientifically impossible to prove, only philosophically.
 

ILPPendant

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No one really sees time as linear these days. Even under general relativity there is no real concept of time if the universe is viewed as a whole: time exists differently for each observer so it doesn't make much sense to try and define an absolute time, just as we don't have an absolute space. Time and space are stitched together in reference frames and might as well be inseparable.

The trouble is that this doesn't really work for quantum mechanics. Now superficially general relativity and quantum mechanics don't appear to have anything to do with each other, but since the two theories differ on their approach to things like time physicists have so far been unsuccessful in reconciling the two. (Ever heard of gravitons?) Time in particular is a bit of a headache; as explained above in general relativity time is merely a convenient form of measurement, but in quantum mechanics time is a crucial concept that records the changes in probabilities that map the system. What's more this measurement of time is done from "outside" the quantum system meaning that we in effect have absolute time, not just variable time in a frame of reference. Obviously this contradicts relativity so at least part of quantum mechanics has to go.

Sensibly, we're working on the "time" bit rather than ditching the whole lot. Here's where things get awkward: if we measure a particle's state in a quantum system then time becomes crucial to the results because the order in which you measure certain properties affects the outcome. This is a phenomenon called wave function collapse and is brought about interaction from the outside world. What happens is that initially a wave function takes many different states simultaneously none of which is truly "known" (cf. Schrodinger's* cat [http://en.wikipedia.org/wiki/Schrodinger%27s_cat]) but once we interact with the system and examine it we force it to take a single form. To expand on that if we examine two properties of a particle then the result of the first will affect the second; reversing the order of interaction will almost certainly provide a different result.

Because time is such a fundamental aspect of quantum mechanics removing it is attractive but very difficult. However, we may have a solution as work being done in France takes the novel approach of expanding the boundary enclosing the quanta to include the "real world" - the devices conducting measurements are now part of the quantum system. The immediate consequence of this is that measuring a state no longer collapses the wave function as technically no outside interaction is occurring. Instead the both the "measurer" and "measuree" are described by a new, single wave function which only collapses when the entire miniature system is examined.

How does this eliminate time? Consider a finite path. [http://en.wikipedia.org/wiki/Path_(graph_theory)] Traditional quantum mechanics has us defining a route by the vertices visited and in what order but this approach allows us to simply draw a line along the path to describe the route we plan to take and statistics takes care of the rest. As a result, time is a non-issue.

This does leave us with the question of why we can perceive time if it doesn't exist. This is where the idea called "thermal time hypothesis" comes into play. The idea behind it is that what we see as time is an averaging of the different quantum states in much the same way that temperature is an averaging of different molecular vibrations: if you look closely at the molecules of a block of metal you might see them all vibrating violently, but when you pick the entire block up you don't feel its vibrations, you feel its warmth. This does not, however, change the fact that ultimately temperature is described in terms of molecular excitation which is all handled by the field of statistical thermodynamics. This hypothesis proposes a similar treatment of all the quantum systems which will hopefully average out to form time, eventually resulting in (we hope) another box ticked off in our quest for grand unification.

The moral of the story: time is not only non-linear, it is non-existent.

You can read more here. [http://www.ws5.com/spacetime/Forget%20Time.pdf]

*The Escapist does not appear to like umlauts.
 

Russian_Assassin

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Time is a dimension which we haven't found a way to travel through yet. That's my theory at least. I try not to think that it's simply the movement around the sun, because that is really really REALLY boring. And I don't want to believe in boring things dammit!