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Does the Past Still Exist?Follow

#31 Oct 11 2005 at 5:08 PM Rating: Decent
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Dodobird wrote:
Just how long is "now"? What is the smallest measurement of time? If everything is constantly being destroyed and re-created at the smallest measurement of time (if such a thing exists), well... um... damnit. I was on a roll.



As long as we would assume that the "Future" doesn't exist... can we conclude that the universe is constantly being "re-created"

although if you concider the energy that must be expended in that process, you could question the validity of it..

however, i could be that some things have a more semi-permenant existance, things such as galaxies and mountains... although not so much permenant as it is more slow to change.

AS one looks farther down the scale of things... change would appear seemingly more chaotic.. wehn you concider the scale of atoms and electrons.. change seems to occur so rapidly that it appears to be on in an infinate scale... But I think that it's all that we are capaple of noticing with the facilities available to us as self-aware humans.

The Present seems to be an infinatly small instant of reality laying between past and future.. The future would be the state of the universe that is created by the forces of the Present(and past) acting within their potentials... forces such as gravitational, and electrical, and nuclear... All of these forces in their own way dictate waht the future will be.

Big question is how "consciousness" would fit into that equation. Otherwise, waht would be the point in thinking about any of this?


His Excellency MoebiusLord wrote:
while the reflection of the past will always exist in the form of long range light travel, our relation to it will remain irrelavent as it is but an illusion.


AS I said, it may be that the past "exists" still in the form of radiation... as you seem to agree.. although ther are more forms of radiation than just Light.

But as much as I would agree that the past is irrelevant to our lives... the past is that from which we grew out of.. and the Present.. is waht dictate waht the Future will be..

linear thinking FTW!
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#32 Oct 11 2005 at 5:24 PM Rating: Good
"How can I tell that the past isn't a fiction designed to account for the discrepancy between my immediate physical sensations and my stae of mind?"
#33 Oct 11 2005 at 5:29 PM Rating: Good
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Dracoid wrote:
I bought a time machine next week
You're all will have going to have been are pwned!
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#34 Oct 11 2005 at 5:36 PM Rating: Good
Kelv wrote:
His Excellency MoebiusLord wrote:
while the reflection of the past will always exist in the form of long range light travel, our relation to it will remain irrelavent as it is but an illusion.
AS I said, it may be that the past "exists" still in the form of radiation... as you seem to agree.. although ther are more forms of radiation than just Light.

But that's just it. I don't agree with you. It does not exist. A reflection of it exists, but it is quite gone.

Conceptual thinking FTW!!!
#35 Oct 11 2005 at 6:47 PM Rating: Decent
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The dinosaurs don't themselves exist, but their bodies decomposed and were absorbed into the Earth. Conservation of matter, my friend.


I agree with you, but that's a horrible analogy.
Yes, it wasn't a great analogy but you're technically wrong. The dinosaur is the ENTIRE thing. You can talk about the dinosaur's legs, feet, molecules, teeth, whatever, but those are PARTS of the dinosaur. The actual dinosaur no longer exists. Just whatever is left of it that's been decomposed and givin its energy and whatnot to everything around it.

Kelvy keeps saying things from the past leave their radiation as their "legacy" which is technically true. The future doesn't have radiation because it hasn't happened yet. So there's a fallacy in your attempt to thwart that argument Demea.

Just because something from the past's radiation still lingers (which I doubt, it's probably all been absorbed by something and re-emited by now) doesn't mean that physical thing or event still exists, just the by-product of that thing or event.

I have to stop typing now. The public computer I'm on has a really loud keyboard Smiley: frown
#36 Oct 11 2005 at 6:51 PM Rating: Decent
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It's just a jump to the left.........


.....and then a step to the right.
Put your hands on your hips? only time I've heard that song is on the Drew Carey Show...
#37 Oct 11 2005 at 7:09 PM Rating: Decent
We cannot be the past. The past is wholly dependent on the present. Without present there is no past. Ofcourse this could be a "chicken or egg situation" but it seems to me that the present writes the past, and the present becomes the future Time is also inaccurately measured, as we base our "time" on this rock as it circles the sun. In the grand view of things, is a very primitive, and inaccurate measure of time. So knowing the smallest measure if time is impossible to know. Time doesn't have a physicial or energenic force(as known as of yet).

Encyclopedia wrote:

Yet at the most primitive level, human awareness of time is simply the ability to distinguish which of any two events is earlier and which later, combined with a consciousness of an instantaneous present that is continually being transformed into a remembered past as it is replaced with an anticipated future. From these common human experiences evolved the view that time has an independent existence apart from physical reality.


Time just might be a conception only thought of by Humans(considering if there is other intelligent life in the universe). That is all we(humanity) know as the very fabric of "time". It is upon that measurement of "time" we base a lot of other measurements, speed, work, energy amounts, ect. One's awareness of time moving from past to future is purely subjective.


Present defines reality in a part. Height, width, depth, and time. Philosophers contrast reality with non-existance which would bring up a load of other questions. My opinion is that the "present" is reality. Past once exsisted in the "present" but doesn't exist anymore. The future is unborn and thus doesn't "exist" yet. Things(like dinosaur bones) that existed in the past, still exsist in the present. Due to age(passing of time), the bones are not the same as they were in the past. Myself 10 minutes ago, is different than myself in the present. No matter how small the difference, there is a difference. And that past difference doesn't exist anymore so thus is not real.


My head hurts now...
#38 Oct 11 2005 at 7:42 PM Rating: Decent
Time is not a seperate dimension but time and space are one spacetime dimension out of, uh, how many was it... 7?

Time is a variable that keeps you from being in more than 1 place. The rest i agree with the last guy. The past and future don't exist, even though you can see the past with time dilation, but it is all relative.
#39 Oct 11 2005 at 11:24 PM Rating: Good
Roller the Charming wrote:
Quote:
It's just a jump to the left.........


.....and then a step to the right.
Put your hands on your hips? only time I've heard that song is on the Drew Carey Show...


I have it on vinyl. Smiley: waycool
#40 Oct 11 2005 at 11:53 PM Rating: Decent
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EU-FU[b]CKING-REKA[/b]

If the "Present" is the only thing that exists.... and all that the past is comprises of various types of radiation bi-product; then the universe and all formsof energy and patterns of particles as a whole are in a constant state of this change. We call the "logging" of this change Time.

many things seem to stay the same on some levels, like mountains and rivers. Things that are more permanent have a lesser probability of chaos, and so are less "radiant"... however , other patterns of particles.. on other differnt levels of quantum consistancy can be more radiant, or more prone to cause a change in the structure of the universe.

The more radical the change, the more radiation is created.

Concider the heat that rises from your body.

Concider; if you drop a nuclear bomb, it causes changes that are so extreme, that all of the radiation would kill you.


there's science in here somwhere.

Edited, Wed Oct 12 01:13:29 2005 by Kelvyquayo
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#41 Oct 12 2005 at 12:26 AM Rating: Good
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EUR-F[b][/b]UCKING-THEORY-REEKS!!!

Fixed for common sense.

You still ignore the fundamentals. The radiation you call the past is, in fact, matter in the present, reflecting a previous state. There is no inherent "past" in it at all. Light being the most obvious example of radiation all around us, we must accept the fact that though the offset is ridiculously small, none of us has ever visually experienced the present, but that does not mean the past has ever reached our eyes. The light that reaches us is comprised of real-time, "present" photons reflecting the state of matter at the time of reflection.

EDIT: I see you up there, Niobia. Chime in, brain girl.

Edited, Wed Oct 12 01:39:38 2005 by MoebiusLord
#42 Oct 12 2005 at 5:18 AM Rating: Good
Gurue
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It is way too early for me to be reading this thread.
#43 Oct 12 2005 at 7:31 AM Rating: Decent
I once saw two seconds into the future, but by the time I realized it, it had become the past already. I spent the "now" in a sneeze, what a wasted "now".
#44 Oct 12 2005 at 9:29 AM Rating: Decent
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His Excellency MoebiusLord wrote:
Quote:
EUR-F[b][/b]UCKING-THEORY-REEKS!!!

Fixed for common sense.

You still ignore the fundamentals. The radiation you call the past is, in fact, matter in the present, reflecting a previous state. There is no inherent "past" in it at all. Light being the most obvious example of radiation all around us, we must accept the fact that though the offset is ridiculously small, none of us has ever visually experienced the present, but that does not mean the past has ever reached our eyes. The light that reaches us is comprised of real-time, "present" photons reflecting the state of matter at the time of reflection.

EDIT: I see you up there, Niobia. Chime in, brain girl.

Edited, Wed Oct 12 01:39:38 2005 by MoebiusLord



I agree. I agree that the remnant of the state of paticles of the past, only exist in the present... it is riduculous to say otherwise. I think we're getting confused on semantics. I prolly shouldn't word it as if this radiation is the actual past... as it obviously exists in the present.

However, I think that the light and vibration caused by this change could somehow serve as a record of the past, similar to the way we explore the edge of the galaxy to try to see get ideas about the past.


But no, there is only the present... as in the present state of the universe. The present state is constantly changing... we view that change as Time. The implications of this... is it could very well be that our consciousness may maintain itself withing it's own core "frequency" whist the rest of physical reality shalll change around it... This would make life and death fairly irrelevant wehn it comes down to it... being that; in wahtever way your particular pattern of particles are manifested..whether ou call it soul or consciousness... they will always be there.... Such is waht makes consciousness.. is the sustained consciousness that holds it's form despite other forms of chang in the universe... including the solid organic vessel that is your body.


craaaaazy
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#45 Oct 12 2005 at 1:06 PM Rating: Decent
"You would measure time the measureless and the immeasurable.
You would adjust your conduct and even direct the course of your spirit according to hours and seasons.
Of time you would make a stream upon whose bank you would sit and watch its flowing.
Yet the timeless in you is aware of life's timelessness,
And knows that yesterday is but today's memory and tomorrow is today's dream.
And that that which sings and contemplates in you is still dwelling within the bounds of that first moment which scattered the stars into space.
Who among you does not feel that his power to love is boundless?
And yet who does not feel that very love, though boundless, encompassed within the centre of his being, and moving not form love thought to love thought, nor from love deeds to other love deeds?
And is not time even as love is, undivided and paceless?
But if in you thought you must measure time into seasons, let each season encircle all the other seasons,
And let today embrace the past with remembrance and the future with longing."
- The Prophet, by Kahlil Gibran

there!... problem solved =)... now we'll never have to think of this ever again! =)...... .... ... right?
#46 Oct 12 2005 at 9:12 PM Rating: Decent
TheyMightBeGiants wrote:

You're older than you've ever been
And now you're even older
And now you're even older
And now you're even older
You're older than you've ever been
And now you're even older
And now you're older still

Time is marching on
And time is still marching on

This day will soon be at an end
And now it's even sooner
And now it's even sooner
And now it's even sooner
This day will soon be at an end
And now it's even sooner
And now it's sooner still


Yes, space and time are intimately related. It's the 100 year anniversary of the discovery. See, for example, Spacetime Physics by Taylor and Wheeler. No, you don't have to learn calculus first, just algebra. Yes, some knowledge of basic physics would help. No, it's not quantum mechanics and it is independant of any knowledge of quantum.

Other then that, most of the thread is philosophy. "Now" is not "the past" or "the future" just like zero is neither positive nor negative.

No, you really can't measure zero, say, voltage; just the same, perhaps you cannot measure the "now-ness" of the moment.

However, we talk about now and we all know what we mean. Isn't that enough?
#47 Oct 13 2005 at 12:10 AM Rating: Decent
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Quote:
most of the thread is philosophy. "Now" is not "the past" or "the future" just like zero is neither positive nor negative.



I will agree with this, because it can still be argued whether or not any sustained form of consciousness can exist regardless of the solid world.

but I actually do agree that in regards to physics, that there is no past or future, only the ever-changing present state of the universe.
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#48 Oct 13 2005 at 12:30 AM Rating: Good
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Quantum theorists speculate that time may be mallable. Michael Creighton used some of those ideas in his last book, Timeline, where if you picture time as a river, you as an observer are standing on the bank watching it go by. However, if we knew how to do it, moving forward or back along the river would allow you to revisit a section of water/time or speed up time and see the "future" by repositioning yourself farther up the bank.

The sticking point, of course, is that in this analogy, we have no legs and we are morbidly obese from our hands being too busy stuffing Big Macs in our mouths to allow us the luxury of motoring along Time's banks.

Totem
#49 Oct 13 2005 at 12:41 AM Rating: Good
Quote:
Michael Creighton used some of those ideas in his last book, Timeline,

Yeah, but look how far off he was with Andomeda Strain. We're gonna die from bird flu, not space flu. F'ucking quack.
#50 Oct 13 2005 at 7:54 AM Rating: Decent
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The world's address
A place that's worn
A sad pun that reflects a sadder mess
I'll repeat it for those who may not have already guessed
The world's address

Life's parade of fashion just leaves me depressed
Under every garment I can see the world's address
Call the men of science and let them hear this song
Tell them Albert Einstein and Copernicus were wrong

The world's a dress
A place that's worn
A sad pun that reflects a sadder mess
I'll repeat it for those who may not have already guessed
The world's a dress
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#51 Oct 13 2005 at 1:50 PM Rating: Decent
Totem wrote:
Quantum theorists speculate that time may be mallable. Michael Creighton used some of those ideas in his last book, Timeline, where if you picture time as a river, you as an observer are standing on the bank watching it go by. However, if we knew how to do it, moving forward or back along the river would allow you to revisit a section of water/time or speed up time and see the "future" by repositioning yourself farther up the bank.

The sticking point, of course, is that in this analogy, we have no legs and we are morbidly obese from our hands being too busy stuffing Big Macs in our mouths to allow us the luxury of motoring along Time's banks.

Totem


There is a quantum uncertainty between time and energy: the product of the uncertainties is plank's constant. It means you can *borrow* energy from "the vacuum" (e.g. nothing) for small ammounts of time. Often this is confused with time travel. Creighton may be referring to this. The product of time and energy has to be phenominally small, order 10^(-33), so if you wanted, say, 1000 second (about 20 minuets) advanced warning of a horse winning a race, let's say, the energy would be, say from one photon, it's energy would be 10^(-36) joules and thus not sufficient to excite a single electron in an atom, not by a long shot. The passing fly would cause larger pertubations in energy (do the math). It would be undetectable. Further, this is an *uncertainty* relation. It means you cannot know, not that you can send back corrolated information.

More likely, he is referring to some kind of exotic general relativity solution. The math is rather heavy. The kind of math needed is called "differential geometry". After about a year of that, one can begin to understand general relativity, mathematically, so very few people are prepared to discuss GR.

I'm not one of them.
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