Where in the UNIVERSE, if at ALL does the past exist?

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In summary, the past does not exist as a physical reality, only as a memory concept. The relativity of time has been verified by scientists to be a law of nature.
  • #1
kjacobie
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Where in the UNIVERSE, if at ALL does the past exist?
 
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  • #2
We can see into the past with telescopes. Check the Astronoomy boards on this site.
 
  • #3
In memories
 
  • #4
but with a telescope, the past does not actually exist we only see the past only because it takes a (long) time for light to reach us.
 
  • #5
well simple question but a hard answer since we haven't established what the universe is or how it works, and plus if we did we would be out side the box and therefore time in the universe wouldn't apply, and you still really wouldn't have an answer.

oh and i think... garytse86 believes in langoliers ;)
 
  • #6
Backwards, along dimension four. You can't miss it.
 
  • #7
Could it be said that the PAST we hold in OUR minds as a self referential memory concept doesn't actually exist as physical timespace?

ken
 
  • #8
Originally posted by garytse86
but with a telescope, the past does not actually exist we only see the past only because it takes a (long) time for light to reach us.

Actually, since light takes time to reach any distance, even the stuff you see in front of you no longer exists by the time the images get to your conscious mind. You don't need a telescope to see the past, you only need a pair of eyes.

As to the main question, since everything we see has taken time to reach our minds and no longer exists, I think the real issue is, where in the universe does the present exist? It seems to me wherever that is, it can't be observed.
 
  • #9
It takes time for signals in our brain to travel from one part of it to another. The events in your iris are already in the past to your visual cortex, and as is well known, the raising of your attention is in the past by the time you become aware of it. Our consciousness is "smeared" in time.
 
  • #10
the past exists as a probable, potential reality. we view physical reality in a linear sequence so that our brain doesn't short out.

from the spiritual level, we can visit any time probablity thread. i also suspect that we change the past every time we make a major shift in our present belief system. IOW, in order to accept a new idea, we change our past. past data must be changed to support the present.

an aside, how many times have you seen relatives debate what 'really' happened at a family event. they were both there and have opposing memories (mary wore a blue dress, no it was green). yet, each believes the other is crazy. now, when mary is asked, she can say it was red, somehow, both will alter their mental picture of the event and see mary in a red dress. simple, i know. sometimes, the best anserws are the easiest. please consider all the implications, before, getting into bad memories, brain chemistry etc.

all probable pasts and futures exist as potential or probable experiences within infinity. the present is where our consciouness focuses, based on the past and future we hold as currently valid.

this makes sense to me, hope it didn't get lost, in my rambling.

peace,
 
  • #11
Originally posted by olde drunk

Olde Drunk I think you’ve got something there. It seems that in 1915, a guy named Albert Einstein published a description of nature which revealed an extraordinary and seemingly quite unnatural fact: the rate at which time passes is not the same at all places. What?

It seems that changes in gravity and changes in velocity at which one travels actually change the rate at which OUR time flows. At first such an idea appeared to be highly speculative and so this aspect of nature was referred to as the theory of relativity. But it is no longer a theory. During the past decades, the relativity of time has been tested and verified thousands of times. It is now the law of relativity. Einstein had discovered a seemingly overlooked law of nature.

If anything in our life seems constant, certainly it is the flow of time. This perception, or rather this misperception, of time is said to result from the reality that the events with which we are familiar all occur right here on Earth, or if not exactly on Earth, then quite close to Earth. Huge changes in gravity or velocity are thought to be necessary to produce easily measurable changes in the flow of time wherever you happen to be will always appear as normal, just as it does right now. It appears normal because we and our biology are in tune with the local system. Only if we view events across a boundary, looking from one location into another location that has a very different gravity or velocity, can we observe the effect of this extraordinary law of nature which was discovered by our friend Albert Einstein. The relativity of time is encountered only when comparing one system relative to another; hence the name the law of relativity.

The law of relativity tells you and me that the flow of time at any location with a high gravity or a high velocity is actually slower than another location with a lower gravity or a lower velocity. Ergo, this seems to mean that the during the time between the ticks of a clock (and the beats of your heart, and even the time to ripen oranges in the high gravity or high velocity environment is actually longer than the duration between ticks of a clock or beats of our hearts in that low gravity or velocity environment. That is what Mr. Einstein called time dilation.

If at this point, I found myself saying there is no way I can understand how or why gravity can make time slow down, I did not despair because I am in the company of approximately five or six billions of humans who inhabit this Earth.

But can we really slow our own life down to the point that we can live for hundreds of years if we travel fast enough or go to a planet where the gravity is so great that time for us allows us to live for hundreds of years? But I too am rambling on...
 
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  • #12
ah sweet mystery of speed.

if we travel so fast that we leave and return 100 years into the future, did we age 100 years? the mind boggles. RELATIVE to Earth time we did. RELATIVE to our bio-clock we may have only aged 10 years (depending on our speed).

zounds like allis relative!

now, view our system from a non-physical, timeless place, we can (IMHO) visit any moment in time. It maybe like a space-time grid in 3D or 4D(length, with, depth, gravity) or whatever. must be a neat place (place?).

peace,
 
  • #13
Originally posted by olde drunk

ah sweet mystery of speed. if we travel so fast that we leave and return 100 years into the future, did we age 100 years? the mind boggles. RELATIVE to Earth time we did. RELATIVE to our bio-clock we may have only aged 10 years (depending on our speed).

zounds like all is relative!

now, view our system from a non-physical, timeless place, we can (IMHO) visit any moment in time. It maybe like a space-time grid in 3D or 4D(length, with, depth, gravity) or whatever. must be a neat place (place?). peace,


Oh Olde drunk, how I agree with you on this one. Imagine that timeless dimension with no physical properties, or solid reality or the laws (QM or the mathematics used to measure by science today) which we assume to be real. No dimensions, no grids, no borders or anything our senses see in this veil of tears we call life on Earth. An effect that some now know of as a holographic image.

Good to talk to you again...
 

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Related to Where in the UNIVERSE, if at ALL does the past exist?

1. Where in the universe does the concept of past exist?

The concept of past exists throughout the entire universe. Every event, action, and moment that has occurred in the past is a part of the history of the universe. This includes the formation of stars, galaxies, and planets, as well as the evolution of life on Earth. The concept of past is not limited to a specific location in the universe, but rather encompasses the entire history of the universe itself.

2. Does time exist in the same way throughout the universe?

According to the theory of relativity, time is relative and can be perceived differently depending on one's location and movement. Therefore, time may not exist in the same way throughout the universe. However, the concept of past still exists regardless of the perception of time, as it is a record of events that have already occurred.

3. Is it possible to travel to the past?

Although there are theories and concepts about time travel, it is currently not possible to physically travel to the past. The laws of physics, specifically the second law of thermodynamics, suggest that time travel to the past is not possible due to the increase of entropy (disorder) in the universe. However, it is possible to observe and study the past through various scientific methods and technologies.

4. Can we ever truly know the past?

While we can gather information and evidence about the past through scientific research and historical records, it is impossible to fully know and understand every detail and event that has occurred in the past. Our perception and understanding of the past is limited by our current knowledge and technology.

5. Does the past have any impact on the present and future?

Absolutely. The past has a significant impact on the present and future of the universe. The laws of physics and cause-and-effect relationships dictate that events in the past have consequences that continue to shape and influence the present and future. Additionally, our understanding and interpretation of the past can also shape our decisions and actions in the present and future.

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