• [deleted]

Dear J.C.,

I have to ruefully admit to my having a shape and it is not an impressive one by any means. Reality cannot and does not have a shape. What would the acceptable scientific ascertainment of reality shape be? How could shape be scientifically distinguished from shapeless? How could reality contain shape and shapeless constituencies? While it is true that seemingly separate realistic objects can temporarily be considered to have a definable shape, the totality of reality does not. I do not think that the Universe is understandable. I believe that opposite states attract, similar states abide, and states on the brink of becoming identical -after first exchanging propensities- then merge into a new state. The real Universe can attract abstract ideas about its inception and continuance because of the opposite containment of reality to abstraction. The reality of the Universe has to persist because all of its seeming substantive parts are really similar. Abstract ideas about the Universe have fluctuated over the years from Ptolemy to Newton to Einstein and many others. Essentially, I think all abstraction is unwholesome.

Pentcho,

Once again, thank you for the excellent references. The Magueijo paper ( http://arxiv.org/PS_cache/astro-ph/pdf/0305/0305457v3.pdf ) especially raises a pertinent issue:

". . . The speed of light is a quantity with units (units of speed) and in a world without constants there is no a priori guarantee that the meter sticks are the same at all points and that clocks spread throughout the universe are identical. Clearly if a *dimensionless* constant is observed to vary . . . that fact is unambiguous." (pp. 5-6)

Now, perhaps somewhat ironically, one direct logical outgrowth of my view of the nature of time is that speed is *not* a quantity with units; it is a dimensionless quantity. This conclusion is developed in my essay, Time: Illusion and Reality ( https://sites.google.com/site/smithjcn/time ).

The reasoning runs as follows: 1.) a particular time is identically equivalent to, and is completely defined by, and only by, a particular configuration of the universe; 2.) The configuration of the universe changes if, and only if, some portion of the universe is displaced relative to some other portion; 3.) In order to observe and measure a change in the configuration of the universe (and, hence, a change from one particular time to another) we must observe and measure a displacement of some portion of the universe relative to some other portion. But displacements are measured in units of (what else?) displacement! Time changes (i.e., changes from one particular time to another) equate to displacement changes. Thus, speed may be seen in this light as being a dimensionless quantity.

jcns

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JCN

Specifically:

"A "rate" is merely a way to compare changes. Whether a rate "exists" or not depends on what you mean by "exists," I suppose".

It is not that a rate is a way to compare changes. The point is that it is a rate at which something is physically occurring that is being compared, ie a rate is being compared with another rate. And it is the rate at which alteration occurs (or more precisely, the speed at which one existent state supersedes another). Now, we can compare them directly, without any reference to timing, as such. Hence: X occurred whilst Y occurred. Or, we can introduce a common denominator (a defined rate of change-like crystal oscillation) and compare other rates of change against that. Alteration occurs. We are comparing the rate at which one alteration occurs against another.

Re the second part of the sentence: change does not exist, as such. Existent states exist. There are differences between them. This has two aspects: 1) substance, ie what is different, 2) the rate at which the differences occur when comparing one with another (which may be disparate in substance ie movement and colour, or of the same attribute).

Generally:

While I sympathise with what you are saying, I am not sure that the "operational definition of time" (which is actually timing) is regarded as the "final word". So your argument may be addressing a problem which does not exist. Though there certainly is a problem. A concept, referred to as time, has been reified into reality, ie it is seen as an attribute of any given reality. It is known to revolve around change. Then, additionally, events are timed. This supposed variable (time) within any given reality allegedly accounts for other variances. There is a degree of confusion as to whether these variances (or at least some of them) occur in reality, or the sensing (usually only seeing is referred to) ie quantification thereof.

Now, the point is that 'time' (misconceived or otherwise) does not occur in any given reality. Because it actually corresponds with the rate at which change occurs. That is, it is an attribute of the difference between physically existent states, not of them. Timing involves the comparison, and hence quantification, of these. For example, a quartz watch is comparing crystal oscillations (which is change) with a defined sequence of change (say movement). So, the whole concept of time is incorrect. There is no change occurring within any given physically existent reality, because if that was so, that would comprise more that one existent reality. And there can only be one existent state at a time. The present, incidentally, constitutes that which was existent as at any given point in time.

So it is not really a question of "adopting a broader, more comprehensive, view" and thereby establishing a definition which "complements"... Alteration occurs, that happens at a rate. Quantification of this rate is timing.

[Just to note: SR involves no form of these variables. There is only motion which is effectively 'stillness' (ie uniform rectilinear and non-rotary), and objects are fixed in shape].

Paul

Paul,

'There is no change occurring within any given physically existent reality, because if that was so, that would comprise more that one existent reality. And there can only be one existent state at a time."

This statement beautifully captures the crux of our differing views. It's still not clear to me, however, whether our failure to achieve a meeting of the minds is due to a disconnect over terminology or a disconnect over substance or perhaps some combination of the two.

I'll try one more time here to explain my view. A particular configuration (or "arrangement" or whatever term you'd prefer) of the physically existent reality that we refer to as the universe *defines* a particular time. The configuration of the universe *does* change (this is one of our most primitive empirical observations). Each separate manifestation of that changing configuration is, *by definition,* a separate time. So when you say that "there can only be one existent state at a time" you are really saying (from my perspective) that there can only be one time at a time. Yes, I'm in violent agreement with you, there can only be one time at a time.

The configuration of the universe changes. A previous configuration included dinosaurs roaming our planet. The current configuration does not. These are two different configurations and two different times. There is no risk of there ever being more than one time at a time.

Btw, I've heard rumors that the Society for the Prevention of Cruelty to Mulberry Bushes has begun monitoring our exchanges, so we can't continue going round and round this same poor bush forever. On the other hand, I *would* like to see us achieve a meeting of the minds if such is possible, but I've about exhausted my explanatory arsenal. I don't know how better to explain my view.

jcns

  • [deleted]

Hi JCNS,

Concerning the importance of the notion of simultaneity:

http://www.pitt.edu/~jdnorton/lectures/Tsinghua/Tsinghua.html

John Norton: "The second step is Einstein's discovery of the relativity of simultaneity. This is the breakthrough that showed Einstein how to reconcile his principle of relativity with the constancy of the speed of light."

Clearly by replacing the relativity of simultaneity with absolute simultaneity, a direction in which most of today's theoreticians secretly or openly move, one makes the principle of relativity and the constancy of the speed of light irreconciliable again. Curiously, the principle of relativity then becomes reconciliable with the variation of the speed of light predicted by Newton's emission theory of light (c'=c+v). I am sure some of the rebel theoreticians know that.

Pentcho Valev pvalev@yahoo.com

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JCN

"It's still not clear to me, however, whether our failure...."

No, it is unclear to me as well, but sod the Mulberry Bush and its supporters, you do, as I do, keep trying to reach a point of understood agreement about whether we disagree or not.

Now, in the second sentence second para, why say "defines" a particular time? It is the physically existent state which exists, time is a measurement system. And the definition of what did so can only be established as at any given point in time (a "particular time"). So, yes, we have particular time, particular existent state (incidentally, this is in respect of anything, could be the universe, or a ball, or you). The expression is sort of correct, but the 'wrong' way round. A point in time (ie a unit, as in timing) is, by definition, definable by the quickest at which any given alteration occurs. But, as it is a measuring system, any reference will suffice, just the more frequent and constant the change, the better.

I then worry about the phrase before that: "A particular configuration...of the physically existent reality". There is no 'of something', there is only a physically existent state as at any given point in time. Nothing else. The previous state has been superseded. And if there is any form of change, then it must be a different physically existent state (that is what different is). There can only be one at a time, ie there is no change/alteration within any given reality (which is a shorter word for physically existent state). Our problem is that we are conceptualising reality from a higher level (never quite sure whether less detailed equals higher), so we latch on to certain superficial physical characteristics, and unless they alter, deem it as being the same thing, an 'it', albeit perhaps altering in some respects. This is incorrect. There is, in reality, a sequence of different 'its', they just have similar characteristics at a very superficial level. There is no 'leaf', as such. There is a particular physically existent state, then another, and another, and so on. A property of the 'stuff' (technical word!) which comprises any given state causes alteration. Now, during that sequence of change, 'it', after being a 'bud' resembles what is known as 'leaf'. Eventually, as change continues to occur, having altered in colour, texture, shape, etc, it disconnects from the tree (or Mulberry Bush, even), but we still refer to the subsequent existent states as 'leaf'. Finally it is no longer constituted in a way which gives it the characteristics of 'leaf'. But in physical terms, there never was an 'it' ('leaf'), there was just a sequence of different physically existent states.

Paul

Paul,

I may be hallucinating, but I sense that we're making progress.

"So, yes, we have particular time, particular existent state (incidentally, this is in respect of anything, could be the universe, or a ball, or you)."

We agree here, Paul, and this, for me, is the key to the whole concept. I simply choose to think in terms of the existent state of the most inclusive thing I can imagine, which is the universe, which of course includes balls and us and mulberry bushes and leaves, etc.

"The expression is sort of correct, but the "wrong" way round. A point in time (ie a unit, as in timing) is, by definition, definable by the quickest at which any given alteration occurs."

Curses! Foiled again! The dreaded "but" rears its ugly head. Here, Paul, is one place where our thinking diverges. What you call "a point in time" (which I believe is the same as what I call "a particular time," and what others commonly refer to as a "moment" or as a "moment in time" is not, according to my view, "a unit, as in timing," nor is it, "by definition, definable by the quickest at which any given alteration occurs."

Quickest relative to what, Paul? You've already built a clock into the universe with this statement. Forget clocks for now. Banish clocks from the universe. (A difficult feat, given that virtually any process may be viewed as a clock.) The "quickness" with which any one alteration occurs is only meaningful if we compare it with some other alteration. For convenience, we arbitrarily select one alteration and call it our clock. (A wise - - i.e., optimally useful - - selection of what to use as a clock clearly is not totally arbitrary, but I'm speaking purely theoretically.)

"There is a particular physically existent state, then another, and another, and so on. A property of the "stuff" (technical word!) which comprises any given state causes alteration."

Again, we are in total agreement here. The "property" which causes alteration in any given state is what we humans have, in our infinite wisdom, named the laws of physics or the laws of nature. Some of the best thinkers ever to have lived have taken it as their mission to understand and codify these laws.

"But in physical terms, there never was an "it" ("leaf"), there was just a sequence of different physically existent states."

Here we diverge again. I say that there was indeed a leaf. "Leaf" is the term we use to describe a particular configuration of "stuff." (I tend to use the technical term "bits and pieces" rather than "stuff," but I can live with your terminology.) The configuration of the ensemble of atoms (stuff) which had come together in the form of a leaf subsequently becomes altered (in compliance with the laws of physics) to become an ensemble of stuff we call "mulch." This subsequently will be scattered (again, in compliance with the laws of physics) and some will be taken up by plant roots and eventually become another leaf, which may be eaten by an animal, which is in turn eaten by another animal, and which eventually may become a part of you or me.

jcns

    Hi Steve,

    ". . . a pure harmonization spherization of global systems."

    That sounds like a good thing. We definitely could use some harmonization of global systems (and real harmony) now.

    Glad you found my essay interesting. Thanks for checking it out.

    pax,

    jcns

    Hi Paul,

    You'll find a reply to your post below. Perhaps I failed to do a "reply to this thread." Sorry.

    jcns

    • [deleted]

    JCN

    "...is not, according to my view, "a unit, as in timing," nor is it, "by definition, definable by the quickest at which any given alteration occurs."

    Aha:

    1 If it is not timing then what is it? Timing requires points which represent start and finish and the points in between are units of the measuring system (duration). Now, as in any measuring system, one can choose any common denominator (unit) as the reference, so long as it has the required attributes. It is just that some are better.

    2 Since timing is the comparison of the rate at which any form of change occurs, then that which occurs quickest (whatever form of change it might be-probably movement of elementary particles(?)) when comparing any change one to another, constitutes the unit of timing. One could say this is the 'tick' rate of our reality. It takes that duration for any alteration to occur. Many forms of change take more than one of those 'ticks'. This is why (above 1) any reference is OK in so far as the same 'mistake' is being made every time. And the only real problem is that some degree of differential which occurs is not being identified, but then we are usually conceptualising a sequence of change at a much higher level than that which actually occurs anyway. So, crystal oscillation is a considerably slower form of change compared to elementary particle occupying adjacent spatial position.

    Another way of responding to your "Quickest relative to what", is to point out that everything is a 'clock'. Everything is changing. But the changes can be very slow and not consistent. So the snail crossing my garden does not provide a 'good' clock. There is change (in that physically existent states occur which when compared have differences). These changes can be in respect of all sorts of attributes. [It may well be that change, although manifest in many different ways, is the function of one, or very few, factors, but that is a different issue]. Timing is about comparing the rate at which these disparate alterations occur. Speed is about comparing only a particular form of change. So is colour, texture, noise, heat, etc, etc, etc. Therefore, it is all timing really, ie comparison to establish differences. It is just that timing compares anything and everything, irrespective of what form of change it is.

    We agree on the last point. There is relentless reconfiguration, but for some number of these in a sequence, they have superficial characteristics which mean it can be identified as an 'it' (leaf). The important point to remember is that this is only so in respect of that conceptualisation. In reality, each configuration (physically existent state) was considerably different from the preceding ones.

    Paul

    Hi Joe,

    "Abstract ideas about the Universe have fluctuated over the years from Ptolemy to Newton to Einstein and many others. Essentially, I think all abstraction is unwholesome."

    Whether abstraction is "unwholesome" or not is, I think, in the mind of the beholder. Moreover, it strikes me that abstraction is virtually inevitable. How can thinking beings exist and *not* engage in abstraction? Were it not for abstraction wouldn't we all still be living in caves and hunting with sticks and stones and eating plants and raw meat whenever we were fortunate enough to acquire it? Or perhaps I'm missing your point about the nature of abstraction?

    jcns

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    Dear JCNS,

    I have read your essay and come to understand your point of view in establishing the human experience of time as a valid representation of time and that there is a flow of time. Time like consciousness of a being is both relative and absolute in nature. When we deal with relative time by being in local consciousness of I am a human at this moment, yes then there difinitely is the flow of time from past to present to future. When our consciousness merges with universal conscience (when one attains singularity), then one stops to count the events one is experiencing and the time becomes absolute or infinite, this is when the phenomenon of all realities existing simultaneously at once happens and this is what some scientists are describing with their models. Both aspects of time are equally true, its just our choice to experience one over the other that determines the time at that moment. Duality is as real as singularity and relativity as true as the absolute. I "am" a relative being, i in me is the absolute.

    Please see Conscience is the cosmological constant.

    Love,

    Sridattadev.

    Paul,

    "If it [a point in time] is not timing then what is it?"

    What you call "a point in time" (which is, I believe, the same as what I call "a particular time") is identically equivalent to, and is completely defined by, and only by, a particular configuration of the universe.

    The configuration of the universe changes if, and only if, some portion of the universe is displaced relative to some other portion. In order to observe and measure a change in the configuration of the universe (and, hence, a change from one particular time to another) it is necessary to observe and measure a displacement of some portion of the universe relative to some other portion. But displacements are measured in units of (what else?) displacement; i.e., length. Speed, therefore, is a dimensionless quantity, being a measure of length per length (distance per distance).

    "Now, as in any measuring system, one can choose any common denominator (unit) as the reference, so long as it has the required attributes. It is just that some are better."

    We appear to agree here.

    ". . . everything is a "clock". Everything is changing. But the changes can be very slow and not consistent. So the snail crossing my garden does not provide a "good" clock."

    Again, we appear to agree here. Moreover, I'm quite taken with the idea of your snail clock. It might be quite useful for timing the movement of things such as glaciers, or me prior to my first coffee of the day. I could boast of operating at blinding speed.

    jcns

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    Dear J.C.

    As Oscar Wilde sagely opined: Everything in moderation, including moderation, I am somewhat appalled by the extent and absolute dominance of the amount of abstract ideas that are inflicted upon us every day. When did it become more important to us what we thought compared to that which we actually sensed? Why is not one Reality 101 class taught in any of our schools? Do you not think that it might be best to teach our children how to grow his and her own food, and how to cloth his and herself and how to find and maintain a suitable shelter, rather than inculcating them with the esoteric mysteries of algebra and calculus?

    Hi Joe,

    I hope there might be room in our school curricula for all the things you mentioned, practical as well as more abstract. Always good to keep at least one foot planted firmly on the ground while reaching for the stars. As David Deutsch pointed out in his book 'The Beginning of Infinity,' anything that is not specifically ruled out by the laws of nature is possible, given the right knowledge.

    I can't blame you (or anyone) for being concerned that the growth of scientific knowledge (along with all the power which that entails) often appears to be far outstripping the growth of wisdom and common sense. We know how to nurture and foster the growth of science, but how do we nurture and foster the growth of wisdom and common sense? If you can solve that one there's sure to be a Nobel waiting for you.

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    JCN

    The physically existent state is not 'defining' a point in time. It is in one particular state at that point in time. But you choose the point, and then established what existed at it. So it is timing, as I said.

    "The configuration of the universe changes if, and only if, some portion of the universe is displaced relative to some other portion".

    I do not know what causes alteration. But alteration can involve more than displacement (though you might be using the word displacement as an alternative to alteration, ie not just movement/spatial position?). You are aware of it because when comparing one existent state with another (which is all you have) differences are manifest. You can calibrate these differences by comparing them against each other, or against one chosen common denominator. Timing is just comparing any rate of any change against any other rate of any change. Sheep moves vis a vis bell tolls. Speed, etc is comparing similar types of those changes, ie the relative rates of change in spatial position.

    Re snail clock. Often it is good discipline to pick a ludicrous, but logically correct, example, because it demonstrates what is really going on. Yep the whole world could be run in accord with snail time. Everybody would have a snail on their wrist/mantelpiece/wall, etc, etc. Instead we commonly have quartz oscillations. But this emphasises what timing really is, and what is being measured.

    Paul

    Paul,

    "The physically existent state is not "defining" a point in time. It is in one particular state at that point in time."

    This is a key point upon which we hold differing views, and it is this specific difference, more than any other, which is preventing a better meeting of minds.

    Let me offer a different wording of the idea I'm trying to convey; perhaps it will help. This wording is not mine; it is the wording of Julian Barbour (with whom I am in complete agreement on this point): "The relative configurations, or shapes, of the Universe do not occur at instants of time . . . they are the instants of time."

    Again, the relative configurations of the universe do not occur *at* instants of time . . . they *are* the instants of time. Does that wording help clarify the idea? It is *not* that a particular configuration *occurs simultaneously with* a particular time or that it "coincides with" a particular time. The particular configuration and the particular time are identically equivalent; they are one and the same thing. There is no "time" separate from configurations of the universe.

    This also explains why there is no risk of there ever being more than one time at a time, which was an earlier concern you'd expressed (a concern which I believe was founded on a faulty grasp of the concept). As you correctly pointed out ". . . there can only be one existent state at a time." Yes, exactly, and the reason for this is that the existent state and the time are exactly the same thing. If it was a different existent state it would also be a different time.

    Not only is it not necessary, but, moreover, it is positively confusing and misleading and unhelpful to add on a separate, imaginary "layer" to reality and to give that imaginary layer the name "time."

    jcns

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    JCN

    They occur. So they must do so at a point in time (as in timing). Otherwise, they could not be differentiated from other such occurrences, which did not happen concurrently. Indeed, you are not even able to define what did occur, unless you choose a particular point in time first. What Julian Barbour does not understand, and hence why he is expressing it this way, is time, not timing. Time is non-existent. There is no physically existent entity in reality which corresponds to this concept.

    What exists is a physically existent state, then another, etc. Taking some in a sequence (the criterion for selection is irrelevant, say 'ball', 'Andromeda Galaxy', 'squirrel', etc) then comparison of those states reveals differences with reference to a number of physical attributes (eg colour, shape, texture, spatial position, etc). Comparison of the rate at which those changes occur, ie irrespective of what is involved, is timing. Hence, while Andromeda Galaxy spun X, squirrel eat a nut. There is only timing, which is a measuring system that enables the comparison of disparate rates of change. But change is not physically existent, and anyway, it is concerned with the difference between realities, not of them.

    All this can boil down to, in the sense that you and Julian are saying, is that there is some rate of change which is the quickest, when compared to any other, and if we could identify it and utilise it in timing devices, then we would have a unit for our timing measuring system which enables complete differentiation. As it is, we use occurrences which are not as good (eg crystal oscillation) but still involve a high frequency and constancy. Or put the other way around, there are some rates of change which occur quicker than one oscillation. But, as with all measuring systems, it is only a reference, of itelf it is meaningless.

    "This also explains why there is no risk of there ever being more than one time at a time".

    No it does not. This has nothing to do with timing. It is how existence must occur. It can only be in one physically existent state at a time. Any alteration to that state constitutes a different state.

    Paul

    Paul,

    "They [?] occur. So they [?] must do so at a point in time (as in timing). Otherwise, they could not be differentiated from other such occurrences [?], which did not happen concurrently. Indeed, you are not even able to define what did occur, unless you choose a particular point in time first."

    I'm assuming that the "they" to which you're referring here are physically existent states (?), which, in my lexicon, are the same as particular times.

    "Indeed, you are not even able to define what did occur, unless you choose a particular point in time first."

    What you are saying here, Paul, in my lexicon, is that you cannot describe a particular configuration of the universe without first describing that particular configuration of the universe.

    By way of specific example, let me sketch out, in minimalistic brush strokes, a rough configuration of one small portion of the universe: dinosaurs roaming the planet Earth. I was able to describe this existent state without needing first (as a separate, preliminary step) to "choose a particular point in time." The reason is that this existent state and this particular point in time are one and the same thing. By choosing one you've chosen both.

    Now, what's the risk that one of these dinosaurs might have been injured by walking onto a railroad track and being struck by a steam locomotive? (Could steam locomotives have caused the extinction of dinosaurs?) Not much risk. Why not? Because steam locomotives and dinosaurs have not shared an existent reality (configuration of the universe). This has nothing whatsoever to do with what I believe you call "timing," but it has everything to do with particular times (particular configurations of the universe). There has never been a particular physically existent state, (i.e., a particular configuration of the universe; i.e., a particular time) which included both dinosaurs and steam locomotives.

    "Any alteration to that state constitutes a different state."

    Yes, and it also constitutes a different particular time.

    jcns

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    JCN

    I am not sure why you are putting a question mark after the word they, this refers to your quote from Barbour where they was: "relative configurations, or shapes, of the Universe" . I did not bother to question what this might actually be, because Barbour said it, and such a question is irrelevant. Because what occurs, ie is physically existent, can only occur in one physical state at a time. By definition, this somewhat obvious truism applies to anything, ie a specific elementary particle, a cathedral, the universe, etc.

    ""Indeed, you are not even able to define what did occur, unless you choose a particular point in time first." What you are saying here, Paul"

    Simple, as above. We say, 'there is a cathedral', 'the grass is green', 'there is a fly on the window', etc, etc. Now, what is left off those statement, because life would be impossible, and we are probably incapable of knowing all the information necessary, is a precise moment in time when these alleged occurrences happened, and then a precise definition as to what actually physically constituted the concepts cathedral, grass, green, fly, on, window, as at that chosen point in time. Since at another point in time they were different.

    As I keep on saying, sensory systems evolved to enable survival, not detect the nature of reality. We would need impossibly sized/complex sensory systems, unbelievable technology, and probably an entire lifetime of analysis just trying to establish what, as at any given point in time, constituted that which we labelled cathedral. We are operating at a much higher level of differentiation than that which actually must occur in reality. We are conceptualising it. Our entire way of thinking, our language, etc, etc, has this inbuilt. We do it automatically.

    So the second part of that sentence: "...in my lexicon, is that you cannot describe a particular configuration of the universe without first describing that particular configuration of the universe" is incorrect (this is demonstrated in your dinosaur example). Reality is a sequence of static existent states. There are differences between these. We can quantify the rate at which these alterations occurred using a system known as timing, which involves comparison of the rates at which any given identifiable changes occurred (ie any given state was superseded by the next), irrespective as to what it involved.

    In your dinosaur example, you have described many previously existent states over a considerable duration. You have not defined an actual physically existent state. And in order to do so you would have to select a precise moment n millions of years ago and then define what was physically in existence as at that chosen point in time. Not one in the same era, or more than one but not too many. Because, at any other point in time than the chosen one, there are differences to what is physically existent. So you would have to define something different.

    You are using the concept of 'particular time' (as in timing) to delineate existence. Whereas reality exists in one specific physically existent state at a time, then alterations occur, and we can measure the rate at which this does so by comparing the turnover of various disparate alterations.

    Paul