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Has existence always existed?

  • 19-08-2009 3:09pm
    #1
    Closed Accounts Posts: 20,759 ✭✭✭✭


    Has existence always existed? I'm pretty sure I discussed this before. I'm curious on your thoughts on it. Has the Universe, or the cycle that makes the Universe always existed? Or is the universe finite in terms of age.

    If it has always existed, or indeed the cycle for which creates it has always existed - Can you grasp or wrap your head around the idea of something being infinite?

    If it has not always existed, then can you grasp non-existence and what created the universe, or even created the material for creating the big bang (that is if you accept the big bang theory).

    Thoughts? This question really boggles me.


«1

Comments

  • Registered Users Posts: 1,800 ✭✭✭bluefinger


    yes

    :D


  • Closed Accounts Posts: 20,759 ✭✭✭✭dlofnep


    Expand on your answer :)


  • Registered Users Posts: 1,800 ✭✭✭bluefinger


    Damn thought i'd get away with that. :D

    14 billion years ago big bang, since then the universe has expanded to become the one we're all living in and sometimes exploring.
    This is a phyiscal explanation of where our universe has come from. As a pragmatist on this issue it's a sufficient explanation for me.

    I'm not sure you can answer the question of did it always exist or not exist as it seems to be one of those questions that we've not evolved the capacity to answer yet.


  • Closed Accounts Posts: 20,759 ✭✭✭✭dlofnep


    bluefinger wrote: »
    14 billion years ago big bang, since then the universe has expanded to become the one we're all living in and sometimes exploring.

    That's fine, but it doesn't answer my question. What existed before the big bang? Was this matter that created it just hanging out for eternity until it decided to eventually explode? Was it put there? Did it suddenly appear from nowhere?


  • Registered Users Posts: 1,800 ✭✭✭bluefinger


    dlofnep wrote: »
    That's fine, but it doesn't answer my question. What existed before the big bang? Was this matter that created it just hanging out for eternity until it decided to eventually explode? Was it put
    there? Did it suddenly appear from nowhere?



    Simple answer is i don't know.
    Fact is no-one does.

    There are theories but as i said previously as a pragmatist I try not to think about it. I did for long enough. It is the question in metaphysics, the Greeks were asking it 2,500 years ago and we're all still asking it now.
    Why is there something rather than nothing? I realise the big bang leads to an infinite regress but there's been some attempts to explain that by means of a 'spacetime singularity'. For what it's worth i think that human beings trying to understand the finite or infinite nature of the universe is akin to a turd trying to comprehend the sewerage system. :)


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  • Closed Accounts Posts: 5,207 ✭✭✭meditraitor


    Existance is only what you are now not what your were when I wrote this, so it does exist but only right now and not before or after....

    In answer to your question no, always cannot relate to existence


  • Registered Users Posts: 15,443 ✭✭✭✭bonkey


    As far as we can tell, time is a property of the universe.

    If that is correct, then there is no "before".


  • Closed Accounts Posts: 20,759 ✭✭✭✭dlofnep


    bonkey wrote: »
    As far as we can tell, time is a property of the universe.

    If that is correct, then there is no "before".

    If there is no before, do you subscribe to there being a start?


  • Registered Users Posts: 2,892 ✭✭✭ChocolateSauce


    As we know it, no. Space itself is expanding. If we go back far enough (the big bang), the entire universe occupied a zero dimensional point. Since time is a property of space, it is meaningless to talk about "before" the big bang.


  • Closed Accounts Posts: 267 ✭✭waitinforatrain


    bluefinger wrote: »
    Damn thought i'd get away with that. :D

    14 billion years ago big bang, since then the universe has expanded to become the one we're all living in and sometimes exploring.
    This is a phyiscal explanation of where our universe has come from. As a pragmatist on this issue it's a sufficient explanation for me.

    Interestingly, you have to wonder if it only happens once. The theory that the universe collapses in on itself and then expands again didn't show much promise, but i've heard it fits with quantum loop gravity theories.

    Hindu mythology has put forward this view since the Puranas (300-500 BC) at the very latest. Their reasoning on this is a generalisation of cycles within cycles, i.e. the day dies to the night every day and is reborn, the moon dies to the sun every month and is reborn, just as we die. Smaller cycles within bigger cycles within bigger cycles. They extrapolate this idea to the a universal scale in their creation myths.

    In one of the creation stories in the Puranas, a diety named Brahma (not sure of the symbolism here) dreams up the universe every time he opens his eyes, and it dies every time he closes his eyes. Each of these cycles is said to last 86,400,000,000 years (a reference to 86,400 seconds in the day, the indians invented the base 10 number system). The story doesn't just give you the idea, but also a way of seeing your life and the world if you have to face the possibility that no matter what you try to do to "fix" the world, it doesn't really matter overall.

    Life is but a dream, nothing really matters. It was a weight off my shoulders anyway!


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  • Closed Accounts Posts: 267 ✭✭waitinforatrain


    bonkey wrote: »
    As far as we can tell, time is a property of the universe.

    If that is correct, then there is no "before".

    I disagree. Change is a property of the universe, time is an illusion caused by your brain, which can be seen as a state machine (if you've done electronics), because it has the ability to remember and recall previous states, "snapshots" if you will.


  • Closed Accounts Posts: 257 ✭✭sells


    We will never find out the answer to that question....and if we do, it doesnt matter because we all will be long dead.


  • Registered Users Posts: 1,149 ✭✭✭Joe1919


    I disagree. Change is a property of the universe, time is an illusion caused by your brain, which can be seen as a state machine (if you've done electronics), because it has the ability to remember and recall previous states, "snapshots" if you will.

    I am totally in agreement with you here. Many philosophers over the years have argued that time is subjective and has no real existence.
    Time ( & space ) is just our way of viewing the world and is not absolute but relative.

    Aristotle (Physics.4.iv.) thought that time was just the way we subjectively measure change.

    Indeed, this view was taken by St. Augustine when he said 'we cannot truly say that time is, unless because it tends not to be'. (Ch.XIV)
    http://www.leaderu.com/cyber/books/augconfessions/bk11.html

    Aquinas argues that causation may take place outside of time and casts doubt on the whole notion of creation (big bang?) taking place in time.
    http://www.fordham.edu/halsall/basis/aquinas-eternity.html
    Indeed elsewhere, Aquinas states that time 'does not have perfect existence outside the soul'. (para 629)
    http://www.op-stjoseph.org/Students/study/thomas/Physics4.htm#23


    Kant also argues that both space and time are 'pure forms of intuition' i.e. They are just ways of seeing the world and both space and time in themselves are nothing.
    http://www.rep.routledge.com/article/DB047SECT5

    Einstein also cast doubt on our Newtonian way of viewing time and argues that time is relative. (Does this mean that time exists at all outside of the subjective and relative view of the observer? )


  • Registered Users Posts: 2,892 ✭✭✭ChocolateSauce


    I disagree. Change is a property of the universe, time is an illusion caused by your brain, which can be seen as a state machine (if you've done electronics), because it has the ability to remember and recall previous states, "snapshots" if you will.

    No, time is a measurable and theoretically manipulatable natural property of the universe.
    Joe wrote:
    I am totally in agreement with you here. Many philosophers over the years have argued that time is subjective and has no real existence.
    Time ( & space ) is just our way of viewing the world and is not absolute but relative.
    It doesn't really matter what philosophers think, science (specifically Einstein) has described time rather well. How we perceive time is another matter, but time exists independently of humans, and to think otherwise is megalomaniacal. Einstein didn't cast doubt on the Newtonian view of time, he demolished it.


  • Registered Users Posts: 1,149 ✭✭✭Joe1919


    No, time is a measurable and theoretically manipulatable natural property of the universe.


    It doesn't really matter what philosophers think, science (specifically Einstein) has described time rather well. How we perceive time is another matter, but time exists independently of humans, and to think otherwise is megalomaniacal. Einstein didn't cast doubt on the Newtonian view of time, he demolished it.

    It very hard to see how time can exist outside of human memory. The 'past' is 'dead and gone' and only exists as a memory or as 'traces of the past' in the world. The future only exists in the intellect as hopes or anticapations and the future has yet to come into existence.

    What exist and is real is the 'change' that we may or may not perceive.
    Our measurement of time are always relative to this 'change' or movement, such as the movement of the sun or earth or pendlum or crystal.
    Its these movements or change that really exist,not the measure, which is time.

    Hence I dont think time travel will ever be possible as there is no 'time' to travel to. i.e. As the past does not exist, there is no actual past to travel to, the time travel machine has no destination that exists.

    There are scientists that hold the view that time does not exist.(presentism). All that exists is the present moment.
    http://www.geocities.com/trolleylauncher/AJPPresentismConsciousnessFinalVersion.htm
    http://books.google.ie/books?id=pTSqg_BHbYoC&pg=PA55&dq=time+presentism+science#v=onepage&q=time%20presentism%20science&f=false

    However, I dont claim to be infallible on this or on any matter and I accept that I may be proved wrong if genuine time travel is proved to be possible.


  • Registered Users Posts: 2,892 ✭✭✭ChocolateSauce


    Joe1919 wrote: »
    It very hard to see how time can exist outside of human memory. The 'past' is 'dead and gone' and only exists as a memory or as 'traces of the past' in the world. The future only exists in the intellect as hopes or anticapations and the future has yet to come into existence.

    What exist and is real is the 'change' that we may or may not perceive.
    Our measurement of time are always relative to this 'change' or movement, such as the movement of the sun or earth or pendlum or crystal.
    Its these movements or change that really exist,not the measure, which is time.

    I think I get what you're saying. I misunderstood; I thought you were trying to argue that time (change) was a human concept only. You're quite right, it is a measurement of the change. :o

    I should have said change happens independently of humans.


  • Closed Accounts Posts: 1,390 ✭✭✭fintonie


    before the big bang,,,, collapsing universe


  • Closed Accounts Posts: 284 ✭✭monellia


    Of course existence has always existed. It’s axiomatic. If it didn’t exist, it wouldn’t be existence ;)


  • Registered Users Posts: 9,800 ✭✭✭take everything


    Joe1919 wrote: »

    Hence I dont think time travel will ever be possible as there is no 'time' to travel to. i.e. As the past does not exist, there is no actual past to travel to, the time travel machine has no destination that exists.

    There are scientists that hold the view that time does not exist.(presentism). All that exists is the present moment.
    http://www.geocities.com/trolleylauncher/AJPPresentismConsciousnessFinalVersion.htm
    http://books.google.ie/books?id=pTSqg_BHbYoC&pg=PA55&dq=time+presentism+science#v=onepage&q=time%20presentism%20science&f=false

    However, I dont claim to be infallible on this or on any matter and I accept that I may be proved wrong if genuine time travel is proved to be possible.

    Isn't the whole relativity of simultaneity (depending on how fast you're going relative to someone else) in special relativity the basis for possible time travel. In other words depending on how you observe things, the moment in time (past, present, future) varies. Admittedly, IIRC, you can only (theoretically) go back, not forward, in time.


  • Registered Users Posts: 2,214 ✭✭✭wylo


    Joe1919 wrote: »
    It very hard to see how time can exist outside of human memory. The 'past' is 'dead and gone' and only exists as a memory or as 'traces of the past' in the world. The future only exists in the intellect as hopes or anticapations and the future has yet to come into existence.

    What exist and is real is the 'change' that we may or may not perceive.
    Our measurement of time are always relative to this 'change' or movement, such as the movement of the sun or earth or pendlum or crystal.
    Its these movements or change that really exist,not the measure, which is time.

    Hence I dont think time travel will ever be possible as there is no 'time' to travel to. i.e. As the past does not exist, there is no actual past to travel to, the time travel machine has no destination that exists.

    There are scientists that hold the view that time does not exist.(presentism). All that exists is the present moment.
    http://www.geocities.com/trolleylauncher/AJPPresentismConsciousnessFinalVersion.htm
    http://books.google.ie/books?id=pTSqg_BHbYoC&pg=PA55&dq=time+presentism+science#v=onepage&q=time%20presentism%20science&f=false

    However, I dont claim to be infallible on this or on any matter and I accept that I may be proved wrong if genuine time travel is proved to be possible.

    completely agree, I think time is a means of measuring a sequence of events, but the only thing that actually exists is now. This was the case "millions of years ago" too. I put that inverted commas because in reality, back then it was just the present moment as well. Its all the one present moment. I think anyway.

    We tend to draw a timeline and treat every bit of it as real as the other, and behave as if we are simply on that existing timeline travelling through it. Whereas I dont think is the case, there is no timeline, there is just now, and there always ever was now (even that last bit doesnt make sense).
    And things are simply changing within this now.

    THAT said, it gets messy for the mind when you think of things like physics, i.e. the faster you travel the slower time goes for you.

    But I dont know if thats the same 'time' we speak of. Im not sure. Maybe its a bit early in the morning for me :)

    The brain will often try and figure things out that are simply unfigure-outable.

    I think to answer the OPs question, yes I believe the answer is.


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  • Registered Users Posts: 2,214 ✭✭✭wylo


    sorry only spotted now that this thread is 2 years old...............or is it?:p


  • Registered Users Posts: 9,800 ✭✭✭take everything


    Isn't the whole relativity of simultaneity (depending on how fast you're going relative to someone else) in special relativity the basis for possible time travel. In other words depending on how you observe things, the moment in time (past, present, future) varies. Admittedly, IIRC, you can only (theoretically) go back, not forward, in time.

    OK i think i got some of this wrong (going back in time would mean faster than light travel so maybe not) and you can go forward in time by whizzing around close to the speed of light (time dilation as observed from earth). But the relativity of simultaneity (things that happen at the same time varies depending on how they're observed) was the main thing i was driving at :p


  • Registered Users Posts: 1,149 ✭✭✭Joe1919


    wylo wrote: »
    ....The brain will often try and figure things out that are simply unfigure-outable....

    I am a bit of a sceptic and its an area of Philosophy I have paid attention to. In eastern philosophy, there is a concept called 'emptiness'. This states that when we look at the concepts that we have of the world e.g. the self, time, space, motion, substance, cause and effect and even emptiness itself, we find that we run into all kinds of paradoxes and hence we have to conclude that these things have no existence in the absolute sense.

    The only truth then is that there is no absolute truth.

    However, we have to live in the world, trains have to run on time, we conventionally have to give ownership of things to people and we must accept certain regularities, such as that we bake bread from flour and not from sand.
    Hence, we must make do and accept that there is some usefulness in these conventional 'truths' and concepts that we have created ourselves, but at the same time being aware that these truths are not ultimate. (e.g that 'time' and the 'self' are ultimately 'empty'). It is made clear that the intention of this doctrine is not to change the world but to change our attitude towards the world.
    (Hence we can continue to wear watches, look for causes, use the word I and mine ect.)

    The postmodernists and Nietzsche come close to this (anti-realist) view. (imo). Nothing has substance. Everything is interdependent and in flux but is is we that conventionally name things for our own use and purpose.(Also a nominalist and pragmatic view). In the Gay Science, Nietzsche states that

    'In order that the concept of substance could originate - which is indispensable for logic although in the strictest sense nothing real corresponds to it - it was likewise necessary that for a long time one did not see nor perceive the changes in things................
    Cause and effect: such a duality probably never exists; in truth we are confronted by a continuum out of which we isolate a couple of pieces, just as we perceive motion only as isolated points and then infer it without ever actually seeing it.' (GS111-2)


  • Registered Users Posts: 1,005 ✭✭✭Enkidu


    Joe1919 wrote: »
    It very hard to see how time can exist outside of human memory. The 'past' is 'dead and gone' and only exists as a memory or as 'traces of the past' in the world.
    Actually, for the reasons take everything mentioned, that's not correct. My past may no longer exist to me, but may be simultaneous with the present of some planet out there in space. In fact any point in the Earth's past is "currently" simultaneous with some extra-galactic observer. In Relativity the past explicitly exists.


  • Registered Users Posts: 1,149 ✭✭✭Joe1919


    Enkidu wrote: »
    In fact any point in the Earth's past is "currently" simultaneous with some extra-galactic observer. In Relativity the past explicitly exists.

    I'm glad you used the word 'observer' because I agree with you that we can observe the past as a trace. But our observations of the past may not be the past itself but perhaps only a trace of the path.
    ( This argument can also be used about the present).

    But of course, one could also put forward an argument that all we observe are effects and that the both past and present have existence in terms of the effects that are present.

    Anyhow, my intention in my reply is to show that there are huge problems with the concept of time and one solution put forward is that time has no objective meaning but is subjective and relative and linked to how the observer views what looks like an objective change or motion.


  • Registered Users Posts: 1,005 ✭✭✭Enkidu


    Joe1919 wrote: »
    I'm glad you used the word 'observer' because I agree with you that we can observe the past as a trace. But our observations of the past may not be the past itself but perhaps only a trace of the path.
    ( This argument can also be used about the present).

    But of course, one could also put forward an argument that all we observe are effects and that the both past and present have existence in terms of the effects that are present.

    Anyhow, my intention in my reply is to show that there are huge problems with the concept of time and one solution put forward is that time has no objective meaning but is subjective and relative and linked to how the observer views what looks like an objective change or motion.
    I don't really see how time can be a subjective thing. First of all, in Special Relativity, the past continues to exist, not as some kind of trace, but it actually exists. My past isn't "a trace" for some observers, it's literally occuring at the same time as them.

    Beyond that, in General Relativity, gravity is literally the warping of time, this isn't something that can occur if time is an illusion.


  • Registered Users Posts: 1,149 ✭✭✭Joe1919


    Enkidu wrote: »
    ............. this isn't something that can occur if time is an illusion.

    It may be that time is not an illusion as such. It may be instead that time is not the fundamental objective thing that we think it is. Aristotle, for example always thought that it was the change ( or Heraclitus the flux) that was more fundamental than time. Time then becomes a sort of 'measure' of that change. Its part of the conceptual framework that we use to measure what we think is reality.

    These type of arguments show the difficulty of seperating the observer from what is been observed. e.g. Schroedinger's Cat


  • Registered Users Posts: 9,800 ✭✭✭take everything


    Enkidu wrote: »
    My past may no longer exist to me, but may be simultaneous with the present of some planet out there in space. In fact any point in the Earth's past is "currently" simultaneous with some extra-galactic observer. In Relativity the past explicitly exists.

    I think this, more than anything else, is the most mind-bending and awe-inspiring concept i've come across in science. Even after reading the stuff behind it, i still have to go back and wonder how it can be. It's fundamentally, to me at least, unintuitive.


  • Registered Users Posts: 3,457 ✭✭✭Morbert


    Joe1919 wrote: »
    It may be that time is not an illusion as such. It may be instead that time is not the fundamental objective thing that we think it is. Aristotle, for example always thought that it was the change ( or Heraclitus the flux) that was more fundamental than time. Time then becomes a sort of 'measure' of that change. Its part of the conceptual framework that we use to measure what we think is reality.

    These type of arguments show the difficulty of seperating the observer from what is been observed. e.g. Schroedinger's Cat

    Unfortunately there's a lot of mysticism behind modern physics. Neither quantum mechanics nor relativity make references to observers, and neither assume conscious observers exist. "Observer" is just a simple means of describing the consequences of these theories. In relativity, an observer can be any valid co-ordinate system. In quantum mechanics, an observer is any classical system that entangles with the quantum system.


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  • Closed Accounts Posts: 1,731 ✭✭✭alex73


    Greeks believed in a Creator not created, a being eternal. Its philosophically impossible for exist to be spontaneous.


This discussion has been closed.
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