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Thread: Does the present actually exist?

  1. #31
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    Quote Originally Posted by Dittohead not! View Post
    If that entropy event means that we're half way between past and future, then it follows that time is not infinite.

    So, it's like an SD card with a video recorded on it. The entire video is there all the time, but it is being played from one end to the other. When it gets to the end, the entire video is still there.

    So, time ends, but it doesn't end. It can be started over, started from the middle, stopped again, even edited.
    We don't know that we can "edit" time, yet.

    That would require a deeper understanding of Quantum Mechanics.

    FOR ANYONE WITH NETFLIX WHO IS INTERESTED:

    They have a series of lectures (very little "visual" data) on the weird parts of the the Universe by Deil deGrasse Tyson, that is very good. NOT like a typical documentary, as it is mostly just him speaking (He is a FANTASTIC "teacher...").

    But, he lays things out, very well, and helps explain some of the more "spooky" aspects of the physical universe.

    It is called the Inexplicable Universe:

    Is 'The Inexplicable Universe with Neil deGrasse Tyson' on Netflix in America? - NewOnNetflixUSA
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  2. #32
    Master political analyst Dittohead not!'s Avatar
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    Quote Originally Posted by Devil505 View Post
    When you flip a coin the "present" is the moment the coin is flipped.
    "Flipped" is past tense.

  3. #33
    Council Member Djinn's Avatar
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    Quote Originally Posted by kingrat View Post
    A point is an object that resides in euclidean space. We already know, as far back as democritus, that a physical object cannot be divided indefinitely and that, at some point, you must arrive at the smallest, indivisible part of matter.
    Correct. That's why I said in my original post that I was talking about a "mathematically-perfect sphere." I recognize that such a construct can only exist in the conceptual sense.

    And by the same token, the same disparity between "conceptual time" and "actual time" applies to the OP.

  4. #34
    Veteran Member cpicturetaker12's Avatar
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    Quote Originally Posted by kingrat View Post
    Actually, the smallest interval of time that holds any physical meaning is the planck time (10^-43 of a second).

    But more to the point -- whether something that is inexpressible in a rational way can be said to exist. This begs the question -- is one's understanding of a thing necessary for its existence?

    I don't think so.
    At the risk of sounding GLIB here, isn't TIME just a human contrivance, a tool, a man made measurement device to measure whatever MAN needs to measure? If another meteor hits the earth tomorrow and all of human or even organic life ceases to exist, TIME would cease to be 'measurable', right?

    The fascination with the concept of time by us humans has always seemed irrelevant to me (OR just too deep for my way less than MENSA IQ to get. I'll readily admit it!!!) If we want to go to MARS we better understand how long it would take to get there or to send a satellite to Pluto or beyond. I get all that. I just don't see some cosmic clock out there measuring 'time' without HUMANS to name it, frame it and watch it 'ticking away' or to even GIVE A SHIT!

    And how do you apply nanoseconds, minutes, hours, days years, centuries and millenia to a 13BILLION year old universe?

    (Okay, my brain hurts now, let me click over to the ONION for some entertainment).
    Last edited by cpicturetaker12; 27th February 2017 at 11:51 AM.
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  5. #35
    Council Member Djinn's Avatar
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    Quote Originally Posted by cpicturetaker12 View Post
    At the risk of sounding GLIB here, isn't TIME just a human contrivance, a tool, a man made measurement device to measure whatever MAN needs to measure. If another meteor hits the earth tomorrow and all of human or even organic life ceases to exist, what need for TIME does what remains planet need? Who/what would start 'measuring' time again? And why? ...
    Don't confuse "time" with "measurement of time." While humans are (to the best of our knowledge) the only species to find ways to measure and quantify time, time itself was around long, long before we showed up to measure it.

  6. #36
    Junior Member RedCloud's Avatar
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    Quote Originally Posted by jacobfitcher View Post
    The present is in the past

    The present is in the future.

  7. #37
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    Quote Originally Posted by Djinn View Post
    Don't confuse "time" with "measurement of time." While humans are (to the best of our knowledge) the only species to find ways to measure and quantify time, time itself was around long, long before we showed up to measure it.
    Actually, I'd go one step further with that one. If a tree falls in the forest, but there is no one there to hear it, is there a forest?

  8. #38
    Shiny Purple Member namvet69's Avatar
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    Yeah but can you tell us exactly what time it was when that shit got started? Long time ago just doesn't cut it.

    Quote Originally Posted by Djinn View Post
    Don't confuse "time" with "measurement of time." While humans are (to the best of our knowledge) the only species to find ways to measure and quantify time, time itself was around long, long before we showed up to measure it.

  9. #39
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    Quote Originally Posted by cpicturetaker12 View Post
    At the risk of sounding GLIB here, isn't TIME just a human contrivance, a tool, a man made measurement device to measure whatever MAN needs to measure? If another meteor hits the earth tomorrow and all of human or even organic life ceases to exist, TIME would cease to be 'measurable', right?

    The fascination with the concept of time by us humans has always seemed irrelevant to me (OR just too deep for my way less than MENSA IQ to get. I'll readily admit it!!!) If we want to go to MARS we better understand how long it would take to get there or to send a satellite to Pluto or beyond. I get all that. I just don't see some cosmic clock out there measuring 'time' without HUMANS to name it, frame it and watch it 'ticking away' or to even GIVE A SHIT!

    And how do you apply nanoseconds, minutes, hours, days years, centuries and millenia to a 13BILLION year old universe?

    (Okay, my brain hurts now, let me click over to the ONION for some entertainment).
    You are speculating the nature of objective existence. Does something exist when no one is there to perceive it?

    Apparently, there is such a thing as objective existence. The fact that there are universal (and sometimes dimensionless) constants prove that they do.

  10. #40
    Master political analyst Dittohead not!'s Avatar
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    Quote Originally Posted by kingrat View Post
    You are speculating the nature of objective existence. Does something exist when no one is there to perceive it?

    Apparently, there is such a thing as objective existence. The fact that there are universal (and sometimes dimensionless) constants prove that they do.
    One of those constants is the speed of light.
    But, that too depends on time, doesn't it?

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