Do the Past and Future Exist?

Is all that exists just whatever exists right now? Is the past erased and the future a void yet to be filled? Well, the answer lies in between the past and the future - in the elusive, ever-moving eye-blink that we call the present.
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Hosted by Matt O'Dowd
Written by Matt O'Dowd
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  1. INX


    پیش دقیقه

    who just started spinning around their chair halfway through this talk? just me.. fair enough xd 8:40

  2. Matthew Orlando

    Matthew Orlando

    پیش دقیقه


  3. Karan Punjabi

    Karan Punjabi

    پیش 11 دقیقه

    Can’t we relate time to entropy? As entropy increases, time flows in the same direction. Since entropy can never decrease, we cannot go back in time as well.

  4. Challenge- 1M Subscribers for 1 Video

    Challenge- 1M Subscribers for 1 Video

    پیش 13 دقیقه

    Ur cousin sending u a gift frm across the planet which will arrive to u after a week.... So shes in the future n the info what the present is, will be available to u after a week(in ur future) So in ur method of discribing time... ur cousin lives in the future !!

  5. Ozicell


    پیش 45 دقیقه

    That which is - has already been, And what is to be - has already been. Quote: King Solomon. NKJV

  6. Ozicell


    پیش 52 دقیقه

    As Finite as each Moment is - so it is also Infinite! There is NO 'Final Frontier'!

  7. Robert Alston

    Robert Alston

    پیش 54 دقیقه

    All probable past and all probable futures exists simultaneously , all variations of every event are real ,we only experience the byproduct of collective wave collapse as our reality ,it's like choosing one road from multiple roads that are real ,with only that road you choose being part of your particular reality and with all other choices representing alternate but real outcomes that exists simultaneously!" Trippy , I know but it's just my theory!" And to add further craziness ,if we found a way to go back in time we would find ourselves in a parallel reality that diverged the moment we arrived with all future events not subject to the grandfather paradox !"

  8. Ordinary Joe

    Ordinary Joe

    پیش ساعت

    I like beef jerky

  9. forhad karim

    forhad karim

    پیش ساعت

    Present is not present but both future and past. This sentence is both future and fast. Who read it its past who didn't its future.

  10. Gordon .Davis

    Gordon .Davis

    پیش 2 ساعت

    Why must something must be observable to us to be reality? The universe must surely exist outside of our personal 'light cone'. It sounds like he is talking more about perception than reality.

  11. Daniel Whitaker

    Daniel Whitaker

    پیش 2 ساعت

    If the universe is block time, then that couple hundred milisecond state we call "now" would actually be riding the smear of the body on time's wavefront. That gives weight to the conscious as being separate from the mind does it not? The old mind-brain problem?

  12. Clxs DvGhxs

    Clxs DvGhxs

    پیش 3 ساعت

    "Hey vsauce. Michael he-" Oh wait🤦

  13. Gustav Babic

    Gustav Babic

    پیش 3 ساعت

    I think that the path between past and future are like a long groove on a long play vinyl LP. Also, what we perceive as "now" is rather like a diamond stylus needle being dragged along that groove. Once we pass a particular spot in the groove, we can never go back and revisit it, also we have no way of jumping a head to future section of the groove. What is it that is dragging the needle along the groove? Probably the expansion of the universe itself.

  14. Jake Cutter

    Jake Cutter

    پیش 3 ساعت

    Cows are nice, I like purple.

  15. FireFly


    پیش 3 ساعت

    Once I become a 4 or 5th dimensional being I will try my best to come back and leave signs of the truth of this universe.

  16. Mr Yusuf

    Mr Yusuf

    پیش 3 ساعت

    Nasa never points the camera towards the space light glory lol embarrassing lol

  17. Jeffy Bean

    Jeffy Bean

    پیش 3 ساعت

    You have a big head

  18. Roddy Rich

    Roddy Rich

    پیش 4 ساعت

    How many dimensions does Imaginary time have?

  19. Roddy Rich

    Roddy Rich

    پیش 4 ساعت

    Play Universe Sandbox 2 or do another live stream sometime.

  20. Roddy Rich

    Roddy Rich

    پیش 4 ساعت

    This video is blowing up in views . All the other previews videos have an average of 250k views. @PBS Space Time.

  21. AV Gaming

    AV Gaming

    پیش 4 ساعت

    For those Who's English is not good will have difficulty toh understand this all Like me Please add on more language Hindi If possible

  22. Scott Perry

    Scott Perry

    پیش 4 ساعت

    Some rambling here. There is a difference between what is the present universe as it moves through time and what our perception of the present universe is. A lot of what you say in this video is about or perception of time, how that perception can be changed, how others perceive it differently, none of that is what the state of the present universe is at any specific point in time. Now perception is fine, because we see and fee light 8 minutes after it leaves the sun now, it affects us now and not 8 minutes ago, the rain fell seconds ago but it falls on us right now, a sound was created by a train a second ago but gets to us now to warn us of its presence. In fact our brains have evolved to put together the actions of the out side world for us. Without memory for instance we would have no clue if something is moving towards us or away from us, we would not remember where the object was at any time before. There are some people that have a disease that messes up their ability to remember even events in the very close past and they have a lot of trouble perceiving motion. So our perception of now is based on our sensory organs, yet more is going on in our personal now than those senses can perceive and ever keep track of. Now time is a by product of change at a level beyond our perception, at a atomic level, at an energy state level, at the stuff that is the basis of everything level, and its very little state of constant change. I dont think that time is an actual thing in itself, only the existence of a new state. Its hard for me to explain this in a comment section so I apologize if I sounding a little dense. This should not be confused with the rate of change between one item or another, a stone may remain the same as a block of ice melts, that does not mean the ice is moving faster through time, just that some action is happening faster. The core existance of the rock and of the ice/water change at a similar rate. We talk about the half life of a radio active element, in some ways thats closer to what I mean, but think instead about the half life of the stuff that is the basic building block of the universe, and as that decays its change state is experienced as time. If you freeze time as in one of the examples of the apple moving through time, you would see and feel nothing, without change the necessary elements that allow us to feel an objects affect or see it do not exist, light bouncing off an object so we can see it only happens when there is a state of change, Gravity exists only if there is a state of change so it can pull on us. I wonder if even the Universe only exists if there is a state of change? how would you know if the Universe was in complete stasis. I mean it would be there but how would you actually know that, without change it cant interact with anything, or maybe it does not exist at all at that point without that change in state. Furthermore, based on the mass, gravity, or speed of a thing time moves differently. An object closer to the earth will move slower in time, one far up in the sky further from the center of earths mass will move quicker through time. But they are actually moving at the same rate of change in time, but their time fields are different. Time is relative. The same for speed and how it affects time.

  23. nocturnhabeo


    پیش 5 ساعت

    I have been trying to figure out how to understand time as a dimension since it is so often represented spatially in graphs. I have been thinking about it like every x, y, and z coordinate is a complex number with i being time but would that mean there are 3 i's or just 1? So something like my location is [6+3i, 5+3i, 8+4i] or something. Now that I think about it maybe i would instead be a function of your relative closeness to the speed of light... I am taking brilliant's math corses to get ready for the physics one.

  24. k 1

    k 1

    پیش 5 ساعت


  25. Daniel Lehman

    Daniel Lehman

    پیش 5 ساعت

    What if the universe is just a giant particle collider and the present is the collision of the past universe with the future universe creating measurable light. So if you took this literally it would be particles that only move forward in time colliding with particles that only move backwards in time or sub light speed particles and tachyons.

  26. T.O.


    پیش 5 ساعت

    I’m dizzy

  27. 42


    پیش 5 ساعت

    Relativity only works when you assume the observer is not omnipotent. An omnipotent observer would see a deterministic universe through past, present, and future.

  28. Alcaeus89


    پیش 5 ساعت

    Time only ever moves forward. Is there a present? Do you STEM majors understand why we need philosophy, now? The world isn't just facts and measurements. It's combined with interpretation and judgments

    • Alcaeus89


      پیش 5 ساعت

      5:28 This idea, like all scientific ones, are held together by logic. You know where logic comes from? A philosopher named Socrates. You're welcome. Enjoy your Principia. I'll be reading my new translation of the Republic

  29. stefanbanev


    پیش 6 ساعت

    >"Do the Past and Future Exist?" Multiple Pasts & multiple Futures do exist; in fact, all versions of Pasts and all versions of Futures do exist at once...

  30. Cara Couch

    Cara Couch

    پیش 6 ساعت

    The way I understood relativity is if that time is relative it objectively cannot exist and that our brains cannot process the information in a manner that is outside of the dimension in which we inhabit (without math and things). I think that is what you may have confirmed but one can never just assume. ^ _ ^

  31. Eluem


    پیش 6 ساعت

    I'm still very confused about what was wrong with the notion that only "now" exists. It doesn't need to be a consistent "now" for all observers. Each observer can be having their own subjective experience based on their position, velocity, mass, and other surroundings that might affect how they observe the objects around them as well as altering the actual rate of causality (time dilation). I don't see why that doesn't work just fine without any over complication of the situation. It seems like it's just difficult for us to conceptualize that the universe doesn't have a dimension that remembers the past nor predicts the future, because we DO those things.. however, we do those things using structures in our mind made of matter in 3d space. I don't see any reason to believe that the universe has an actual time dimension (other than the one that is melded into space which alters the rate of causality [aka "time" dilation]). Edit: After skimming through the areas where you touch upon presentism, I don't actually see you explain why there's any issue with it.. other than saying that it's impossible to define what the "present" is. However, I don't really get why that's an issue. We can't define an agreed upon "now" for all observers, because observers experience different events and information from different perspectives and even at different rates, depending on how dilated the rate of causality is around them. I think the issue is that we're trying to define the perception of time as relative to an observer, like we would with objects they observe in space. However, experiencing different information about different objects from different vantage points is a consequence of being in different relative positions and velocities. It's nothing to do with time itself being relative to anything. In fact, it seems to me that time existing at all actually breaks the natural relative nature of the universe. The velocity and position of objects only matters in relation to other objects. There is no fundamental universe aether to move relative to. Why should events be any different? Events only matter when objects are near other objects to interact with. However, time allows an object to be meaningfully relative to itself... or to a "time aether". There doesn't seem to be a need for an actual past or future to be a real meaningful thing in order for our universe to function. So, I don't see why we should lean towards believing past and future exist.

  32. BRUCE Phillip

    BRUCE Phillip

    پیش 7 ساعت

    The past and the future was here a moment ago. But that was then, and this is now.

  33. Patrick H

    Patrick H

    پیش 7 ساعت

    Venus and earth? That implies the asteroids and how we can potentially find the building blocks of likeness in rocks out there in near space. If life is here, it should be near.

  34. Boris


    پیش 8 ساعت

    No amount of marketing is getting this one across the table

  35. zachariah adams

    zachariah adams

    پیش 9 ساعت

    I haven't contributed to patreon only because nobody's observed me doing it yet. So please, observer me with some disposable income.

  36. Peter D Morrison

    Peter D Morrison

    پیش 9 ساعت

    You make the classic mistake, which Schrödinger detested, of assuming that quantum theory can be extended to apply to the macroscopic, and relativistic universe.

  37. sausageslaps


    پیش 10 ساعت

    there is no present, or now for that matter as time never pauses so there is only past and future

  38. Heavy Joe Chipman

    Heavy Joe Chipman

    پیش 10 ساعت

    Its as if one's personal flow of time throughout the block is constantly made from complete awareness of the previous moments that led to this one being currently experienced, and the direct, foreseeable moments out beyond this current moment. ☺👍

  39. Ray O

    Ray O

    پیش 10 ساعت

    Help! I don’t get it. How can one define the existence of the present based on their perception / observation? Why does something need to be observed to qualify as being in existence? Such qualifications on existence limit our understanding of time to the speed limit of light... e.g. the transfer of information. But the existence of each point in space should not be defined by its ability to successfully broadcast confirmation of itself in a ‘timely’ manner.

  40. Right Wing Safety Squad

    Right Wing Safety Squad

    پیش 10 ساعت

    Mind blow. Have you ever tried DMT? Jamie, pull up the video of the gorilla fighting a toddler.

  41. Jeremy Weems

    Jeremy Weems

    پیش 10 ساعت

    I like turtles.

  42. WhatTha What

    WhatTha What

    پیش 10 ساعت

    This sounds like render distance... Simulation?

  43. Kraflyn


    پیش 11 ساعت

    why do you call the fraud "the smartest guy in universe"?

  44. Son&PopCo-OP


    پیش 12 ساعت

    No. No they do not. I just saved you 16 minutes. Go watch something useful instead.

  45. jama warsame

    jama warsame

    پیش 12 ساعت

    A.G.I will be man's last inventions

  46. Lisen TuMei

    Lisen TuMei

    پیش 12 ساعت

    Thank you for the extravagant explanation of Perception and Imaginary Theory. Good video though.

  47. Mithaq


    پیش 13 ساعت

    I read it "Does the Fast ans Furious exist" for some reason lol

  48. oren shved

    oren shved

    پیش 14 ساعت

    Matt, you look either super drunk (which ozzies don't get) or super sick in this video... so... get well, man! :)



    پیش 14 ساعت

    Too complicated. Simple Version : "Yesterday is history, tomorrow is mystery, today is a gift, thats why its called a present" - Master Oogway

  50. Phil Robinson

    Phil Robinson

    پیش 14 ساعت

    WTF is he talking about? I haven't had enough drugs for any of this to make sense. And I have an exceptional IQ. The answer is no. Easy. No!!

  51. Bo Huggabee

    Bo Huggabee

    پیش 14 ساعت

    interesting question. you'd percieve time as some interdimensional existence that overlays one another, past present and future all in one space. hmm.

  52. Johnny O

    Johnny O

    پیش 14 ساعت


  53. Sharkie


    پیش 14 ساعت

    I was literally thinking about this exact thing last week and now it’s in my recommended...

  54. Buddy And The Blueprints

    Buddy And The Blueprints

    پیش 14 ساعت

    I will be honest. I can not follow this. I am stupid. :(

  55. Shaheen Ghiassy

    Shaheen Ghiassy

    پیش 15 ساعت

    If I moved forward would my cosmic event horizon actually change? 🤔 As I move forward, time for me slows down to compensate, so my overall spacetime stays the same - thus my cosmic event horizon stays the same right??? Not sure, I get confused haha - but seems odd that I can change my cosmic event horizon

  56. Joe Moore

    Joe Moore

    پیش 15 ساعت

    Am I the only one who paused the video a ton to try to understand what he’s saying?😂

  57. Duncan


    پیش 15 ساعت

    Funfact about predetermination: It's real. Another fun fact: It will have zero effect on perception of free will. Humans do not have the unmodified capabilities to know what will happen more then a few second in the future, and even then their accuracy is terrible. This is the absolute universally strongest example of 'ignorance is bliss'. We have free will due to our inability to know what will happen next or to connect all the dots that are inexorably converging into inevitability. Even your denial/acceptance of it all is part of it; you were built this way from before your birth and molded by each second of your environment, even if that knowledge leads you itself to another environment. Let that sink in, and then slowly realize it doesn't matter. Perception of free will is as good as the real thing because we would not know either way.

  58. CodeName PizzaJr

    CodeName PizzaJr

    پیش 15 ساعت

    So has anyone ever figured out how dejavu works ? If so let me know

  59. Duncan


    پیش 15 ساعت

    Before I watch Ill answer what I believe. Yes. Yes they exist in the same way the end of a long rope exists even when you cannot see the end of the rope, or even a few feet from where you are on that rope. You're only allowed to travel a certain speed along the rope and it gradually comes into view. This is only true if predetermination exists. I personally believe it does, and human science is slowly coming to this as a fact as we sort through reasons why it doesn't exist (not being able to see or understand something, does not prove that it doesn't exist, it only proves that it not knowable to us in either those approaches, or possibly any approach under the laws of physics. Indeed, existence should be impossible, yet here we are, so there was a catalyst and infinity has a beginning) Everything in existence has a infinitely precise story behind it that reaches back to the beginning of all creation.

  60. Robert Fields

    Robert Fields

    پیش 15 ساعت

    So if all causality happens at a speed and not instantly, are we only able to perceive the past? Since you and I cannot occupy the same point in spacetime, even if we’re in the same room, do you only exist in my past and I in yours?

  61. jmb


    پیش 15 ساعت

    everything is predetermined. there is no free will. if you think you couldve not procrastinate, dont bother. you were meant to procrastinate or get fat, be an ass.

  62. spine spindle

    spine spindle

    پیش 15 ساعت

    Jesus this channel can sometimes talk alot of baloney

  63. M Ryan

    M Ryan

    پیش 16 ساعت

    So, Dr. Who was right when he said that time was "A big ball of wibbly wobbly, timey wimey stuff." 🤔

  64. Rick Oshay

    Rick Oshay

    پیش 16 ساعت

    Presently, I'm confused.

  65. eric pohlman

    eric pohlman

    پیش 16 ساعت

    it is not entirely accurate to say, "Nothing, not even information can travel faster than light." the speed of light is simply a mathematical constant of which to judge other celestial objects. Gravity reacts quicker than light. The universe expanded faster than light..................blah.

  66. bizarre life

    bizarre life

    پیش 16 ساعت

    Time is illusion of observers.

  67. Trashman


    پیش 16 ساعت

    While this is all interesting, I think that while your 'getting off' on seeing the planet from different directions and points of view and stating: "Time is different!" In fact, everyone seeing the planet is seeing the photons NOW, regardless of where their NOW is... For all observers, the planet has moved on, isn't where they are seeing it - they are seeing the photons reflected by the planet, not the planet itself. It's the same as the black hole problem I have: If black holes are infinitely dense and time stops at them - how can we still see them? Wouldn't they simply 'wink' out of existence? Stuck somewhere in the past if time has stopped for them? I just feel there's something else going on - we just haven't noticed it yet, haven't quantified it. Just as because a photon travels at the speed of light it is infinitely dense - which means it can't go anywhere or forms a black hole... but somehow manages to travel to the end of the universe instantly because time doesn't exist for it, yet it takes 8 minutes for light to get from the sun to us... I understand how 'not getting it' means I do get quantum physics? But I just feel, like many others, that there's just other 'stuff' to the universe we just haven't got a clue how to discover, never mind discover - and with us only knowing what 6ish percent of the universe actually is? I feel quietly confident in my belief. After all, if we discover another 6ish percent of the universe? It could be just as complex as the known 6ish percent - and we've still got 88ish percent to go...

  68. Anik Samiur Rahman

    Anik Samiur Rahman

    پیش 16 ساعت

    Hi Professor Matt, I have a childish question. QED describes particles as an excitation of the respective field. But what is a field? We say the field is the property of space - like say the presence of a magnet modifies its surrounding space in a way that pushes or pulls other magnets. But in this description, a field just becomes a mathematical quark - A few scribbles on some piece of paper. Definitely real particles can't be the vibration of a few scribbles made of ink. Then what is a field? If it's actually a real entity then what kind of entity is that?

  69. Joseph K

    Joseph K

    پیش 17 ساعت

    So I was right to be the only one who raised their hand when a substitute teacher asked the class as to who believes in fate, back in 4th standard. The future or to be precise ...all my possible futures already exists. I can shift my movement and choose any particular one to be my experience. Haha.

  70. Ross


    پیش 17 ساعت

    I laughed out loud at the end. I already had the notion that maybe the observation of space-time gave us a single slice. And when i say observable I give that job to the universe and everything in it. So when Matt mentioned the quantum physics gives us a possible multiversal future then that gives us our singular past. I know this is wrong, but I love discovering the next steps as educators like Matt, Neil, Brian, and many more give us amatuer scientist more digestible info.

  71. And L

    And L

    پیش 17 ساعت

    Man this stuff is mind blowing. No amount of fictions can come close to how weird the universe really is.

  72. eliptats


    پیش 17 ساعت

    I love watching this channel late at night while playing video games, so comfy

  73. Reece Milan

    Reece Milan

    پیش 17 ساعت

    I mean we see the past in stars

  74. seeni gzty

    seeni gzty

    پیش 18 ساعت

    Me: I should really sleep Also me at 4 AM: Do the past and future exist?

  75. Oliver van der Togt

    Oliver van der Togt

    پیش 18 ساعت

    I don't see why it is a problem that for some processes time passes slower than others.

  76. Steve Martin

    Steve Martin

    پیش 18 ساعت

    That metaphor of 'time as a vinyl record' is brilliant. Sounds very similar to how I try to understand the Australian aboriginal concept of 'dream time', or the cyclical versions of time by some religious traditions. After that, my beer started kicking in, and I retreated into the present. Upvoted, but will continue looking for a metaphor a 6 year old could understand. 🤣

  77. cj nav

    cj nav

    پیش 18 ساعت

    Do the Past and Future Exist? Only now with the sun and moon counting "time" for us. But in eternity - everything just "is".... as God just "is". Hence Jesus giving the answer of who He is: I AM (I AM = Eternal existance) Soon, we will step out of time and into what already is: ETERNITY Where will you spend Eternity? Accept Jesus as the death sacrafice for your evil deeds in this lifetime, to spend Eternity in His presense - ON THIS EARTH after He re-creates 😁

    • seeni gzty

      seeni gzty

      پیش 18 ساعت

      events kind of ceases to be a thing in a way, it's not incoherent to imagine it. You're free to imagine all kinds of things that make no sense whatsoever out of the "illusory" chain

  78. Alexander Rossi

    Alexander Rossi

    پیش 18 ساعت

    This turned me brains to non-temporal goo

  79. stoNkez


    پیش 18 ساعت

    In case anyone is in any doubt as to the answer to the question posed as the title of this upload, the answer was figured out several centuries ago by eastern gurus, and that is that the answer is a resounding negative. They figured it out and tried to raise awareness of the reasonably obvious fact about the nature of existence and here we are all this time later & people still waste their time discussing it. 😩

  80. Miah Minhazuddin

    Miah Minhazuddin

    پیش 19 ساعت

    I liked this video. According to Islam, time is also a creation. there is a section named "The journey of al-Isra' and al-Mi'raj" if anyone is interested can be looked into it. it will open our minds regarding space even more.

  81. Infinite Monkey

    Infinite Monkey

    پیش 19 ساعت

    I lol'd at the Nokia 3310 predating Galileo XD

  82. ReverendRV


    پیش 19 ساعت

    The Past exists in the Present; the light from a distant Star is from our Past, not from our Present. The Star actually exists in the Future, possibly millions of years older than it looks to us; and it will have to wait millions of years in the Future to see the light of our day. The Past, the Present and the Future exist at the same Space-Time...

  83. Aaron Phillips

    Aaron Phillips

    پیش 19 ساعت

    Does this explain why if a traveler were to travel at near speed of light around a supermassive black hole for about 10 years they're relative time would put them well into the future when they come back home? Because their light cone had them aligned with observer's light cone in the far future?

  84. James Brooks

    James Brooks

    پیش 20 ساعت

    Time is a human invention. Just our way of using one natural process, say the oscillations of Cesium atoms, to measure another natural process, say the orbit of the moon around the Earth. We might posit a hypothetical 'instant' where everything, everywhere is at a particular point in their progression through entropy. It's just that it's fiendishly difficult to model because of the speed of light and the expansion of the universe.

  85. Mash Rien

    Mash Rien

    پیش 20 ساعت

    One big problem I have with all time existing and we just experience individual slices, moving from one 'frame' to the next, is that implies some minimum 'planck time'.. Or in other words, that the universe has an FPS, or "frame time" If planck time exists, are we really saying the photon doesn't move between those two planck points, it teleports?- Meaning *_if_* we could ever see a shorter time scale, between departure and arrival, the photon doesn't exist? And when does it teleport?.. At the end of the current planck time, or the beginning of the next--the tick, or the tock, if you will.

  86. Ernie Franks

    Ernie Franks

    پیش 21 ساعت

    It is even in the mechanics of the Multiverse! Our Verse, the Universe. Being the first of a Multiverse! In the world of numbers! A Universe of numbers! Like reading different books, of a Library! All different pages, of different books and types of books! The Genre's of books! Ours is just the creation of stories! Aliens, God, Mythical, everything! Like Scifi, Religion, Fantasy and everything in the genre's of books!

  87. Star Light

    Star Light

    پیش 21 ساعت

    My light clone is presently unable to grasp this concept. Will need to watch this one more time. As my past self is catching up to my future self. Thank you the visuals are extremely helpful.

  88. Paul G Rudenberg

    Paul G Rudenberg

    پیش 21 ساعت

    How did you talk about spacetime and lightcones without mentioning Minkowski?

  89. Ernie Franks

    Ernie Franks

    پیش 21 ساعت

    It's like the pages of a book! Just because you are reading the introduction, of a book . Doesn't mean the last pages, of the book. Is not playing out! All is going at the same time, just our past, present and future. Are on a different page!

  90. Kurt Fitzner

    Kurt Fitzner

    پیش 22 ساعت

    Delay between an action and that actions causality wave reaching me is just causal latency. Causal latency is not evidence for the existence of a separate past/present/future any more than audio latency from the speed of sound is. You can do tricks with sound that play with the order a sound is heard between multiple objects moving at different speeds relative to each other that mimic causality tricks where you can't agree the order actions occur in. In sound's case , the existence of a side-channel (light) that is a much faster conveyor of information makes it clear which "actually" happen first. With light this isn't the case, there is no faster channel, the speed of light (time) is all we have at the moment, but that doesn't mean that causal delays are implying weirdness with time or implying the existence of a past or future any more than our existence implies the universe is trying to create a way to observe itself. Both are logical fallacies from taking thought experiments out of context and way beyond left field.

  91. Petitio Principii

    Petitio Principii

    پیش 22 ساعت

    To say that the past is "erased" to describe "presentism" is kind really of implying an "eternalist background" POV where there's really this eternal "plane" that "erases" somehow the past, or though with the present "travels," with a lot of empty "time space" behind and ahead, versus just the "now"/change only existing, without this kind of "substrate" inferred from our "mapping" of events. Past was never "erased" literally like in "Langoliers," or as in a tape that's erased just after it goes past the VCR head. You can't go back to "empty" space with nothing or ahead to a future where "nothing" reached yet. To "go back in time" would literally imply in moving everything back to the states they were before, and it wouldn't even be 100% literal unless you'd really cheat on entropy and whatnot, somehow.

  92. Petitio Principii

    Petitio Principii

    پیش 23 ساعت

    These notions of time being an "illusion" of a determined/static extant set of events seem to implicitly assume that there's some sort of immaterial soul that "flows" through the "block/tape universe" having this magical immaterial illusion. Or who watches a projection of the "illusion" movie, again, implying a real, in a non-illusory time, and a bunch of other weird stuff. Not to mention the probably unfalsifiable "present"/eternal existence of all past and future from determinism alone. But I think that since causation as a chain of events kind of ceases to be a thing in a way, it's not incoherent to imagine it. You're free to imagine all kinds of things that make no sense whatsoever out of the "illusory" chain of temporal causation, maybe we just watch the movie-illusion recorded by a god movie-maker or something, there's no point in trying to even prove it as it would be way beyond anything we could reach with scientific instruments or even reasoning.

  93. Bob Sapsford

    Bob Sapsford

    پیش 23 ساعت

    Distorted logic can prove anything is possible, its just that the results are distorted. Example, what has the speed of light have to do with the present, wherever anything is happening in the universe that is what is happening now, the fact that we dont see it for maybe millions of years doesn't mean it happened at a different time.

  94. Petitio Principii

    Petitio Principii

    پیش 23 ساعت

    This "playing of time in sequence" of the block time kind of implies "another time," a real time, that "plays" the events that are predetermined/"recorded."

  95. GG Fuego

    GG Fuego

    پیش 23 ساعت

    Aye guess what? Time only exists in your head.

  96. GG Fuego

    GG Fuego

    پیش 23 ساعت

    Is this f'ing cat alive or dead? I need to eat it's brains.

  97. Laser Hobbyist

    Laser Hobbyist

    پیش 23 ساعت

    Nope, not watching this guy, condescending boop.

  98. Optima-Nova


    پیش روز

    Now? As in right meow? Meow or never? Is it meow now?

  99. Simon Bean

    Simon Bean

    پیش روز

    Depends when you're looking from

  100. Ken Clinton

    Ken Clinton

    پیش روز

    2015 Newton portal confirmed.