How Does Time Really Work?

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  • Опубликовано: 15 май 2024
  • Get a great Displate deal at www.displate.com/hotu or my discount code HOTU for 1-2 = 22% OFF/3+ 33% OFF, available for a limited period of time, excl. Limited Editions and Lumino. Discount applied automatically when using link.
    -----------------------
    Written by Colin Stuart
    Check out his fantastic astronomy newsletter here: colinstuart.substack.com
    Edited and Animated by the legendary Manuel Rubio - subscribe at @ArtandContext
    Narrated by David Kelly
    Thumbnail art by Ettore Mazza: ettore.mazz...
    Sound Editing by Craig Stevenson
    Whale Art by Joseph Ioseliani
    Galaxies, space videos from NASA, ESA and ESO.
    Music from Epidemic Sound, Artlist, Silver Maple And Yehezkel Raz.
    Stock footage from Videoblocks, Artgrid and Shutterstock.
    00:00 Introduction
    04:54 How Soon Is Now?
    18:08 Where Is Now?
    31:16 When Is Now?
    43:25 The Illusion of Now
    #time

Комментарии • 1,4 тыс.

  • @HistoryoftheUniverse
    @HistoryoftheUniverse  Месяц назад +61

    Get a great Displate deal at www.displate.com/hotu or my discount code HOTU for 1-2 = 22% OFF/3+ 33% OFF, available for a limited period of time, excl. Limited Editions and Lumino. Discount applied automatically when using link.

    • @AppleReviews
      @AppleReviews Месяц назад +3

      The now same as zero not exist - just show me zero - yes there is 0.000001 but I will add one zero for endless time so you will never reach zero. The now is... time stop which means not exist.

    • @classicalmechanic8914
      @classicalmechanic8914 Месяц назад +3

      Objective now does not exist only in relativity. Theories like Einstein's can sometimes create an illusion of false reality based on unfalsifiable experiments. Because our knowledge is rooted in these false maps of reality, we cannot comprehend the gap between quantum mechanics and relativity.

    • @weesno
      @weesno Месяц назад +2

      I was going to use the discount code but they currently have a spring sale ending in a couple days that is slightly better 😥

    • @doubtingthomas9246
      @doubtingthomas9246 Месяц назад

      9​@@classicalmechanic8914

    • @priyakulkarni9583
      @priyakulkarni9583 Месяц назад +1

      The problem is how speed is measured. It is measurement problem. 186000 miles/second. This per second/minute/hour/days/weeks/years is the problem. Distance we travel, we can see the for example 100 meter dash run, but TIME! Is so subjective ill defined.
      Until we know what is time, how we define time, we may never know light properties.
      May AGI will guide us soon 😅

  • @Nova2Yung
    @Nova2Yung Месяц назад +237

    Anybody else tuning in to fall asleep? 😅

    • @AnaStelea
      @AnaStelea 14 дней назад +6

      Yes, the narrator's soothing voice is exactly what I want to hear before falling asleep. Great quality video. Love it. ❤❤❤

    • @johnjones4096
      @johnjones4096 14 дней назад +15

      I listen to this kind of content to fall asleep

    • @thesushifiend
      @thesushifiend 13 дней назад +3

      Moi deux….

    • @MyUtubeScott
      @MyUtubeScott 13 дней назад +1

      I started watching/listening several times dut have yet to stay up to the end😮

    • @Zemboy01
      @Zemboy01 12 дней назад +6

      Nope this makes me not get sleep if you understand what he's trying to say

  • @nickinskeep
    @nickinskeep Месяц назад +342

    "human intuition is no yardstick for the way the universe really works" I really wish more people could accept this

    • @cosbro5389
      @cosbro5389 Месяц назад +13

      Or better still , consider it

    • @johnbrooks6243
      @johnbrooks6243 Месяц назад

      I heard something similar
      "Universe has no obligation to be comprehensible to our primate brain evolved for hunting and gathering"

    • @rulesandregulations7192
      @rulesandregulations7192 Месяц назад +11

      Being human is a possibility to beyond but how many willing to break down the boundaries they built themselves.

    • @REDPUMPERNICKEL
      @REDPUMPERNICKEL Месяц назад +7

      We are embedded in a situation of massive cultural inertia
      in which obsolete ideas echo down the generations
      and even though it's been two thousand years
      since humanity became conscious
      the majority still find magic to be
      the more satisfying explanation.

    • @Anton-tf9iw
      @Anton-tf9iw Месяц назад +2

      Human mental-vital intuition that is.

  • @Book-bz8ns
    @Book-bz8ns Месяц назад +202

    What does space taste like?
    Immediately I get the picture of my dog, head out the window, tongue out, just enjoying being alive while I drive.

    • @marknewman2243
      @marknewman2243 Месяц назад +4

      It tastes like chicken. Apparently.

    • @MrScoffins
      @MrScoffins Месяц назад +8

      Dogs are the purest souls and we really don't deserve them 🙏

    • @Tom_Quixote
      @Tom_Quixote Месяц назад

      Disgusting mental image.

    • @marknewman2243
      @marknewman2243 Месяц назад +2

      @@MrScoffins
      Yes. But they don't taste like chicken.

    • @ethyl-bromide
      @ethyl-bromide Месяц назад +7

      Astronauts have said that for a short time after doing a space walk they can smell the suits and apparently its like burned sparklers.

  • @jimc.goodfellas226
    @jimc.goodfellas226 Месяц назад +211

    These videos are probably my most highly anticipated of any on RUclips

    • @burjalmadre
      @burjalmadre Месяц назад

      cool

    • @mementomori29231
      @mementomori29231 Месяц назад +4

      These videos are so high quality, better than professional TV content.

    • @artdonovandesign
      @artdonovandesign Месяц назад

      I know, right?
      I wait all month for a new episode- checking for the "alert" bell every morning. Re- watching so many past episodes and then.... At Last!
      A brand new HoTU. The pure joy of learning.

    • @tanjudereli3357
      @tanjudereli3357 Месяц назад

      It sucks, they bored me to death...

    • @stefanieberg1569
      @stefanieberg1569 Месяц назад

      Agree.

  • @Nebarus
    @Nebarus Месяц назад +528

    Now. You're looking at now, sir. Everything that happens now, is happening now.
    Dark Helmet: What happened to then?
    Colonel Sandurz: We passed then.
    Dark Helmet: When?
    Colonel Sandurz: Just now. We're at now now.
    Dark Helmet: Go back to then.
    Colonel Sandurz: When?
    Dark Helmet: Now.
    Colonel Sandurz: Now?
    Dark Helmet: Now.
    Colonel Sandurz: I can't.
    Dark Helmet: Why?
    Colonel Sandurz: We missed it.
    Dark Helmet: When?
    Colonel Sandurz: Just now.
    Dark Helmet: When will then be now?
    Colonel Sandurz: Soon.
    Dark Helmet: How soon?

    • @RT-qd8yl
      @RT-qd8yl Месяц назад +38

      Spaceballs forever 🙌

    • @AICJacob
      @AICJacob Месяц назад +30

      I immediately thought of this scene when I saw the title!

    • @jefferyhonaker1723
      @jefferyhonaker1723 Месяц назад +12

      Dammit, beat me to it!

    • @jimmurphy6095
      @jimmurphy6095 Месяц назад +22

      You, kind sir.. Win the Internet for today... 🤣🤣🤣🤣

    • @Benji-vr6bx
      @Benji-vr6bx Месяц назад +11

      😂 I haven't seen the film but even that made me crack up.... Must be a good film.

  • @SomeRandomDevOpsGuy
    @SomeRandomDevOpsGuy Месяц назад +63

    YES!!! When I see a new upload from this channel, I get so happy. I used to be happy and excited about life when I was studying physics in college. Taught high school physics after that and had so much fun with my classes. Unfortunately, the reality of low teacher pay, new family on the way, and my other option to make more than double if I work with computers, I went back to my tech job. Now I am almost always depressed, feel like there is no hope and nothing to look forward to in life any more.
    That being said, whenever I see these videos it takes me back to my happy place. Thanks for all the effort you guys put in to put these out. They mean the world to some of us.

    • @MF-kr4hf
      @MF-kr4hf Месяц назад +1

      Damn that's a sad story! Forget what is now; what more can I say? Money and world order really sucks..

    • @judgementhallcollections8168
      @judgementhallcollections8168 Месяц назад +1

      Can you teach at a higher level, like at a bustling university, sometimes part time instruction is needed which can pay well enough to fit in some part time teaching. Even offering tutoring can help fill that desire to teach? Even when I did teach there were special needs students that need additional help and can be very exciting to see how you can reach them and help them along. I am fearful that this next generation is really going to be a struggle with the necessary people interaction skills.

  • @tylerhagaman1890
    @tylerhagaman1890 Месяц назад +15

    This man’s videos kept me going for a while, wasn’t getting out much, wasn’t doing well but these videos ground me….now I’m over a year sober and enjoy these videos more than ever! Thank god for the educational RUclips

    • @ronjon7942
      @ronjon7942 Месяц назад +1

      Thanks for sharing, brother. I am in the exact same space. We will do this. Have to - I don’t have one more in me.
      I’ve been consuming these documentaries to keep my mind occupied at the same time as it is healing, both psychologically and especially physically.

    • @nboss968
      @nboss968 Месяц назад +2

      I'm sober but have lost all faith in people.

  • @adriantcullysover4640
    @adriantcullysover4640 Месяц назад +24

    My past self has been waiting for this video. My future self has rewatched it multiple times. "Now" I finally get my hands on it!!

  • @RiverOfHate21
    @RiverOfHate21 Месяц назад +45

    Still one of the best channels on you tube . Cosmology , physics , geology , mythology , history , and great storytelling all rolled up in one .

  • @crankbait1760
    @crankbait1760 Месяц назад +99

    I am so excited to watch this every night for a month straight

    • @RT-qd8yl
      @RT-qd8yl Месяц назад +8

      Glad I'm not alone

    • @jmulnick
      @jmulnick Месяц назад +4

      Samesies fam 🙋🏻‍♂️

    • @Nova2Yung
      @Nova2Yung Месяц назад +7

      Lmfao literally loading this up now to sleep to

    • @mw-st3qm
      @mw-st3qm Месяц назад +3

      the "universe should not exist" one is the GOAT but i am rly looking forward to this one as well

    • @James-ll3jb
      @James-ll3jb Месяц назад

      Lol. Go have a doobie😅

  • @Condorman1
    @Condorman1 Месяц назад +37

    Holy crap. You took something I thought was obvious and explored phenomena that I had never considered. You did a great job. Thanks.

  • @gotfriendsmsfs
    @gotfriendsmsfs Месяц назад +7

    I'm left with a question. When you die, your brain neuro pathways fire slower as you become brain dead. So, will our perception of time when we die slow down to an infinite perception on the last neuro event? I think I now believe in an infinite after-life, stuck in time, re-living my brain's last chemical burst of nirvana... forever.

    • @KatrinaDancer
      @KatrinaDancer 17 дней назад +2

      I think Calculus solved Xeno's paradox. I do believe in the other side though because from the time I was a child I've been haunted by the supernatural. In fact it's so commonplace to me I actually call it the supernormal.

    • @spaceman081447
      @spaceman081447 13 дней назад

      I sincerely hope that you idea is wrong. It would be horrible to experience one's own death . . . forever.

    • @ElizavetaRoschke
      @ElizavetaRoschke 2 дня назад +1

      Wow...there's a thought! So, basically, you're suggesting in the end we all pass through a kind of an event horizon. Our time slows down, as if we're, well, approaching a black hole.

  • @boyzinthewood1
    @boyzinthewood1 Месяц назад +130

    As a Welsh person, I'll tell you that now is in a minute. As we all say, "I'll be there now in a minute" 👍

    • @inkynebula
      @inkynebula Месяц назад +7

      us greeks say that as well! 😂

    • @boyzinthewood1
      @boyzinthewood1 Месяц назад +2

      @@inkynebula 😄👌

    • @ObiAdeGaming
      @ObiAdeGaming Месяц назад +3

      Ahem....
      As also a fellow Welshman you forgot the butt/mush/brah off the end 😎🤣

    • @quostad
      @quostad Месяц назад +4

      @@inkynebula In Portuguese we use "agorinha" ("little now") and "agora agora" ("now now") for that 😅

    • @ericgraham8150
      @ericgraham8150 Месяц назад +2

      I was just watching a new Michael fassbender movie called trespass against us, it seemed like he was playing sort of a blue-collar Welshman character. he kept calling his friends and children mush? I guess that is a term of endearment can one of you explain that to me just a little bit?

  • @rezadaneshi
    @rezadaneshi Месяц назад +17

    Almost all at once when you think about it, but one frame at a time when documenting it.

  • @Specialeffecks
    @Specialeffecks Месяц назад +2

    The section towards the end would be even better to include how the "Brain makes decisions before you even know it" - published in Nature on April 11, 2008. Brain activity predicts decisions up to 10 seconds before they are consciously made! This directly impacts our sense of having free will - actions that we take are set in our brain - and can be predicted by instruments - before we are aware we “decide” to take that action.

    • @elroyfudbucker6806
      @elroyfudbucker6806 6 дней назад

      That sounds a lot like deja vu.

    • @bmpixy
      @bmpixy 4 часа назад

      Iirc follow-up study showed that this is primarily true for arbitrary decisions where the testee had no strong feelings towards the decision they were making. For less arbitrary decisions, the predective power of those tests faltered significantly.

  • @yushaltdie2920
    @yushaltdie2920 Месяц назад +70

    new sleep video dropped

    • @akutuominen5062
      @akutuominen5062 Месяц назад +11

      I thought I was the only one

    • @backyardpb
      @backyardpb Месяц назад

      @@akutuominen5062 not alone

    • @nboss968
      @nboss968 Месяц назад +1

      Have you guys seen Sam Sulek?

    • @andrewfredrick5238
      @andrewfredrick5238 Месяц назад +3

      Sleep video??? Nah you’re buggin’ I’m awake for any video on this channel lol

    • @stealthymass9392
      @stealthymass9392 Месяц назад +2

      This is so true, I want to watch it but it honestly just puts me to sleep

  • @bigdoggo5827
    @bigdoggo5827 Месяц назад +20

    I had the itch to watch a new history of the universe banger and saw a new video uploaded a minute ago, awesome, thanks for the bangers

  • @mitchbrook4112
    @mitchbrook4112 Месяц назад +10

    so well written and put together, massive props to your channels theyre all so awe inspiring

    • @TheDavidlloydjones
      @TheDavidlloydjones Месяц назад +2

      "as it seems to you or I"???
      Precise -- but different and incorrect -- ages of the Universe.
      A fine meal spoiled by the little bits of dog shit on the plate.
      Somebody did some excellent work on the graphics. It's a pity for them to see their good work ruined by this pretentious gaseous verbiage.

  • @JustMe-ne5dw
    @JustMe-ne5dw Месяц назад +5

    Best practical explanation of a light cone I’ve heard so far. Really helped me better grasp concept

  • @Adiesel79
    @Adiesel79 Месяц назад +7

    That was amazing. NOW I'm going to watch this episode over and over, like all of the others.

  • @arwenbarrett2642
    @arwenbarrett2642 Месяц назад +6

    Found this channel only a few weeks ago. Super stoked for my first release.

  • @mattc825
    @mattc825 Месяц назад +7

    Ooooh a new video on this channel. Can’t WAIT to listen!

  • @Caelia7
    @Caelia7 Месяц назад

    Your videos are amazing. One of my very favourite you tubers. Thank you so much for opening my mind. 😊

  • @TWPO
    @TWPO Месяц назад

    Your videos are my favorite thing on RUclips. Absolute excellence.

  • @ObiAdeGaming
    @ObiAdeGaming Месяц назад +35

    HOLY SHEET WHERES MY WEED?
    Here we go 😎

    • @BalthazarMaignan
      @BalthazarMaignan Месяц назад +1

      Don't smoke 💀

    • @nickinskeep
      @nickinskeep Месяц назад +4

      ​@@BalthazarMaignan loading one up just for you brother

  • @banaanuitdeboom4784
    @banaanuitdeboom4784 Месяц назад +3

    New History of the Universe? I pack a bowl and click.

  • @Wildoutness
    @Wildoutness Месяц назад

    40:26 every time you do a pause like this I have to check and see if the video is over. You got me every time.

  • @redbus36
    @redbus36 Месяц назад

    This video is living proof that the quality of the best youtube videos now far outclasses anything to be found on regular TV channels, which have become even more dire in recent years than before.

  • @Zastrutzki
    @Zastrutzki Месяц назад +5

    Here's one for the algorithm. Thanks for blowing my mind on a regular basis!

  • @ryantodd7456
    @ryantodd7456 Месяц назад +3

    I been waiting for this!!! I can now put this on in the background while I fall off to sleep

  • @Govstuff137
    @Govstuff137 10 дней назад +1

    You did an excellent job. You hit on all the pertinent high points. I wish you were able to delve in Causality a great deal more. It is such an an important part bringing all the other parts together. Very well done. I was happy to recognise all the players accept one.

  • @Govstuff137
    @Govstuff137 10 дней назад

    You touch on Julian Barbour and the Julius point. Some excellent work to understanding of time moving in 2 different directions at once. When you examine the Feynman diagrams and understand that the electron moves forward in time and the positrons move backwards in time it opens a whole new world. This is what I am trying to understand better. Thank you for the great review.

  • @Jack-iu7pw
    @Jack-iu7pw Месяц назад +3

    Uploaded right before bed time. Thank you, History of the Universe, tonight will be a great sleep.

  • @Josh-gz7dq
    @Josh-gz7dq Месяц назад +3

    I've been waiting for this

  • @dmor6696
    @dmor6696 Месяц назад +1

    Excellent writting and delivery
    I stay in awe imagining each little analogy, metaphor and fantasies you people create
    Thank you

  • @Benji-vr6bx
    @Benji-vr6bx Месяц назад +1

    Been waiting ages!! Worth the wait though thanks for all you do.

  • @KurtQuad
    @KurtQuad Месяц назад +7

    I absolutely love the history of the universe and earth you’ve done. Fantastic content as always.

  • @muffinman8744
    @muffinman8744 Месяц назад +4

    I love you guys.I will probably listen to this at least sixty times before you post a new one.

  • @Ultra-Luminary
    @Ultra-Luminary Месяц назад +2

    Recently, I've had dreams with Cosmic Whales...
    And some time ago I did a drawing called : "The Nano Second Before The Awakening"...

  • @zarajones5428
    @zarajones5428 2 дня назад

    This was an incredible video. Thank you

  • @odysseus8944
    @odysseus8944 Месяц назад +11

    If now never ends, it's infinitely long, if now ends, it's like if never happened at all, in both cases it's not measurable

    • @boyzinthewood1
      @boyzinthewood1 Месяц назад +1

      Everything that ends can be measured

    • @odysseus8944
      @odysseus8944 Месяц назад +5

      ​​​​​​@@boyzinthewood1 Then from that point of view, now is the units of time measured from the beginning till the end, what I meant to say is that if now had no observers, it would be like if there isn't now and it never was

    • @boyzinthewood1
      @boyzinthewood1 Месяц назад +1

      @@odysseus8944 fair enough, that does make sense 👍

    • @iunnox666
      @iunnox666 Месяц назад

      It's always now. There is no time that ever existed that wasn't.

    • @boyzinthewood1
      @boyzinthewood1 Месяц назад

      @iunnox666 I'm sorry but nope! Not at all. Although every point in time was once "now" it immediately becomes past tense and can literally no longer be classed as now. You've described a contradiction.

  • @PurnamadaPurnamidam
    @PurnamadaPurnamidam Месяц назад +14

    Some argue that “now” is the only time that truly exists, as the past is gone and the future is not yet here. Others suggest that time is an illusion, and everything is happening simultaneously, with our brains processing events as if they were occurring in a continuous sequence2.

    • @kuyab9122
      @kuyab9122 Месяц назад +1

      One doesn't need to argue as you can conceptualize time in different phenomena. One would be "Clock Time". Another would be "Psychological Time." Add if necessary.

    • @RealDonfromBroward
      @RealDonfromBroward Месяц назад +3

      All simultaneously, in my opinion. Everything that was and will be is all happening at once on the same plane. Our limited human brain sequences the movement of the universe in what we consider "chronological order" but from the beginning to the end is all one....imo

    • @ASMCourtney
      @ASMCourtney Месяц назад

      ​@@RealDonfromBroward It is weird the dilation of time that happens around consciousness or observation, there is nothing else, for 14. Something billion years and then the superposition of all the states of every piece of matter collapses with an observer.
      Just absolutely screeches to a halt so we can all have a snail race of consciousness trying to use the stream of absolutely bonkers information to output something useful to continue existing in what it sees as a valid state of now.
      When every one of us dies our lightcone of possible positions stretches out into infinity, instantly taking the memory of its position as a human of earth into the end of time.

  • @user-jr8xn1ss1r
    @user-jr8xn1ss1r Месяц назад +1

    What a great way to present such a mind-boggling topic!! VERY WELL DONE

  • @user-ly7bt6je1r
    @user-ly7bt6je1r Месяц назад

    I wish all your other video animations were like this. Great Job Mr Manuel

  • @DrDeuteron
    @DrDeuteron Месяц назад +4

    26:53 Never say "move through space", as it implies you can (it doesn't mean anything, nada, zip, nothing) there is no absolute rest frame and your are never moving relative to or through space. This is a great way to trip up students of special realtivity.

    • @fieryeyez6607
      @fieryeyez6607 Месяц назад

      That's very odd. I've always considered one of your points to be absolutely true. There is no "absolute rest frame", I say it differently though "nothing is ever sitting still". I think i like you're way best. Thanks.
      Your other point seems contradictory though since everything is always moving I belive there is only "moving through space" always and for ever. 😂😅😉

    • @phukfone8428
      @phukfone8428 Месяц назад +1

      You don't get invited to a lot of parties, do you?

    • @ronjon7942
      @ronjon7942 Месяц назад +2

      I understand stand your point that movement is relative to some fixed point, but if you’re moving really, really fast, faster than most other points of reference, don’t you accomplish this by ‘moving through space?’

    • @fieryeyez6607
      @fieryeyez6607 Месяц назад

      @ronjon7942 Hi Ron :)
      To your question I say Yes.
      Keeping on mind that no point is fixed (everything is in constant motion), we move through space relative to some other moving point/s not a fixed or stationary point since there is no such thing as a fixed or stationary point. 😃

  • @indranikarmakar1175
    @indranikarmakar1175 Месяц назад +551

    True fans in attendance ❤

  • @allthegs
    @allthegs Месяц назад +1

    Seems like the longest time waiting for this new episode to come out but while watching it time flies by 😀

  • @Leehartzell
    @Leehartzell Месяц назад

    Love these videos thank you ❤

  • @nancyhope2205
    @nancyhope2205 Месяц назад +3

    Another awesome and enlightening video! Thank you !

  • @prasadmore7598
    @prasadmore7598 Месяц назад +4

    This Channel is amazing!!! Thanks a million!

  • @Penny-16
    @Penny-16 Месяц назад +1

    Your 3 channels are some of my favourites. I always watch them more than once. Just fantastic. Idea for a 4th channel: The Entire History of Civilisation. I’d love your take on it. Or will it be part of your humankind vids.
    (Will and Ariel Durants series ‘ The Story of Civilisation’ are my favourite books.)

  • @farzadgarmiani3653
    @farzadgarmiani3653 Месяц назад

    Your videos are like therapy to me 😀 Please keep them at least one hour long.

  • @sylance777
    @sylance777 Месяц назад +6

    "Even RUclips videos is still surging towards them at 300,000 km per second". My first thought was this is a cool thought, but then I realized we're also transmitting TikTok videos to the cosmos at the same rate. We're doomed.

  • @Keithlfpieterse
    @Keithlfpieterse Месяц назад +5

    THANK YOU! Your items ALWAS provide "food for thought" in a world in which the mass media offers us ever-shrinking portions of INFORMATION and mental stimulation simply because it is geared towards "dumbing us down!" Look forward to your next project/item. Keep Well!!

  • @winterx2348
    @winterx2348 Месяц назад +2

    46:37 interesting. i have a background in animation and immediately picked up on the lag, as it's something i've been trained to compensate for. in this situation I would fix it by making the flash happen a fraction of a second before the red square reached the center position. i saw the illusion but still interpreted it correctly based on past experiences, like a baseball player swinging at a ball. i wonder what other illusions we can train ourselves to interpret differently than how our eyes/brain sees them.

    • @nickolaiemde9576
      @nickolaiemde9576 Месяц назад

      I was looking for a comment like this but it’s not as common as I thought it would be. Except I have a background playing sports at a high level, and on top of that did you see it a little behind or perfectly in line with red cube?

    • @winterx2348
      @winterx2348 Месяц назад

      @@nickolaiemde9576 @nickolaiemde9576 I cant say for 100% sure what I actually saw in the moment because the brain likes to fill in our memories with "corrected" versions of events for stuff like this, but I remember seeing it perfectly in line for 1 frame and then slightly behind in the next frame, just enough for me to tell that both squares weren't moving in sync, before it disappeared. I have no idea how many frames the flash was actually on screen, though, and the second frame could have just been my brain lagging to process information and making an afterimage. What did you see?

  • @TazBetTactics
    @TazBetTactics Месяц назад +2

    I think, the real question is, "is there a past or future?". Arguably, the "now" is all that can be said to exist since it is the only thing that can be perceived.
    The past has already happened and is no longer present, and the future is an abstract idea of the progression of now. Neither are tangible, only the "now".

  • @mikesmith1290
    @mikesmith1290 Месяц назад +6

    There’s not a channel out there that brings me this level of excitement when a new video comes out!

    • @williammarkle3299
      @williammarkle3299 Месяц назад

      explore more! many many channels will make you think. Some can even teach.

  • @justsmashing4628
    @justsmashing4628 Месяц назад +44

    I feel guilty watching these amazing videos for Free…

    • @cabanford
      @cabanford Месяц назад +2

      I would pay to have them all available add-free.

    • @cabanford
      @cabanford Месяц назад +2

      (this is the only RUclips channel that clears that bar)

    • @TheGroundedCoffee
      @TheGroundedCoffee Месяц назад

      RUclips premium is a thing.... ​@@cabanford

    • @ToyaF82
      @ToyaF82 Месяц назад +4

      I pay for yt premium...no ads

    • @gamedayelectronics1590
      @gamedayelectronics1590 Месяц назад +4

      @cabanford do you know melodysheep? That channel definitely passes the bar for me too

  • @MassimoBarozzi-xq5em
    @MassimoBarozzi-xq5em Месяц назад +1

    Just fantastic, like all the episodes on the channel. Please keep on existing!

  • @axle.student
    @axle.student 16 дней назад +1

    Thank you. Very well made video :)
    .
    46:55 I find it interesting that I don't see the lag. It appears directly below the red. I am trained to understand this so maybe my brain re-compensates from my education and training.
    >
    Second stairs set works as expected :)

  • @regularly_priced
    @regularly_priced Месяц назад +4

    This makes me wonder how differently aliens would perceive time and how greatly that would interfere with our communication with them. Because most of our methods of communication rely on our perception of time

    • @richardfurness7556
      @richardfurness7556 Месяц назад +1

      That's the plot of the movie Arrival. Well worth a watch if you like that kind of thing.

    • @fieryeyez6607
      @fieryeyez6607 Месяц назад

      Some angels once left their dimension to enter ours, they had no problem dealing with our 3 dimensional worlds 4th dimension. They came to mate with the women of our dimension and did so. IDK If you will consider the forthcoming children aliens or not but they had no issue with time either. This information comes from the book of Genesis with a few refraneses in other books of the Bible.
      As for space aliens originating from within our own dimension I have 0 credible information to offer you my friend 😢
      As for those particular aliens mentioned above they are locked away for now but the children they produced appear to have become what today are known as Demons and very likely present themselves as space aliens among other cleaver cons they do so love to run on us humans. Be careful dealing with any claims of space aliens, They not all as friendly as they may claim to be. 😮

  • @JustMe-ne5dw
    @JustMe-ne5dw Месяц назад +7

    Jumped on 19 seconds into “now.”

  • @spicrown
    @spicrown Месяц назад +2

    I dont look at it as as complicated as it might be.
    Time is just a measurement to see how many “time passed” or will take to get something
    Thats it.
    The “now” is just the “material world” we live in, its the existence.
    Its the same way when if time pauses and come back years later, everything will stay the same, the universe is nice.

  • @Gary-Seven-and-Isis-in-1968
    @Gary-Seven-and-Isis-in-1968 Месяц назад

    That was brilliantly well explained.. Even if NOW isn't what we'd hoped it is.

  • @velkoto1
    @velkoto1 Месяц назад +12

    Another great video by arguably one of the best educational channels on RUclips!

    • @donnyjepp
      @donnyjepp Месяц назад

      Arguably? Care to elaborate 😂😜😉

    • @bjrn-oskarrnning2740
      @bjrn-oskarrnning2740 Месяц назад

      ​@@donnyjeppI mean, there's History of the Earth and History of Mankind, both solid contenders!

  • @zagstheklown187
    @zagstheklown187 Месяц назад +5

    Awesome new vid time !!!!! Love your work.

  • @gerryhouska2859
    @gerryhouska2859 Месяц назад +2

    The example with a mirror reminded me of de Selby's proposition of an infinite number of facing mirrors that lets you see yourself as a newborn.

  • @diomedesabcmnxyz7299
    @diomedesabcmnxyz7299 Месяц назад +2

    ~ The concept of the 'Now' is the perception of a fourth Space-Time dimension.
    The first three, are Past, Present, & Future.
    The 'Now' is essentially the 'observer', who witnesses the other three time dimensions.
    As in Who are you Now & Now who are you?
    ~ Thus, Space-Time dimensions = Past, Present, Future, Now.
    ~ It is totally natural thru the fact that we have four fingers that obviously show that we have evolved this ability thru constant environmental interaction, such as thru self awareness, & survival tactics.
    Which is even further exemplified by all four fingers grasply summed, into all four space-time evolution experiences, by the one big supporting thumb.

    • @LV_223
      @LV_223 Месяц назад +1

      What in the fuck did I just read

    • @ronjon7942
      @ronjon7942 Месяц назад

      @@LV_223yes.

  • @scottydu81
    @scottydu81 Месяц назад +8

    This is why I get flustered in my head when people ask me what time it is. In my head, I’m saying “well, it USED to be 13:45:32;05 but now it isn’t anymore. I can check again for an update though”

    • @schornou7007
      @schornou7007 Месяц назад +2

      You can`t give an answer withouth looking at your Watch therefore the Question "what time it is" already asks for a future time which is the time they hear your answer and because time went on after you looked at your watch and comunicated it, it is in the past. So they ask for a future time which is in the past as soon as you tell them the time, i can see why this makes you flustered. The solution is to allways round up since no one asks about seconds anyway.

  • @softbytesunlimited
    @softbytesunlimited Месяц назад +7

    Always a great content on every episode 👏👏👏

  • @ETR_Unicorn
    @ETR_Unicorn Месяц назад +2

    This is one of the few channels I regularly check for new content.
    My absoloute favourite thing on RUclips.
    And this episode is a mind bender.
    Thank you, History of the Universe.❤

  • @Colesauve
    @Colesauve Месяц назад +1

    Hell yeah I’ve BEEN waiting for a new video to drop

  • @michawojtal3974
    @michawojtal3974 Месяц назад +5

    Your videos are always gorgeous, well written and perfectly narrated. Thank You for making my evening!

  • @marcosdenizatrailhiker2037
    @marcosdenizatrailhiker2037 Месяц назад +14

    Ok, so this is what Morrissey was so stressed out about…

  • @0ptimal
    @0ptimal Месяц назад +1

    Love the topic. One that i come back to often. Great video.

  • @cwebb7178
    @cwebb7178 Месяц назад +2

    Finally. 😂 Appreciate your work. Just wish there could be more. Felt like such a long wait!

  • @SamGiles
    @SamGiles Месяц назад +4

    I'm so immensely grateful for this channel! Thank you, sincerely!

  • @binbots
    @binbots Месяц назад +33

    General relativity and quantum mechanics will never be combined until we realize that they take place at different moments in time. Because causality has a speed limit (c) every point in space where you observe it from will be the closest to the present moment. When we look out into the universe, we see the past which is made of particles (GR). When we try to look at smaller and smaller sizes and distances, we are actually looking closer and closer to the present moment (QM). The wave property of particles appears when we start looking into the future of that particle. It is a probability wave because the future is probabilistic. Wave function collapse is what we perceive as the present moment and is what divides the past from the future. GR is making measurements in the observed past and therefore, predictable. QM is attempting to make measurements of the unobserved future and therefore, unpredictable.

    • @paulmichaelfreedman8334
      @paulmichaelfreedman8334 Месяц назад +6

      Good one. I had figured QM and GR cannot be ocmbined because QM is quantum and gravity is not. Gravity is generated/ Spacetime is curved as a resolutionless spline between quantum units of mass. I also do not believe a theory of QG will ever be formulated.

    • @TheDjcarlos67
      @TheDjcarlos67 Месяц назад +3

      Some very interesting points you made there

    • @paulmichaelfreedman8334
      @paulmichaelfreedman8334 Месяц назад +3

      Additionally, the random nature of quantum fluctuations is what gives us biological organisms our capacity for making choices, or the illusion of free will. Maybe it's better to say that the randomness prevents us in any case from predicting an accurate future. It hides our inescapable fate in a forest of fates.

    • @bowenheinrich
      @bowenheinrich Месяц назад +4

      bro you comment this on every video

    • @binbots
      @binbots Месяц назад +5

      @@bowenheinrich lol yup. And I won’t stop until someone can explain to me why it’s wrong.

  • @YogiMcCaw
    @YogiMcCaw Месяц назад

    This is different from the other HOTU vids, which typically contain a lot of history of cosmology and talk about the issues current in the field. HOTU has been so thorough, and covered so much of current cosmology, that I wondered what you could do next without rehashing old themes again. But you did it.
    I am continually impressed, and never bored, with this channel.

  • @Govstuff137
    @Govstuff137 10 дней назад

    I like the voice it is a lot easier to listen to than others . His pronunciations are easy to digest! Thank you.

  • @BoyKhongklai
    @BoyKhongklai Месяц назад +4

    There it is. I was eagerly waiting and I've postponed my shower session to watch this 😂

  • @themarksmith
    @themarksmith Месяц назад +4

    Probably the best science channel on RUclips... Excellent!

  • @ethanclairville6434
    @ethanclairville6434 Месяц назад +1

    I'm so excited... I almost wanted to leave work early for this.

  • @Bloodknok
    @Bloodknok Месяц назад

    Some mind-blowing stuff there - excellence continues in this series.

  • @McPilch
    @McPilch Месяц назад +3

    To everyone here, I implore you with all my heart to check out RUSH's song, "The Garden."
    "The future disappears into memory, with only a moment between. Forever dwells in that moment. Hope is what remains to be seen."

    • @awillingham
      @awillingham Месяц назад

      I love rush but have never heard that one, what a great song.

    • @Ultra-Luminary
      @Ultra-Luminary Месяц назад

      Thanks! I am doing that now🙏

    • @2msvalkyrie529
      @2msvalkyrie529 Месяц назад

      Wow ! Such profundity ! Basically ; word salad . A series of words which , when analysed , actually turn out to be meaningless drivel.
      Similar to Alan Watts Buddhist shtick ?!

  • @mikey5913
    @mikey5913 Месяц назад +2

    This one was awesome! Like all the rest from this channel.

  • @Lord-V15
    @Lord-V15 Месяц назад

    These scientific essays make me philosophical about my life and the meaning of it all. Keep em coming 🤌

  • @Midatlanticriverrat
    @Midatlanticriverrat Месяц назад +10

    OMG.... OMG!!!! I am hyper ventilating!!!!!!! its here its here!!!!! (quickly goes to get a beverage, turn down the lights, and prepare the viewing area for whats sure to be a transcendental view)

  • @tiborbede8972
    @tiborbede8972 4 дня назад

    I love listening to your videos during hale-bale makin' with my tractor! Wroooom!
    Also thx for the " earthshine" I tough I was a loonatic 😅😅

  • @jeffreymartin8448
    @jeffreymartin8448 Месяц назад +1

    The section on Entropy was deeply satisfying. Thanks HOTU.

  • @mkk3a
    @mkk3a Месяц назад

    45:18 I noticed it so many times! And wondered why is that, and if other people had the same impression.

  • @playgroundchooser
    @playgroundchooser Месяц назад +2

    Well, I didn't think that I was going to have an existential crisis today; but, here we are! 😂😅

  • @abbygirl1972
    @abbygirl1972 Месяц назад +1

    I was just pondering the when and where of now - and here is a video from my fave creator!

  • @sakegroelle3040
    @sakegroelle3040 Месяц назад +2

    love the futurama reference at the start

  • @michaelpetersen3843
    @michaelpetersen3843 Месяц назад

    This channel is simply incredible

  • @MichaelBrown-me3bh
    @MichaelBrown-me3bh Месяц назад +2

    Wow!! I’m so greafull for everything you do on this channel.. thank you all!!!

  • @bradbird100
    @bradbird100 Месяц назад +1

    Relieves my anxiety within moments and let's me sleep. Thank you

  • @stephaneclerc667
    @stephaneclerc667 Месяц назад +1

    A masterpiece, as usual.
    Thanks for that unique quality!
    But I do have a question :
    Did you change the microphone or something?
    Or did you had a cold or something that could alter your such beautiful voice?

  • @rfvtgbzhn
    @rfvtgbzhn Месяц назад +2

    2:03 from what I know pigeons only see in 2D as the fields of vision of their eyes don't overlap. The reason that they flee in the last second is that because of this they don't notice the imminent collision earlier. And you do often see dead pigeons on the road, so they do get run over. However this is usually not on city streets, as in the city cats are slow enough that pigeons can escape even if they react only if the car is at a close distance to them.

    • @jonathanh222
      @jonathanh222 Месяц назад +1

      Not 2D. That would make it impossible to traverse space. Their eyes position means they observe non-intersecting cones of vision, but their vision is good. What you mean is how they achieve depth perception, which is just different from how we do it. You can google this for a more in depth explanation. No creature sees in frames either. This perpetuates the myth that humans can only observe up ta certain amount of frames per second, which is just bollox.
      I'm flabbergasted that a channel of this quality would be so incorrect

    • @rfvtgbzhn
      @rfvtgbzhn Месяц назад +1

      @@jonathanh222 from what I know the cells in the human eye has some kind of refresh rate (this is why you see flicker on CRTs with low refresh rates and wheels sometimes seem to rotate in the opposite direction). However the rate is not the same for everyone and the human brain usually combines a few of these "frames". Thus can explain some optical illusions and also it was shown that if you replace a single frame in movie with a different image, it isn't noticed consciously (but I think there is a controvery if it can have sublimal effects, like more people buying coke if you replace a frame with a picture of a coke in a movie at a theatre). So for short: the human eye has a refresh rate, but the brain doesn't process visual information frame by frame.

    • @jonathanh222
      @jonathanh222 Месяц назад +1

      @@fabio.1 That is question of your brains ability to process images lasting for just milliseconds, but you can easily tell the difference when a monitor delivers say 100, 200, 300 etc frames per second. You will be able to tell the difference. At what point you lose the ability to process / remember any one frame among these is up for debate. Point being, eyes themselves are not limited to fps, that concept is only applicable to measure how fast monitors are, not how we perceive the world.

    • @fabio.1
      @fabio.1 Месяц назад

      @@jonathanh222 👍