Misconceptions About the Universe

2014 ж. 26 Мам.
7 446 726 Рет қаралды

Can we see things travelling faster than light?
Check out Audible: bit.ly/AudibleVe
Music by Amarante "One Last Thing" bit.ly/VeAmarante
Awesome animations by / minutephysics
Thanks to Prof. Geraint Lewis for input on earlier drafts of this video.
The expanding universe is a complicated place. During inflation the universe expanded faster than light, but that's something that actually happens all the time, it's happening right now. This doesn't violate Einstein's theory of relativity since nothing is moving through space faster than light, it's just that space itself is expanding such that far away objects are receding rapidly from each other. Common sense would dictate that objects moving away from us faster than light should be invisible, but they aren't. This is because light can travel from regions of space which are superluminal relative to us into regions that are subluminal. So our observable universe is bigger than our Hubble sphere - it's limited by the particle horizon, the distance light could travel to us since the beginning of time as we know it.

Пікірлер
  • Some people have been sending wikipedia references saying parts of this video are wrong, but I think it's wikipedia with the misconceptions. For further reference check out this paper: journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8838887

    @veritasium@veritasium9 жыл бұрын
    • Best video I've seen in a while!

      @jimo1150@jimo11509 жыл бұрын
    • What a interesting video!!! :)

      @maynorarturovidesvasquez@maynorarturovidesvasquez9 жыл бұрын
    • Always inspiring, since everything is expanding, some slow ideas never reach the tongue and keep trapped inside. I think I just reach the end of my infinite imagination... for TODAY :P Thanks for that ;)

      @MiguelSilvaX@MiguelSilvaX9 жыл бұрын
    • Thanks for posting this, but maybe you should cite these sources in the description of each video, hopefully people would check them out before start arguing. Also, you say this in the description: "space itself is expanding such that far away objects are receding rapidly from each other" Far away objects are receding rapidly from US, not each other.

      @MRawash@MRawash9 жыл бұрын
    • Veritasium You said the Universe kinda looks like it is infinite. Why do you say this? I'm very curious. I downloaded the article you linked to, I'll give it a read.

      @Psylent@Psylent9 жыл бұрын
  • Starting a petition to call the "Hubble sphere" the "Hubble Bubble"

    @mythicknight8269@mythicknight82694 жыл бұрын
    • Beautiful...

      @dallinkeele8531@dallinkeele85313 жыл бұрын
    • Yes

      @insomniacdirtbag41@insomniacdirtbag413 жыл бұрын
    • I second that

      @mathlegendno12@mathlegendno123 жыл бұрын
    • Now that's a bubble trouble.

      @SheikhAmeen@SheikhAmeen3 жыл бұрын
    • This is great, let us do that!

      @Manuel-bp7sc@Manuel-bp7sc3 жыл бұрын
  • I've always found some of the most interesting things to contemplate are... 1. How could space possibly end? 2. If it ended, how and where did it end?

    @mikeef747@mikeef7472 жыл бұрын
    • It just vanish in a state of nothingness. Don't forget that only a human being can feel the Univers through his 5 sense. The immensity of space is black, but black represent a colour that we can see. Nothingness is much deeper than that, it is a place where there's no matter and no energy, that mean we can't see it. Thats why we will never be able to see or comprehend the "end" of space.

      @Denso59@Denso592 жыл бұрын
    • @@Denso59 so space is finite

      @HassanAhmed-rf9xr@HassanAhmed-rf9xr2 жыл бұрын
    • @@HassanAhmed-rf9xr Empty space is in theory infinite as it expand through the extension of Matter + Energy

      @Denso59@Denso592 жыл бұрын
    • @@Denso59 do we count what outside. If we do cant we say its finite?

      @HassanAhmed-rf9xr@HassanAhmed-rf9xr2 жыл бұрын
    • @@HassanAhmed-rf9xr If we count everything that is inside then yes we can call our univers finite

      @Denso59@Denso592 жыл бұрын
  • Even in the global pond - I am a journlist/writer - I rarely come across pieces/video in which the essence of a fairly complicated, philosophical-scientific topic is told both so clear and simple that it makes 100 percent sense. I watched other vids on this topic, but totally got it after watching your video once! Thanks. Do you have a video in which timespace is explained?

    @arneybelfor3277@arneybelfor32772 жыл бұрын
    • Check out minutephysics video on time-space, it's very well explained and makes perfect sense

      @JustQuitePro@JustQuitePro2 жыл бұрын
    • Nerd

      @artaranda6332@artaranda63322 жыл бұрын
    • Try to rewatch it now and tell us if it still as clear as the first time 😂

      @andriyshapovalov8886@andriyshapovalov8886 Жыл бұрын
    • idk if you already found it but the title (why gravity is not a force) video explained about the timespace

      @ZleashX@ZleashX Жыл бұрын
    • You mean spacetime

      @mimixisdead@mimixisdead Жыл бұрын
  • Einstein: Nothing can move faster than light Nothing: Yes, yes I can

    @emperorpalpatine3125@emperorpalpatine31253 жыл бұрын
    • Master, I pledge myself to your teachings

      @sanjeevyadav5513@sanjeevyadav55133 жыл бұрын
    • Nothing alone is not a moving thing. ( I think lol )

      @chips.3927@chips.39273 жыл бұрын
    • @@chips.3927 it was a joke

      @emperorpalpatine3125@emperorpalpatine31253 жыл бұрын
    • @@emperorpalpatine3125 I know just to say, i though you were being serious.

      @chips.3927@chips.39273 жыл бұрын
    • @@emperorpalpatine3125 You're still on recovery after you fall down. It doesn't makes senses that's why.

      @chips.3927@chips.39273 жыл бұрын
  • Einstein: NOTHING can travel faster than light. Space: I am NOTHING.......

    @unemployed756@unemployed7564 жыл бұрын
    • Einstein's SPECIAL Relativity: No physical object can move THROUGH space faster than light. Einstein's GENERAL Relativity: SPACE bends and curves and is the source of the force of gravity. Physical objects can and do move WITH expanding space faster than light. The SPECIAL Theory of Relativity is easy to understand, and that's the one people hear about in high school and basic General Physics class in college. The GENERAL Theory of Relativity is harder to understand and requires further study. Einstein came up with both of them.

      @Dannys-mb5xy@Dannys-mb5xy4 жыл бұрын
    • Actual science: Space is not nothing. There is dark energy and dark mattery, and it is not traveling but pushing. Ehh theories...

      @ursxxx@ursxxx4 жыл бұрын
    • unemployed ! Screeches in space

      @wagner55@wagner554 жыл бұрын
    • The thing is... Does space actually move ... or is everything fixed but new space filles up around existing space? Then nothing moves but the amount of space gets denser. And we know in Theory of Relativity that solid objects aren't solid anymore but can be contracted... In a matter of fact: we are shrinking... #mindblown

      @mimarho@mimarho4 жыл бұрын
    • @@ursxxx you seen dark matter? Becuase no one else has... a vacuum is negative pressure and can move things around just the same as pressure. Get out of here with that bark matter jargon. It was a theory that no one has evidence of besides things are moving. There are endless explanations why somthing could be moving in a friction-less space. Dark matter and dark energy is a cop out and not a fresh thought has gone into it in 4 decades.

      @In3xorable@In3xorable4 жыл бұрын
  • "You never run out of infinity" HILBERT HOTEL *COUGH* *COUGH* Edit: it's a joke, you don't need to explain math to me, I know there are different kinds of infinity, I'm tired of getting non-joyful replies

    @capitaopacoca8454@capitaopacoca84542 жыл бұрын
    • I had this thought too but I think it comes down to the semantics of "run out" because even though you can't map a larger infinity into a smaller one, the smaller infinity hasn't ran out of numbers.

      @AxanLderE@AxanLderE2 жыл бұрын
    • Please go outside

      @antiarezzo7630@antiarezzo76302 жыл бұрын
    • The difference between countable infinity and uncountable infinity.

      @anomaly1321@anomaly13212 жыл бұрын
    • cough cough dumb hypothetical cough cough

      @dustinpeloquin5678@dustinpeloquin56782 жыл бұрын
    • @@anomaly1321 cantor diagonalization if i'm not wrong

      @okb6436@okb64362 жыл бұрын
  • I find this stuff fascinating but my brain struggles to cope.

    @harbster2@harbster22 жыл бұрын
    • Take things slowly and maintain consistency

      @aryansah803@aryansah8032 жыл бұрын
    • Instead of coping you should improve it

      @BlackInkYuk@BlackInkYuk2 жыл бұрын
    • Theoretical Sciences in a nutshell.

      @bronzejourney5784@bronzejourney5784 Жыл бұрын
  • I will wait for my brain to expand enough to understand this.

    @yechu26@yechu263 жыл бұрын
    • Expanding space is dumb. There is just empty space with stuff in it. Space isnt an object

      @lagumlemoni331@lagumlemoni3313 жыл бұрын
    • @@lagumlemoni331 Then how do you explain gravity?

      @kurtshaw229@kurtshaw2293 жыл бұрын
    • @@kurtshaw229 theres also a theory that space time curves around large objects like planets, so when an object continues on a straight path, the path curves around that object, but im not so sure about that one, although it sounds plausible

      @lagumlemoni331@lagumlemoni3313 жыл бұрын
    • @@kurtshaw229 although I do believe this theory does have some plausibility to it, and it cannot be completely denied as we dont know how it might work so its possible, but not very reasonable compared to what we already know to be a fact, or atleast extremely, extremely plausible

      @lagumlemoni331@lagumlemoni3313 жыл бұрын
    • But you dont expand the electromagnetic forces keep you together.

      @baltulielkungsgunarsmiezis9714@baltulielkungsgunarsmiezis97143 жыл бұрын
  • Very informative! Another great video, Derek!

    @Seeker@Seeker9 жыл бұрын
    • Seeker I am really getting bored of your channel

      @anirudh67@anirudh676 жыл бұрын
    • thats mean

      @aimer9181@aimer91816 жыл бұрын
    • This is wrong. The Hubble sphere will NOT expand away from us faster than the speed of light. Generally speaking the galaxies are not "moving" apart. It is the space between them that is expanding. Therefore the Hubble sphere would not "catch up" to the very same galaxies that are also "moving" away from us at the very same rate. (those galaxies are ALSO affected by the accelerated expansion...not just the Hubble sphere). In order for it (a previously invisible galaxy near the edge of the Hubble sphere) to become visible to us it would have to move towards us relative to the other galaxies around it. The Hubble sphere by definition is a sphere with us at its center. It's radius in any direction (surface of the sphere) moves away from us at exactly the speed of light. The "accelerating expansion" of the universe DOES NOT. accelerate that sphere. A trillion years from now it will STILL be expanding away from us at EXACTLY the speed of light. Any light bulbs going off in your head right now????

      @jorgensenmj@jorgensenmj5 жыл бұрын
    • getouttahere

      @dread_nought@dread_nought2 жыл бұрын
  • I have been studying cosmology and astrophysics since high school 45 years ago and understanding these concepts of the structure and observabilty of the universe have eluded me. The flow of your speech and the words you string together always greatly enhance understanding, but this time, it was immersing yourself in silly accurate graphics that rammed it home for me! 42!!

    @ulijohnne@ulijohnne7 ай бұрын
    • Sir Once could you briefly explain how light years work? Let us say that we are looking at something which is 2 light years away from us Does that mean we are looking at it how it was 2 years ago? As most KZhead videos say? So, if we were to look at something 50 billion light years away, are we looking at it how it was 50 billion years ago? But how is it possible if the universe itself is said to be 13 billion years old?

      @funnykitten2927@funnykitten2927Ай бұрын
  • Watching it after 7 years in 2022 and I learned so much. Universe indeed could be infinite and expanding in to itself. What a concept, mind boggling.

    @Mark1Mach2@Mark1Mach2 Жыл бұрын
    • Just discovered 3 days ago. Obsessed, halp 😐. It's almost not a joke

      @MattCayen@MattCayen Жыл бұрын
    • Stephen Hawking and the rest of the scientist get that obsessed card already. 🤢

      @boyygin75@boyygin757 ай бұрын
  • The more you know makes you realize how much you don't know.

    @newbyclive@newbyclive5 жыл бұрын
    • Heavy

      @edholohan@edholohan5 жыл бұрын
    • @@edholohan going places

      @SEAsia_RTS@SEAsia_RTS5 жыл бұрын
    • VSauce Michael here?🤔

      @darealmaul@darealmaul4 жыл бұрын
    • Scio me nihil scire

      @fpenzar4177@fpenzar41774 жыл бұрын
    • Dunning-Kruger effect

      @johnleuenhagen9068@johnleuenhagen90684 жыл бұрын
  • This video was uploaded in 2014 and I am just receiving it today because of the expanding universe!

    @rogersowers9837@rogersowers98375 жыл бұрын
    • Fax!

      @Aakash_Goswami1@Aakash_Goswami14 жыл бұрын
    • ursula

      @alvideiectiones5097@alvideiectiones50974 жыл бұрын
    • Good one :)

      @armandof1682@armandof16824 жыл бұрын
    • And utub

      @chari---zard@chari---zard4 жыл бұрын
    • Haha

      @astronaut6418@astronaut64184 жыл бұрын
  • I have seen enough of your videos about physics that I recognize how loaded "as far as we can tell" really is.

    @bnpixie1990@bnpixie19902 жыл бұрын
  • You never run out of infinity, that's pretty cool. This guy is a great presenter. :)

    @jeffreywickens3379@jeffreywickens33792 жыл бұрын
  • There was a brief moment where I felt a new, unusual kind of terror, watching this video.

    @elc2k385@elc2k3854 жыл бұрын
    • The fact that you are puny, and was, is, and will never be able to see everything.... It scares me

      @janluus9590@janluus95903 жыл бұрын
    • @@janluus9590 Nay, good fellow human, we'll hook Artifical Intelligence to Quantum computers and we'll see the whole thing. It's as if we were dogs, and lever handles were put on all the door knobs, facilitating our movement from here to there's never 'here'd' before. :) If we can keep AI, government and corporations from killing us over the next 10 or so years, we'll be good for an amazing future.

      @lancethrustworthy@lancethrustworthy3 жыл бұрын
    • If you walked day and night for 7 years you could travel as far as light travels in one second, about 300,000km. In an hour light travels over a billion kilometres, and in a year nearly 10 trillion kilometres. The universe is 93 billion light years across, so multiply that 10 trillion kilometres per year by 93 billion years. "Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is."

      @gz3zbz@gz3zbz3 жыл бұрын
    • @@gz3zbz I remember how my head got dizzy and getting crazy goosebumps when realizing for the first time how vast it actually is.

      @thompsonschwabbel6622@thompsonschwabbel66223 жыл бұрын
    • @@gz3zbz I can't wait for the new hyperspace bypass to be build so that I could travel faster!

      @Kamuka1024@Kamuka10243 жыл бұрын
  • the money from my bankaccount moves away from me faster than the speed of light

    @real1213@real12135 жыл бұрын
    • 😂. True that

      @marcos-4469@marcos-44695 жыл бұрын
    • I got 0.02 in my checking account as of now, after spend 1200 on a used $7K 2012 bike :D.

      @milads4070@milads40705 жыл бұрын
    • Actually, long range cables use fiber optics so your bank account is just moving at the speed of light. Sorry to disappoint.

      @evanwatling3897@evanwatling38975 жыл бұрын
    • Sentient2x r/wooosh

      @EmperorPeterParkour@EmperorPeterParkour5 жыл бұрын
    • In that case I think ur money must be tyachon particles

      @mitochondria7321@mitochondria73215 жыл бұрын
  • I’m addicted to this channel. At least I’m learning

    @shanechurilla@shanechurilla2 жыл бұрын
  • The ending of this video actually answered some questions I had about the universe. Such as "if the universe is X lightyears big then what's outside of it?" and "if the universe is growing, what's it growing into?" The answers being that the universe is actually infinite and only what we can see is growing, and that the universe expands inward not outward. So thank you so much for that.

    @Otome_chan311@Otome_chan3112 жыл бұрын
    • Buy wait a damn minute! If universe really is expanding inwards doesn't that means it actually shrinking lol

      @Roanak572@Roanak572 Жыл бұрын
    • @@Roanak572 Sorry I was a bit unclear about that. By that comment I meant that the "in-between" parts of matter are growing. ie the inside is growing, rather than the outside.

      @Otome_chan311@Otome_chan311 Жыл бұрын
    • @@Roanak572 think of it like the ever increasing resolution of televisions. Same size screens, but more pixels with more information and details being squeezed into the screen. The universe isn't growing or shrinking, our perception of it is zooming in, closer and closer. Kinda like finding more and more digits of pi, we keep zooming into the math.

      @jason86768@jason86768 Жыл бұрын
  • I rate Big Bang was an unstable Worm Hole that raptured.

    @OfentseMwaseFilms@OfentseMwaseFilms3 жыл бұрын
    • If it was a wormhole that raptured then where are wormholes today. Would we not be able to see them, and the farthest observable point in space is 13.8 billion years. Before the time of light-matter in fact 1 billion years before the time of light-matter. Meaning our universe might be older than we observe. If your wormhole theory is true this fits with it because the wormhole would be infinite with the expansion of space. If you do believe in the big bang theory we know that it may not have been possible for this universe to form because before this there was literally NOTHING. So in this case a singularity would be impossible because GR would break down. There is so much we don't know and your theory may be closer to the answer.

      @devaviation6444@devaviation64443 жыл бұрын
    • sorry for the dragged out explination

      @devaviation6444@devaviation64443 жыл бұрын
    • @@devaviation6444 How dare you :)

      @ericbridge8419@ericbridge84193 жыл бұрын
    • @@devaviation6444 u said: 'because before this there was literally NOTHING' . There dint have to be something, to become something. Thats only how we reason from human perspective, and earth's laws.

      @thesuperskull@thesuperskull3 жыл бұрын
    • I actually think the Big Bang was the collapse of the last black hole in a previous universe.

      @fafnir242@fafnir2423 жыл бұрын
  • We’ve become so used to the universe and space, we sometimes forget how crazy this reality is we live in. It’s crazy

    @dougg1075@dougg10755 жыл бұрын
    • it is as if the impossible were possible by a fraction of fraction fraction of fractional fraction of fraction of second of relative time.

      @renatoigmed@renatoigmed4 жыл бұрын
    • It is true insanity.

      @malachitigrett8462@malachitigrett84624 жыл бұрын
    • Doug G Laugh *Ps.8:* 3When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; 4What is man, that thou art mindful of him? and the son of man, that thou visitest him? *Ps.104:* 2Who coverest thyself with light as with a garment: who stretchest out the heavens like a curtain? *Jer.10:* 12He hath made the earth by his power, he hath established the world by his wisdom, and hath stretched out the heavens by his discretion. *Isa.42:* 5Thus saith God the LORD, he that created the heavens, and stretched them out; he that spread forth the earth, and that which cometh out of it; he that giveth breath unto the people upon it, and spirit to them that walk therein: *Job.26:* .6Hell is naked before him, and destruction hath no covering. 7He stretcheth out the north over the empty place, and hangeth the earth upon nothing. *Heb.11:* 3Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear. *Isa.45:* 19 I publicly proclaim bold promises. I do not whisper obscurities in some dark corner. I would not have told the people of Israel to seek me if I could not be found. I, the Lord, speak only what is true and declare only what is right. *Isa.43:* 22“But, dear family of Jacob, you refuse to ask for my help. You have grown tired of me, O Israel! 23You have not brought me sheep or goats for burnt offerings. You have not honored me with sacrifices, though I have not burdened and wearied you with requests for grain offerings and frankincense. 24You have not brought me fragrant calamus or pleased me with the fat from sacrifices. Instead, you have burdened me with your sins and wearied me with your faults. 25“I-yes, I alone-will blot out your sins for my own sake and will never think of them again. 26Let us review the situation together, and you can present your case to prove your innocence. 27From the very beginning, your first ancestor sinned against me; all your leaders broke my laws. 28That is why I have disgraced your priests; I have decreed complete destruction for Jacob and shame for Israel.

      @kalifor94everyone2@kalifor94everyone24 жыл бұрын
    • Kalifor9 4:Everyone Thank you for this wonderful citation, God bless! And it is true, as humans are near to the nothingness of an infinite sea of knowledge. We will never have control over the solar system, the galaxy, not even our small marble.

      @aa-to6ws@aa-to6ws4 жыл бұрын
    • It's Not the fact that we got used to it its the fact that our minds can't comprehend the vastnesse and complexity of the universe .

      @mtawk1833@mtawk18334 жыл бұрын
  • I have a question that I'd love to see your thoughts on: why has there only been one big bang? Could conditions arise where we experience another big bang, and if we did - what would it mean to have a second universe expanding and eventually colliding with our expanding universe?

    @projectsoup@projectsoup2 жыл бұрын
    • Nobody said there was only one big bang. We can see only one, we can not say anything about things outside the region we can see. Out there might be one or infinitely many more big bangs. We might never know!

      @misterphmpg8106@misterphmpg81062 жыл бұрын
    • Want if there is a expanding universe in which infinite big bangs are happening

      @Surya_namaskaram@Surya_namaskaram2 жыл бұрын
    • I know its 7 months late but if you imagine space as a grid then before the big bang the distance between the points of the grid were equal to 0, so the big bang happend everywhere and at one point.

      @osamabinladen9650@osamabinladen96502 жыл бұрын
    • There is no way I'm thanking a person with that profile for clearing everything up. No way. But that does make a ton of sense

      @Tom-oz7wk@Tom-oz7wk Жыл бұрын
    • @@osamabinladen9650 maybe that universe is infinite and was always infinite , we don't know what exist beyond obsevable universe , we estimated based on that data we have that there is one big bang cuz everything that we see came from the same point , but what if beyond what we see there are inifnite bigbangs ? we don't know and we won't , thats the scary part , the univers is too big for us unfortunatly

      @alaa341g@alaa341g Жыл бұрын
  • I just found the answer to my previous question. The “ cosmological principle” explains the no matter where you are in the universe everything around you looks to be moving away. I don’t think I ever knew this. Learned something new today.

    @dianewilson7984@dianewilson79842 жыл бұрын
  • Reality is more exciting and interesting than our wildest fantasies.

    @el060248@el0602483 жыл бұрын
    • Reality transcends it. :)

      @gozinta82@gozinta822 жыл бұрын
    • Not mine

      @morgiewthelord8648@morgiewthelord86482 жыл бұрын
    • LMAO! you obviously dont watch anime... JS

      @ravinereedy204@ravinereedy2042 жыл бұрын
    • Because we don't completely know the reality, once we do, our imagination will surely pass that limit.

      @zhentian1977@zhentian19772 жыл бұрын
    • one cant exist without the other

      @gabesmith6463@gabesmith64632 жыл бұрын
  • This is the kind of video you leave more confused than you started

    @cbarr0288@cbarr02883 жыл бұрын
    • @@m.dewylde5287 So did my 4 month old baby! in fact, she is typing this for me!

      @rud.2968@rud.29682 жыл бұрын
    • *That's because his explanation is horrible and harder to follow (if it's even right, I can't tell). Now if you look up a video by Fermilab on the Big Bang and about the 46B ly radius of the visible universe, that one is impeccable and can be easily followed). This one to me sounds like gibberish, though perhaps he is right but using a twisted explanation, instead of an easy explanation. Here's a tip, when scientists say that they can see a galaxy 46B ly from Earth, they can see it as it was in the past when the distance to Earth from said galaxy was still within the reach of a photon. So, the image of the galaxy they see is not the same image of the galaxy that is now at 46B ly away.*

      @ThomasJr@ThomasJr2 жыл бұрын
    • @@m.dewylde5287 No, I’m going to have to sell her now.

      @rud.2968@rud.29682 жыл бұрын
    • @@ThomasJr u r a fool to not understand this

      @ghostwarrior6831@ghostwarrior68312 жыл бұрын
    • @@ghostwarrior6831 nope, the video explained it in the most possibly convoluted way. Watch the Fermilab video and you will see how much better it is. This one is non-sense.

      @ThomasJr@ThomasJr2 жыл бұрын
  • This is easily PBS spacetime quality, please please do more videos like this one!

    @georgerevell5643@georgerevell5643 Жыл бұрын
  • Man your explanations are always very clear. 🙌🔥

    @trendscatalyst318@trendscatalyst3182 жыл бұрын
  • the ending literally shook me lmao. i've never thought of the expanding universe in that way

    @MrFanservice@MrFanservice3 жыл бұрын
    • Yep. I always thought about what is outside of the universe and can't comprehend it. This just changes my whole thought process.

      @AbhishekPatelab9@AbhishekPatelab92 жыл бұрын
    • Its just a theory don't take it for granted

      @notme2554@notme25542 жыл бұрын
    • Expansion is relative to one big bang, but infinite is not even related to that. infinite is infinite before or after that bang and goes beyond any big bang, the concept of infinity is hard to assimilate.

      @Juan-xn2nt@Juan-xn2nt2 жыл бұрын
    • @Javier Rafael Mitogo Nguema Nguema I think it's because of how we visualize it. Don't visualize the edge of the universe as a hard border / line. Before I always did this because I imagined the universe as a circle which is always growing. Instead, as in the video you can imagine the universe as recursive. Imagine this: you are in spaceship and you look out the window at one piece of universe and you see it, it's big and black. You go to it with your spaceship. When you get there, the area you are at is now big and "zoomed" in compared to how you observed it from far away before you flew your spaceship there. But now when you look out your spaceship window you see the same thing again, more black space that is far away, so you fly into again, once there everything comes into focus and once again you see the same pattern of more space you can fly into. It's this endless loop or recursiveness that makes the universe infinite. Or as the video said "the universe expands into itself" with a visualization of how once you zoom into square you see more small squares forever and ever.. Hope this makes sense lol. It's hard to put into words.

      @ruanduplessis6375@ruanduplessis63752 жыл бұрын
    • true

      @bobjones5869@bobjones58692 жыл бұрын
  • These are by far the most addictive videos on KZhead for me. They're highly informative, easy to digest and your personality is totally Canadian.

    @bcrhiaadn1@bcrhiaadn14 жыл бұрын
    • Not that easy to digest for most people.but yeah, interesting.

      @dragos1894@dragos18944 жыл бұрын
    • Vsauce and kurzgesyagt (or however you spell it) are also good channels

      @konankunoichi94@konankunoichi944 жыл бұрын
    • But he's Australian :D

      @mlopezprongs@mlopezprongs4 жыл бұрын
    • Canadian?....he just sounds like an American to me

      @matthewlewis2223@matthewlewis22234 жыл бұрын
    • @@matthewlewis2223 A lot of Canadians sound American. That's a common misconception (I'm one of those people). He said personality also, not speech.

      @TsarDragon@TsarDragon4 жыл бұрын
  • These questions I have been thinking since I was a kid. What is outside the universe? What contains the universe?

    @Dkgupta121@Dkgupta1212 жыл бұрын
    • Maybe nothing is outside the universe, maybe nothing contains the universe because the universe is all there is. But... we don't really know. :)

      @bitsninja297@bitsninja2972 жыл бұрын
    • @@bitsninja297 i know

      @lard66@lard66 Жыл бұрын
  • Brilliant... love these topics... keep em coming....

    @paulclark1227@paulclark12272 жыл бұрын
  • Telescopes are basically time machines..

    @user-lw5oc1tt8k@user-lw5oc1tt8k5 жыл бұрын
    • just like our eyes ffs

      @qure1159@qure11595 жыл бұрын
    • Not...

      @petroldevo9934@petroldevo99345 жыл бұрын
    • Maybe it makes the time to see planets faster

      @himeshviews7622@himeshviews76225 жыл бұрын
    • More like Time Scale

      @Babayaga413@Babayaga4135 жыл бұрын
    • To our eyes , yes it is.👀

      @a.l7025@a.l70255 жыл бұрын
  • Now I'm more confused than ever

    @jiteshjangid369@jiteshjangid3694 жыл бұрын
    • Jitesh Jangid Laugh *Ps.8:* 3When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; 4What is man, that thou art mindful of him? and the son of man, that thou visitest him? *Ps.104:* 2Who coverest thyself with light as with a garment: who stretchest out the heavens like a curtain? *Jer.10:* 12He hath made the earth by his power, he hath established the world by his wisdom, and hath stretched out the heavens by his discretion. *Isa.42:* 5Thus saith God the LORD, he that created the heavens, and stretched them out; he that spread forth the earth, and that which cometh out of it; he that giveth breath unto the people upon it, and spirit to them that walk therein: *Job.26:* .6Hell is naked before him, and destruction hath no covering. 7He stretcheth out the north over the empty place, and hangeth the earth upon nothing. *Heb.11:* 3Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear. *Isa.45:* 19 I publicly proclaim bold promises. I do not whisper obscurities in some dark corner. I would not have told the people of Israel to seek me if I could not be found. I, the Lord, speak only what is true and declare only what is right. *Isa.43:* 22“But, dear family of Jacob, you refuse to ask for my help. You have grown tired of me, O Israel! 23You have not brought me sheep or goats for burnt offerings. You have not honored me with sacrifices, though I have not burdened and wearied you with requests for grain offerings and frankincense. 24You have not brought me fragrant calamus or pleased me with the fat from sacrifices. Instead, you have burdened me with your sins and wearied me with your faults. 25“I-yes, I alone-will blot out your sins for my own sake and will never think of them again. 26Let us review the situation together, and you can present your case to prove your innocence. 27From the very beginning, your first ancestor sinned against me; all your leaders broke my laws. 28That is why I have disgraced your priests; I have decreed complete destruction for Jacob and shame for Israel.

      @kalifor94everyone2@kalifor94everyone24 жыл бұрын
    • @@kalifor94everyone2 lol

      @Corn0nTheCobb@Corn0nTheCobb4 жыл бұрын
    • My brother said so too after our first night

      @frankfreaksout7736@frankfreaksout77364 жыл бұрын
    • Lol that literally is the will of that beast we call knowledge, the more we know, the less we realize we actually know. Beautiful and bitter all at the same time

      @connormcmillan6761@connormcmillan67613 жыл бұрын
    • sAmE

      @darkemperor9006@darkemperor90063 жыл бұрын
  • When he started with the intro, I was like “isn’t that happening right now” then he says, “that is happening right now” 😂

    @JoseMedina-vr7sl@JoseMedina-vr7sl2 жыл бұрын
  • you explain some tircky concepts very intuitively, good work!

    @georgerevell5643@georgerevell5643 Жыл бұрын
  • even universe expansions come for free.... learn something EA, learn!

    @seanachiescourt6659@seanachiescourt66594 жыл бұрын
    • @@kalifor94everyone2 What the hell is this?!

      @ARCISX@ARCISX4 жыл бұрын
    • ARCEX He is writing something from the bible i think. Pretty random tho.

      @messidinho8895@messidinho88954 жыл бұрын
    • @@messidinho8895 I know it's something to do with the Bible but why is it randomly posted over here lol?

      @ARCISX@ARCISX4 жыл бұрын
    • @@kalifor94everyone2 random lol

      @migs6685@migs66854 жыл бұрын
    • 😁😁😁😁😁

      @gunjeetsingh9035@gunjeetsingh90353 жыл бұрын
  • I guess youtube is expanding so fast that it took 5 years for this video to reach me. Phew!

    @ShoeBum123@ShoeBum1234 жыл бұрын
    • Oh yus (nice one)

      @vari1535@vari15354 жыл бұрын
    • Well it's relatively faster to you than me. ...

      @donkeyxote7729@donkeyxote77293 жыл бұрын
    • It took 6 yrs to get to me what does that say?

      @annemckeon6532@annemckeon65323 жыл бұрын
    • @@annemckeon6532 Clearly KZhead is expanding faster than what people can watch :P

      @ShoeBum123@ShoeBum1233 жыл бұрын
    • I don't know but this is the most genius comment I have ever read

      @aleksiniko@aleksiniko3 жыл бұрын
  • Wow. Great video. The more I listened and analyzed what you were saying, the more my brain overheated. Very interesting things here.

    @dennisk5818@dennisk58182 жыл бұрын
  • Thank you for essentially introducing the idea that things never began and will never end -- an idea that we need to shake off from our premature or ego-based perspectives of the nature of existence.

    @gabegibler3393@gabegibler33932 жыл бұрын
  • Note to self: don't watch videos about the universe when you're having an existencial crisis.

    @ortcelo6947@ortcelo69476 жыл бұрын
    • Ortcelo ..or should you?

      @Ta3iapxHs@Ta3iapxHs6 жыл бұрын
    • Always strive to bring a galactic perspective to the problems of earthly life.

      @_thenyounoticeyourethinking@_thenyounoticeyourethinking6 жыл бұрын
    • As your medical advisor, I would recommend the consumption of recreational materials and copious amounts of strong drink, after which all will become clear 🤪

      @Johnny-sj9sj@Johnny-sj9sj5 жыл бұрын
    • As someone who has done mushrooms multiple times, I would strongly advise to try mushrooms and try to analyze such things. It's super strange how on mushrooms you are more much capable to comprehend things.

      @LTElectroHandsUp@LTElectroHandsUp5 жыл бұрын
    • Ta3iapxHs Having an existential crisis is the only sane state of mind.

      @Tore_Lund@Tore_Lund5 жыл бұрын
  • I kind of get how the universe could be infinite. But struggle to comprehend how something can be infinitely dense.

    @VocallyDerivative@VocallyDerivative8 жыл бұрын
    • ITSALLDERIVITIVE There is currently no adequate scientific description of the properties of the big bang before the beginning of the expansion. The old idea that it was a gravitational singularity within the theory of General Relativity is no longer widely accepted. (Stephen Hawking publicly changed his mind about that.) The point is that the galaxies of the universe are measurable distances from each other and those distances are increasing at a finite rate. This implies that there was a finite time in the past when the distances were all Zero. This clearly means that the universe had to be much denser and much hotter and much smaller, and the energy from this state is observed and measured as the Cosmic Microwave Background radiation. The word "infinite" is clearly inadequate to describe this state in any aspect. Astronomers and astrophysicists today often simply use the term "hot dense state" to describe this initial state of the universe before it expanded to the universe we observe today.

      @sandersons.9472@sandersons.94728 жыл бұрын
    • ***** Most of what you said is common knowledge to me, not to sound overly confident. Yet I still believe my query holds water. That is that the universe was supposedly infinititly dense, if I find out that it is a term used loosely I will correct my mind.but also be left with frustration because terms used loosely in this field are not good enough if we are to advance our knowledge of the universe.if we don't know we don't know and should say we don't know. In my mind a theory that gains momentum is still a theory. Again not to sound overly abitious but I prefer my own theorys.

      @VocallyDerivative@VocallyDerivative8 жыл бұрын
    • ***** Was the singularity infinititly dense or not. That's my question

      @VocallyDerivative@VocallyDerivative8 жыл бұрын
    • ITSALLDERIVITIVE Sorry that I told you things that you already know. And as far as I'm concerned, you can have any "theory" you want and consider it superior to accepted science if you want to. I responded to your question in terms of what I believe to be accepted science. I'll repeat what I said. The concept of the big bang as a gravitational singularity of infinite density is no longer widely accepted by science, and descriptions of a physical state as being "infinite" is at best problematic. That's my answer to your answer based on my understanding of currently accepted science. You can take it or leave it.

      @sandersons.9472@sandersons.94728 жыл бұрын
    • ***** It's as if you copied and pasted (your original post,it was textbook) any who. .if the universe is infinite and it's likely that it is. (Space itself atleast) then the universe must have been infinititly dense.

      @VocallyDerivative@VocallyDerivative8 жыл бұрын
  • i watch so many of these videos and half the time i dont even understand whats going on but i keep coming back

    @jazzm786@jazzm7862 жыл бұрын
  • This is such a brilliant explanation!!!

    @hadrianos1@hadrianos12 ай бұрын
  • I thought he was talking about the national debt for a minute.

    @TheDragonAzz@TheDragonAzz3 жыл бұрын
    • Lmao

      @georgecollins6706@georgecollins67063 жыл бұрын
    • Ahaha, good one Neal. When Republicans are in power: national debt level is inconsequential. Democrats in power: national debt level is outrageously dangerous.

      @mark-ish@mark-ish3 жыл бұрын
    • Hilarious.

      @hi12235@hi122352 жыл бұрын
    • Lmao

      @capitaopacoca8454@capitaopacoca84542 жыл бұрын
    • When it expands into itself, we call that inflation. Which it was I talking about again?

      @Oleander410@Oleander4102 жыл бұрын
  • it's great that this kind of videos get millions of views

    @arthurdont1478@arthurdont14786 жыл бұрын
    • except for the fact its factually not correct

      @msq7041@msq70415 жыл бұрын
    • MLM Blob brain dead conspiracy theorist

      @evan6898@evan68985 жыл бұрын
    • @@msq7041 Prove him wrong then son.

      @piccoloatburgerking@piccoloatburgerking5 жыл бұрын
    • @@piccoloatburgerking read any introduction on special relativity, if two objects are moving away from you in opposite directions at 99% the speed of light that does not mean they are moving apart from each other at 198% the speed of light from their point of view, thats not how velocities are added in special relativity. no object can have a velocity higher then the speed of light relative to any observer

      @msq7041@msq70415 жыл бұрын
    • @@piccoloatburgerking if youd be flying at the 99.9999999% speed of light and chasing a photon, itd still have the speed of light relative to you. relativity isnt intuitive

      @msq7041@msq70415 жыл бұрын
  • In my opinion what we consider is, as I think it has been remarked, the scale motion: As in the famous example of the balloon that represents the universe with the points drawn with a felt-tip pen as if they were galaxiest the result leads us, from our perspective, to measure speeds higher than the photonic one ... But on a scale of magnitude ... it would be hard for me to really blow at the speed of light ... And I'm probably not doing that ....

    @francescoiuliano5690@francescoiuliano56902 жыл бұрын
  • Thanks again for making me feel as small as I possibly could. EXCELLENT

    @Jbertt910@Jbertt9102 жыл бұрын
  • 2:06 “Receding fast than the speed of light,” sort of like my hairline

    @Nathanatos22@Nathanatos223 жыл бұрын
    • That's sad

      @georgedizol452@georgedizol4523 жыл бұрын
    • How's your hair now

      @oreowithurea5018@oreowithurea50183 жыл бұрын
    • Can relate :’(

      @observantmagic4156@observantmagic41562 жыл бұрын
    • Lol 😂, gonna be a saitama 😂

      @sylvesteruchia5263@sylvesteruchia52632 жыл бұрын
    • @A7 lmaoooo

      @isuckatnamingthings5499@isuckatnamingthings54992 жыл бұрын
  • What exactly do you mean by "It kind of looks like the universe is infinite"? Could you elaborate?

    @ZoggFromBetelgeuse@ZoggFromBetelgeuse9 жыл бұрын
  • Are we at the center of the observable universe? Is the actual origin point of the universe, as mapped by the directions of the expansion anywhere near us? Are we out to one side and there are objects expanding in toward us (but away from the center)? OR, since we are further out from the center, those objects are never going to move as fast as we are because we are further out than them and they may see us be we will never see them? Sorry if that question didn't make sense.

    @Zr0din@Zr0din2 жыл бұрын
  • I feel like there’s a point in learning about space where you just have to accept that it makes no sense and everything just is the infinite way it is

    @monkeyman8393@monkeyman83932 жыл бұрын
    • The universe is not infinite, if you think it is please present some evidence.

      @TransoceanicOutreach@TransoceanicOutreach2 жыл бұрын
    • @@TransoceanicOutreach present yours

      @car6426@car64262 жыл бұрын
    • @@car6426 Funnily enough, I actually had a shower thought about this Ok so if the universe is infinite, There's always a possibility for everything right? So, there should be a version of let's say you, who has teleportation powers cuz why not, would teleport to you, exactly at this time. but since there isn't, it most likely isn't infinite ***Just a shower thought I had, not actual science or something***

      @tausiftaha12@tausiftaha122 жыл бұрын
    • @@tausiftaha12 if that were true then there would be an infinite number of @cars teleporting to the one on our earth and they would all become a very gross infinitely squishy mess There's a difference between the infinite universe and the infinite multiverse. Our universe could be infinite without repeating (we've seen veritasium make a pattern out of tiles that never repeats) while the multiverse is more a theory about how we might live parallel to versions of ourselves where the timelines play out differently. Because of this, I'm gonna say that a version of @car not teleporting to that @car isn't proof that the universe is finite. I will thank you though because you've helped me understand a few things

      @Tom-oz7wk@Tom-oz7wk Жыл бұрын
    • ​@@tausiftaha12 thats kinda wrong, infinite space still has laws of physics and logic so only infinite possible things can hapoen

      @blizzard1198@blizzard11985 ай бұрын
  • My tiny human brain cannot comprehend things like how the universe can be infinite, how a "big bang" could have occurred everywhere at once, what existed before the big bang, or how nothing could have existed. Basically, I can't wrap my head around infinite space, time, and nothingness. (which also brings to mind what happens after we die. If everything just ceases to be, what is that like? I guess it's not like anything because you can't actually experience it. I just can't imagine that. Ugh, what is life?! What is anything?!)

    @elviswjr@elviswjr7 жыл бұрын
    • It's ok man. Just lay off Mary Jane for a while

      @raiji7922@raiji79227 жыл бұрын
    • Rai Ji.......now that there was funny, i don't care who you are that there was funny.

      @johnabuick@johnabuick7 жыл бұрын
    • It's not hard to imagine yourself not experiencing something. You aren't experiencing being in Paris right now, it's just like that.

      @AniketosHonor@AniketosHonor7 жыл бұрын
    • I've always thought of the nothingness after death to be similar to the 13,8 billion years before I was born. Went by pretty fast, weren't bored.

      @DrCanyonero@DrCanyonero7 жыл бұрын
    • im pretty sure that is is not a pony

      @dustyalbones-reendust4385@dustyalbones-reendust43857 жыл бұрын
  • Im not getting fat, im expanding within myself

    @jackmulder3038@jackmulder30384 жыл бұрын
    • thats my explanation for being fat. cosmical expansion.

      @sc_mapping@sc_mapping2 жыл бұрын
  • You explained this very well. Of course, it makes sense: we see that light because our part of the observable universe is expanding with it. We simply don't see its exact location because that location has been and still is always moving.

    @Leto85@Leto856 ай бұрын
  • Hot dang, thank you. I repeatedly have wondered why in for example videos that compare sizes in the universe, the diameter of the observable universe is often given as 93E9 ly and not 27,8E9 ly. Now I know. Thank you for that.

    @yama123numbercauseytdemand4@yama123numbercauseytdemand4 Жыл бұрын
  • the only big bang here is my mind being blown.

    @cameronbarnettofficial@cameronbarnettofficial8 жыл бұрын
    • +cameron barnett the only big bang here is gang bang

      @00cypress@00cypress8 жыл бұрын
    • +cameron barnett My brain hurts

      @davylievens295@davylievens2957 жыл бұрын
    • Hahaha!! Mine too! ;)

      @ThePrissyMommyLife@ThePrissyMommyLife7 жыл бұрын
    • if you want your brain to melt, watch videos on string theory and membranes

      @ElBantosClips@ElBantosClips7 жыл бұрын
    • Relevant: xkcd.com/171/

      @LukeDude759@LukeDude7597 жыл бұрын
  • It amazes me how space is so... unbelievable. How is something so huge, why so many spheres with different sizes are floating... This is mind-blowing. Also, black holes. HOW?!

    @Lucky-bn2ks@Lucky-bn2ks5 жыл бұрын
    • @@JerryMetal that was so unbelievably incorrect I don't know where to start

      @Avatar1178@Avatar11785 жыл бұрын
    • @@commanderleo lol he deleted it from humiliation ....I wanna know too XD

      @abinvarkey2331@abinvarkey23315 жыл бұрын
    • @@onechippyboi calm down

      @asall727@asall7275 жыл бұрын
    • Sean Payton relax on the copy and paste from Wikipedia. We understand that you’re knowledge and intellect is far superior to anybody ever and that you are the peak of human evolution. All hail Sean Payton, the next messiah who will lead us with his incredibly high iq and annoying know it all comments. Just let the person marvel on how amazing the universe Is instead of trying to flex your knowledge that you found online.

      @averyshaw2142@averyshaw21425 жыл бұрын
    • Sean Payton ah an australian, makes sense that you would be annoying. Also makes sense ur interested in astronomy, given you live upside down

      @averyshaw2142@averyshaw21425 жыл бұрын
  • Another fun thing you have had in this episode is where is the center of universe since it is described as a sphere.

    @nedludd7622@nedludd76222 жыл бұрын
  • What if they are moving closer to each other? Like andromeda and the milky way. How do you know how far enough they have to be to not move towards each other proving expansion? likely a point beyond where they would be affected by each other's gravitational pull. But what happens if two points beyond that are past that distance apart yet are moving closer to each other? Where gravity is not in affect on the points direction. Would that make expansion wrong? or do we assume that there was some collision in place that changed that points direction, coincidentally making it move towards the point beyond the distance that show expansion.

    @MikeSion@MikeSion2 жыл бұрын
  • I have been expanding a lot during this quarantine.

    @jamesblunt006@jamesblunt0063 жыл бұрын
  • 2:22 this is extremely contradictory. If the expansion of space is accelerating, then the Hubble sphere, defined by the boundary at which objects are moving away from us faster than the speed of light, should be shrinking! And vice versa, if the Hubble sphere is expanding, then the expansion of the universe is decelerating. If the expansion of the universe is accelerating then the expansion-rate becomes greater over time. If the expansion rate becomes greater over time, then the distance before something is receding away from us at more than the speed of light becomes shorter over time.

    @mortenrobinson@mortenrobinson5 жыл бұрын
    • You're absolutely right! There is a very misleading conceptual error in the video at 2:22.....which reflects the fact that he was trying to gloss over a difficult point without reference to mathematics. While it's true that the Hubble Sphere is in fact getting bigger in PROPER distance (true physical distance which reflects the expansion of the universe,) the REASON for the increase in the Proper radius of the Hubble sphere over time is NOT as he says "the accelerating expansion of space." The Hubble sphere is in fact getting bigger over time (as you realized) due to a SLOWING effect caused by the DECREASE in the Hubble Constant over time. The Hubble Constant (sometimes called the Hubble Parameter) is the overall rate of expansion of the metric of space itself, and it IS still decreasing, as it always has been, even though the recession velocity of individual galaxies is now ACCELERATING. So the Hubble Sphere increases in size over time as the Hubble Constant decreases over time, AND the Hubble Constant IS still decreasing even though the recession velocity of individual galaxies is now ACCELERATING. (Check out the Wikipedia article "Hubble Volume.") The Proper radius of the Hubble Sphere is by definition the speed of light "c" divided by the Hubble Constant "H", and so over time, the Proper radius of the Hubble Sphere "c/H" increases inversely to decreasing "H." This video describes the situation in the early universe when the Hubble Sphere was expanding faster than the space around it, allowing it to overtake objects that were originally outside it and causing an INFLOW of galaxies into the Hubble Volume. BUT, in 1998, scientists (who won the Noble Prize in physics in 2011) discovered that about five billion years ago, Dark Energy acceleration became dominant in the expansion of the universe. This has caused a reduced rate of decrease in the the Hubble Constant.....and therefore a decreased rate of expansion of the Hubble Sphere. So NOW, the Hubble Sphere is no longer expanding faster than the space around it, and there is an OUTFLOW of galaxies from the Hubble Volume. Many galaxies we can see in the Observable Universe TODAY in light from the PAST, will not be seen in the Observable Universe of the far distant FUTURE in light being emitted TODAY. The mathematical way of saying this is that in the early universe the radius of the Hubble Sphere was increasing in PROPER coordinates AND in COMOVING coordinates; whereas in the accelerating universe of today, the radius of the Hubble Sphere is still INCREASING in PROPER coordinates, but is now DECREASING in COMOVING coordinates. (This is clearly illustrated graphically in relativistic spacetime diagrams, which can be plotted in Proper Distance, Comoving Distance, and in Conformal Time.) For more discussion and detail about the somewhat counter-intuitive concept of a decreasing Hubble Constant in an epoch of Dark Energy acceleration, check out the Wikipedia article titled "Scale Factor (Cosmology)", especially the first subsection titled "Detail". Also....a PhD physicist at CalTech, Dr. Sean Carroll, wrote a fine blog entry about the subject titled "Dark Energy FAQ." Google "Sean Carroll - Dark Energy FAQ". He talks about the decreasing Hubble Constant in the fourth FAQ.

      @Dannys-mb5xy@Dannys-mb5xy4 жыл бұрын
    • Calm down you too Demonwisper and Danny. I put it simpler. I think. Lol

      @ZeusHelios@ZeusHelios3 жыл бұрын
    • @@Dannys-mb5xy This is what I wanted to hear. And this why exactly I started gleaning over the comment section as it was itching me, that this ain't right. Thanks for your wonderful intuitive explanation. Loved it. I love astronomy. Like you do. I am sure. I've started writing blogs on my medium page, fascinating stuffs happening in the cosmos. www.medium.com/venkatesh17nayak . Do check it out and let me know. Would love to have chats with you. Really look forward in talking to you. Hopefully you reply. Adios!

      @venkateshnayak5096@venkateshnayak50963 жыл бұрын
    • ​@@venkateshnayak5096 Thanks for the feedback. I'll check it out. I might mention that there are many more videos on the subject of cosmology on KZhead in the "PBS Space Time" and "Fermilab" channels. If interested, you can search "cosmology" and the channel names to bring them up. :-)

      @Dannys-mb5xy@Dannys-mb5xy3 жыл бұрын
    • @@Dannys-mb5xy You seem to make sense of it. This channel should do another video about this.

      @VNeto94@VNeto943 жыл бұрын
  • Very interesting and explained in everyday language even I could understand, I'll have to watch out for your other video's. Thanks. :)

    @141sharon270@141sharon2702 жыл бұрын
    • There are also many excellent videos on the subject of cosmology posted on KZhead on the "PBS Space Time" and "Fermilab" channels. You can bring them up searching KZhead by channel name and the word "Cosmology."

      @Dannys-ik1vc@Dannys-ik1vc2 жыл бұрын
  • This has left me with so many questions and possibly reshape everything I thought.

    @davidred1809@davidred18092 жыл бұрын
  • One of my favourite Veritasium videos. This guy has created a new generation of scientists. Glad i came up to this channel a few years ago.

    @basiliskrtzs@basiliskrtzs3 жыл бұрын
  • (please excuse my bad English) so if the universe was infinite you would eventually run into a completely perfect "model" of yourself since this outcome is possible due to the infinite probability of finding yourself (infinite universe = 100% chance of it happening again and again since it has infinite chances). This also means that there is infinite yous out there reading this exact comment at this exact time seeing the exact same things as you and thinking the exact same things. yes no?

    @generaltoast9910@generaltoast99109 жыл бұрын
    • I hope i made sense :P

      @generaltoast9910@generaltoast99109 жыл бұрын
    • Mind=Blown

      @MisterMisky@MisterMisky9 жыл бұрын
    • i had a similar thought and propably my infinte mes too ^^

      @sydanaya@sydanaya9 жыл бұрын
    • there is a finite amount of matter, only space is infinite

      @PerceeP927@PerceeP9279 жыл бұрын
    • how would you know if it has a finite amount of matter? It is infinite after all.

      @generaltoast9910@generaltoast99109 жыл бұрын
  • what a massive mind twisting kinda concept but i LOVE it haha

    @g.waits4gainz205@g.waits4gainz2052 жыл бұрын
  • That was friggin Awesome!

    @dankennedy3365@dankennedy3365 Жыл бұрын
  • I can't even start to comprehend these space stuff....it's just absofukinlutely blowing my mind

    @ebhole@ebhole5 жыл бұрын
    • So funny XD

      @gillianross7225@gillianross72254 жыл бұрын
    • -_-

      @gillianross7225@gillianross72254 жыл бұрын
    • ikede ebhole Laugh *Ps.8:* 3When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; 4What is man, that thou art mindful of him? and the son of man, that thou visitest him? *Ps.104:* 2Who coverest thyself with light as with a garment: who stretchest out the heavens like a curtain? *Jer.10:* 12He hath made the earth by his power, he hath established the world by his wisdom, and hath stretched out the heavens by his discretion. *Isa.42:* 5Thus saith God the LORD, he that created the heavens, and stretched them out; he that spread forth the earth, and that which cometh out of it; he that giveth breath unto the people upon it, and spirit to them that walk therein: *Job.26:* .6Hell is naked before him, and destruction hath no covering. 7He stretcheth out the north over the empty place, and hangeth the earth upon nothing. *Heb.11:* 3Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear. *Isa.45:* 19 I publicly proclaim bold promises. I do not whisper obscurities in some dark corner. I would not have told the people of Israel to seek me if I could not be found. I, the Lord, speak only what is true and declare only what is right. *Isa.43:* 22“But, dear family of Jacob, you refuse to ask for my help. You have grown tired of me, O Israel! 23You have not brought me sheep or goats for burnt offerings. You have not honored me with sacrifices, though I have not burdened and wearied you with requests for grain offerings and frankincense. 24You have not brought me fragrant calamus or pleased me with the fat from sacrifices. Instead, you have burdened me with your sins and wearied me with your faults. 25“I-yes, I alone-will blot out your sins for my own sake and will never think of them again. 26Let us review the situation together, and you can present your case to prove your innocence. 27From the very beginning, your first ancestor sinned against me; all your leaders broke my laws. 28That is why I have disgraced your priests; I have decreed complete destruction for Jacob and shame for Israel.

      @kalifor94everyone2@kalifor94everyone24 жыл бұрын
    • Doesn't anyone realize this sounds insane? Practically, everything in this video is pure nonsense, a fairytale at best. There is not a single proof, everything he talks about is based on some mathematical formulas (concepts), that don't have ANY relation to reality!! Remember, SPACE is NOTHING!! It does NOT exist! Nothing cannot expand nor shrink and only NOTHING (0, zero) can be infinite. Nothing in a real world can be infinite!! If you believe in this nonsense, then tell me how do you create, move, bend or shrink space (nothing)? Space is a concept, it does NOT exist in a material sense, the ONLY thing that exist is MATTER (an atom), nothing else! Space and energy are concepts, they don't exist!! Wake the fuc… up!

      @condor2963@condor29634 жыл бұрын
    • @@condor2963 Please tell me you didn't just say infinity doesn't exist in reality. Reality itself is infinite and you can experience it first hand. Pull yo head outta yo ass

      @icedawggg@icedawggg3 жыл бұрын
  • This video just turned 5 years, time goes by so fast

    @MsMRkv@MsMRkv4 жыл бұрын
    • No it didnt

      @gillianross7225@gillianross72254 жыл бұрын
    • is it the time or us? you know getting older, slower..

      @zulizwan1739@zulizwan17394 жыл бұрын
    • Fernando Velásquez dang it went by like the speed of light ba dom tsssss I’ll leave

      @MoneyIVI@MoneyIVI4 жыл бұрын
  • "that's the thing about infinity; you never run out of it!" Awesome statement...I will be using this!

    @7788Sambaboy@7788Sambaboy Жыл бұрын
  • I have a test tomorrow but apparently this is more important and interesting

    @mathijskracht3805@mathijskracht38052 жыл бұрын
  • Can't wait until the James Webb telescope is up and running.

    @inspectorsteve2287@inspectorsteve22875 жыл бұрын
    • James Charles?

      @gillianross7225@gillianross72254 жыл бұрын
    • @@gillianross7225 no. The guy the telescope is named after is James Edwin Webb. Not sure who James Charles is.

      @inspectorsteve2287@inspectorsteve22874 жыл бұрын
    • Inspector Steve you arent missing out on much if you dont know who he is

      @kablamo9409@kablamo94094 жыл бұрын
    • @@kablamo9409 I looked up who he is when the other person didn't reply. He's some gay guy on Instagram. You're right I'm not missing much. Lol I'm not big fan of social media just KZhead is all I really use. I have Facebook but I don't use it that much. I grew up in the age where you actually talk to people either in person or on the phone so I guess I'm a little old school for not liking social media.

      @inspectorsteve2287@inspectorsteve22874 жыл бұрын
    • @@inspectorsteve2287 ok boomer

      @milkcarton2907@milkcarton29073 жыл бұрын
  • I like the way this guy gets to the meat of a subject and then explains it in an easy to understand way.

    @BladeRunner-td8be@BladeRunner-td8be5 жыл бұрын
    • john noe Laugh *Ps.8:* 3When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; 4What is man, that thou art mindful of him? and the son of man, that thou visitest him? *Ps.104:* 2Who coverest thyself with light as with a garment: who stretchest out the heavens like a curtain? *Jer.10:* 12He hath made the earth by his power, he hath established the world by his wisdom, and hath stretched out the heavens by his discretion. *Isa.42:* 5Thus saith God the LORD, he that created the heavens, and stretched them out; he that spread forth the earth, and that which cometh out of it; he that giveth breath unto the people upon it, and spirit to them that walk therein: *Job.26:* .6Hell is naked before him, and destruction hath no covering. 7He stretcheth out the north over the empty place, and hangeth the earth upon nothing. *Heb.11:* 3Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear. *Isa.45:* 19 I publicly proclaim bold promises. I do not whisper obscurities in some dark corner. I would not have told the people of Israel to seek me if I could not be found. I, the Lord, speak only what is true and declare only what is right. *Isa.43:* 22“But, dear family of Jacob, you refuse to ask for my help. You have grown tired of me, O Israel! 23You have not brought me sheep or goats for burnt offerings. You have not honored me with sacrifices, though I have not burdened and wearied you with requests for grain offerings and frankincense. 24You have not brought me fragrant calamus or pleased me with the fat from sacrifices. Instead, you have burdened me with your sins and wearied me with your faults. 25“I-yes, I alone-will blot out your sins for my own sake and will never think of them again. 26Let us review the situation together, and you can present your case to prove your innocence. 27From the very beginning, your first ancestor sinned against me; all your leaders broke my laws. 28That is why I have disgraced your priests; I have decreed complete destruction for Jacob and shame for Israel.

      @kalifor94everyone2@kalifor94everyone24 жыл бұрын
  • At the end i was like "wtf are u talking about" and "wow" at the same time. Amazing.

    @leojudelopez1872@leojudelopez18722 жыл бұрын
  • This guy should be a stock photo model. Go Derek! My class loves you!

    @markmichalski4351@markmichalski4351 Жыл бұрын
  • Einstein: nothing can travel faster than the speed of light. Universe: Hold my dark energy.

    @baadshahkingofking31@baadshahkingofking314 жыл бұрын
    • Dark Energy: Hold my speed.

      @guitarvibes991@guitarvibes9914 жыл бұрын
    • Dark energy: I am speed

      @diamante8864@diamante88643 жыл бұрын
  • This is my favorite video by you. I love this so much that I come by every few days to rewatch it. You explain things that are so massive so simply and effectively. The last line of this video makes me almost cry all the time. You never run out of infinity.

    @AJD...@AJD...4 жыл бұрын
  • So basically a really well-thought-out and smart way of saying "we still don't know."

    @chickenlittle4344@chickenlittle43442 жыл бұрын
  • Just rewatched. Just as good as the first time.

    @YossiSirote@YossiSirote2 жыл бұрын
  • Good promo for a new brand of beer: "Infinity" you never run out of it!

    @kingrobert1st@kingrobert1st5 жыл бұрын
    • It’s turtles all the way down.

      @SNESrocks@SNESrocks5 жыл бұрын
    • Lol

      @saeedalhomsi5887@saeedalhomsi58875 жыл бұрын
    • You don't run out of beer; beer runs out of you.

      @philipwebb960@philipwebb9604 жыл бұрын
    • I predict a lot of pissed off drunk guys who amazingly...ran out of beer

      @1203scott@1203scott4 жыл бұрын
    • Infinity Beer: when you think you ran out of it another bottle appears from outside the Hubble Sphere.

      @Martinit0@Martinit04 жыл бұрын
  • “Faster than the speed of light” is my safe word.

    @Kataang101@Kataang1015 жыл бұрын
    • I'm a sleeper and Its my trigger word.

      @andrewdewar8159@andrewdewar81595 жыл бұрын
    • That ackward moment when some light sensual roleplay turns into a interregation by a confused cold war era comunist spy

      @kellynolen498@kellynolen4984 жыл бұрын
    • So what are your safe words then?

      @davidfellows1650@davidfellows16504 жыл бұрын
  • What you say in this video just goes to show how mysterious and counterintuitive the universe really is.

    @dcterr1@dcterr12 жыл бұрын
  • You should make a updated video about the finite/infinity of the universe with some new things like the Olbers' paradox.

    @doygo0@doygo02 жыл бұрын
  • Now I understand the difference between "Hubble sphere" and "particle horizon"! Thank you!

    @arash4787@arash47876 жыл бұрын
  • Never talk about infinity. It's depressing.

    @jordanl2317@jordanl23177 жыл бұрын
    • Not as depressing as finitey though

      @GepardenK@GepardenK7 жыл бұрын
    • I get what you're saying. I remember distinctly, when I was 10 years old, reading about proton-proton chain reactions and the triple-alpha process in stellar fusion. This was the first time I had a sense of scale so far beyond my existance that I felt depressed on my bike ride home from the library. I'm over all that now.

      @HollywoodF1@HollywoodF17 жыл бұрын
    • to infinity and beyond !

      @sagasociety2387@sagasociety23877 жыл бұрын
    • it depresses some people, gives some people massive anxiety, it excites some people and enlightens others. I think the way we look at the entire universe says a lot about ourselves tbh

      @UltraViolet666@UltraViolet6667 жыл бұрын
    • HollywoodF1 Oh get off your high horse xD

      @jordanl2317@jordanl23177 жыл бұрын
  • Real question; Do you mean we position ourselves in the center? Within all that expansion, do we travel in the middle? Or in what relation to the center are we? Thanks I love the channel!

    @gaesuy@gaesuy2 жыл бұрын
    • The science of cosmology describes what is called the OBSERVABLE Universe. Since an observer on earth sees the same maximum distance out into space in whatever direction he looks, then the observer on earth is at the center of the Observable Universe BY DEFINITION. That is to say, the Observable Universe is a spherical finite volume of space with the observer on earth at the center. The radius of the Observable Universe is the maximum distance that light has had time to travel within the age of the universe (elapsed time since the big bang.) This radius is calculated to be about 46.5 Billion Light-Years, which makes the diameter of the Observable Universe about 93 Billion Light-Years. The unseen and unseeable universe outside the Observable Universe cannot be observed, but very likely goes on forever in all directions. That is, the TOTAL Universe is very likely mathematically infinite in spatial dimensions, and therefore HAS no center. For more details about the Observable Universe, check out the Wikipedia article titled "Observable Universe."

      @Dannys-ik1vc@Dannys-ik1vc2 жыл бұрын
  • Wow, this actually helped me!

    @midisax@midisax2 жыл бұрын
  • My head often stops working, when i just try to feel the vastness of the universe. ... It is interesting but also scary and disturbing at the same time ... It's a strong strange feeling ... It's like "it can't be true, I'm probably dreaming. "

    @RandoniumTJ@RandoniumTJ3 жыл бұрын
    • Just sleep man

      @grv_agni@grv_agni3 жыл бұрын
    • you oughta read Lovecraft then

      @lotharschmal7991@lotharschmal79912 жыл бұрын
    • Bars

      @Julia-jk4hw@Julia-jk4hw2 жыл бұрын
    • Actually, if the "outside of the universe" may exist. Just if it exists, we can't prove if it exist or not in a scientificly way. He used a conditional: *If* the universe is infinite

      @erdemgunduz3527@erdemgunduz35272 жыл бұрын
    • The Human mind cannot even begin to consider contemplating trying to imagine the vastness of the Universe.

      @waynedarronwalls6468@waynedarronwalls64682 жыл бұрын
  • The behavior of the subject being observed (the universe) is actually improving the functionality of the instrument (Hubble). I don’t think there’s any other circumstance in which that happens. Pretty incredible.

    @ktge5050@ktge50503 жыл бұрын
  • So thanks for shattering what I thought I knew about the Universe and introducing me to a concept I never considered Veritasium. I am gonna have to discuss thisnwith my brother and see which of us cracks first lol.

    @barkstopper7413@barkstopper7413 Жыл бұрын
  • What a fantastic perspective that I did not know existed

    @justindantonio2561@justindantonio25612 жыл бұрын
  • It takes light about eight minutes to reach earth from the sun. From our relativistic perspective on a universal scale, light is glacially slow.

    @MrMaenambeach@MrMaenambeach5 жыл бұрын
    • Lol.. that's 8seconds not minute.

      @devendrapatel197@devendrapatel1975 жыл бұрын
    • @@devendrapatel197 no, its 8 minutes

      @iAlacrity8@iAlacrity85 жыл бұрын
    • KZhead Addicted it’s 8 minutes bro

      @tylerjohnson3728@tylerjohnson37285 жыл бұрын
    • That means there should be speed faster than speed of light 😫😫

      @biosilica@biosilica5 жыл бұрын
    • Adnan Raza there is. The universe can and does expand faster than light

      @tylerjohnson3728@tylerjohnson37285 жыл бұрын
  • thanks for the existential crisis

    @MaximilianDenisPatrickPonsonby@MaximilianDenisPatrickPonsonby7 жыл бұрын
    • Just look up. How else could this have gotten here? The answer is right in front of everyone's face, it's just whether we choose to accept it or not.

      @chrisc3825@chrisc38256 жыл бұрын
    • Watch Kurzgesagt, He gives existential crises X10

      @noahbych9018@noahbych90184 жыл бұрын
  • there is no time the universe is now and has been forever all at once, perfectly containing everything

    @101retspoons@101retspoons2 жыл бұрын
  • Very brilliant analysis. It seems we know only very little and have no idea what is happening. We are making theories only by looking at tiny bits of light. What is space? I don't think it is possible to comprehend Infinity.

    @kapeesh7523@kapeesh75232 жыл бұрын
  • That's the thing about infinity, you never run out of it.

    @kenttm42@kenttm424 жыл бұрын
    • I was just reading your comment when he said the line It was actually like he translated my thoughts

      @atripathi7063@atripathi70633 жыл бұрын
  • I just have more questions now.

    @mikehattias5837@mikehattias58378 жыл бұрын
    • Lol same, really confused now.

      @mohamedraafi_@mohamedraafi_7 жыл бұрын
    • science never answers a question without creating 10 more

      @a006delta@a006delta7 жыл бұрын
    • The Random Ausy Haha true, Asking questions and seeking knowledge is what results at success.

      @mohamedraafi_@mohamedraafi_7 жыл бұрын
    • good

      @grr194302727385@grr1943027273857 жыл бұрын
    • +Mohamed Raafi Yusuff search quran. my local mullah says everything including all the mathematics and physics is already there in quran. not kidding, he claims it.

      @MrAmitkr007@MrAmitkr0077 жыл бұрын
  • Every time I watch a video from this channel, I am certain that my brain is expanding faster than the speed of light!

    @visualizecreate2530@visualizecreate25309 ай бұрын
  • If one travels faster than the speed of light then you overcome time right ? So you actually go further than the original sun rays which left the sun and in essence you watch the solar system how it was from the beginning of time while you r watching it from some other point in space away from this solar system or galaxy ? Secondly travelling through worm holes and going back in time or forward. Could that be possible really ? is there any method to identify worm holes in space ?

    @81179venky@81179venky2 жыл бұрын
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