TRUE Limits Of Humanity - The Final Border We Will Never Cross

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The original Limits of Humanity:

Is there a border we will never cross? Are there places we will never reach, no matter how hard we try? It turns out, there are. Even with sci-fi technology, we are trapped in a limited pocket of the Universe and the finite stuff within it. How much universe is there for us and how far can we go?

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  • Hey Everybody! So this video is a remake and remaster of an older video that has a mistake in it. You can watch the original here: What is the mistake? In a nutshell: In the original video we said that it was PHYSICALLY impossible to leave the local group and reach other galaxy groups. That the rest of the universe is moving away from us too fast to catch up. But that’s wrong. It is not PHYSICALLY impossible to leave the Local Group, just extremely unlikely that we’ll ever do it. BUT: If you have a lot of time and a fast spaceship you can still get to a limited amount of galaxies - these galaxies will eventually get out of reach forever but until then, they are technically within reach. So why did we keep the video up and didn’t purge it when we deleted our addiction and refugee crisis videos? Well, it has to do with the nature and severity of the mistake: We did talk to a few astrophysicists to ask them what they thought and if we should take down the video. Their feedback was pretty clear, they thought it was still fine as the universe expansion things explained in the video are correct and they didn’t consider the local group thing as too major. This was actually a case of “good enough”. Also, back when this original upload happened, Kurzgesagt was operating at pretty tight margins and just redoing a video was not easy for us. Back then the team was small and we were fighting to put new videos out. So we just swallowed the bitter pill and kept the video around. But the video still bothered us, as far as we know this was the biggest unfixed mistake on the channel. Super frustrating, especially because the core idea of the video is so fascinating. The limit of our species. The actual limit. So yeah, we finally remade the video, sorry for taking this long, life got in the way. The original video will stay up, you can compare the two if you want to see how far we have come in a few years in terms of production quality. All in all, we could only grow the channel and work on getting better because of direct support from you guys. So thank you for that. - Philipp PS: If you want, check out our shop for some new posters about the universe posters and black hole plushies and stuff like that:

    Kurzgesagt – In a NutshellKurzgesagt – In a NutshellPrieš mėn
    • This gave me a scary thought.... what if the galaxy we are in and why there isnt alien activity or federation to meet is simply that we possibly are in such a young galaxy and being so far in the edge of it we are truely alone.

      Antton KantolaAntton KantolaPrieš 4 dienas
    • yea me and my class at school watch your interesting videos and we enjoy them especially my teacher LOL

      Fire HarryFire HarryPrieš 9 dienų
    • If we look at space through the eyes of science? We will never understand the meanings and true origins. We are all source beings that were all created at the beginning, and we have have live countless lives. You are connected to everything in the universe and soon enough those who recognize their true nature will be able to connect with all of the beings in the universes. How? We are already connected, we are all one. Look at the spiritual side of the universe. It may lead you into a place of better understanding and less speculation by ‘science.’ Just a thought Love to all❤️

      Darren MarquisDarren MarquisPrieš 19 dienų
    • The good news is that by the time this event horizon is past its very possible that interstellar travel will be possible

      I’mActually Not a furryI’mActually Not a furryPrieš 19 dienų
    • You said via scifi technology... so a quantum entanglement teleportation system... travel the universe in all of 30 seconds...

      Ba'al's BastardsBa'al's BastardsPrieš 24 dienas
  • 5th time watching this I have a problem

    Fred the FrogFred the FrogPrieš 17 minučių
  • We humans have tons of ambition and desire like we haven't even traveled to the nearest star; but yet get an external crises over not being able to travel the whole observable universe

    Erik ResendizErik ResendizPrieš val
  • Those that mean there like afterimages but longer?

    Mr MMr MPrieš val
  • People always say never, and then it turns out theres a way around the problem. We didnt become telephatic, but we invented radio and mobile phones. And so on.

    Fredrik SvärdFredrik SvärdPrieš val
  • I hope you're wrong again, even with this video 😉

    ackorolandackorolandPrieš val
  • So we're trapped, and "real freedom is therefore also impossible". Darn the universe for the imprisonment it's making us all suffer!!

    PhilPhilPrieš 2 val
  • The limping soccer rheologically prevent because mayonnaise customarily remain besides a maniacal colony. yielding, thick dust

    Super GogetaSuper GogetaPrieš 2 val
  • 🙏🏻🎁

    Jonathan DAnjouJonathan DAnjouPrieš 2 val
  • This videos are amazing!

    benjak Jarabenjak JaraPrieš 3 val
  • are we moving?

    CEF MotionCEF MotionPrieš 4 val
  • what would happen if a giant planet bigger than Jupiter would come in contact with a small black hole? or if the biggest thing in the universe( maybe a star) came in contact? also what if 2 black holes meet or if it began in the asteroid belt or a white hole black hole and worm hole meet?

    urvax sahukarurvax sahukarPrieš 4 val
  • People still think we went to the moon.... Hilarous

    no just nono just noPrieš 5 val
  • Me: WTF it's not fair that we'll never reach these celestial bodies Also me: I want a snack but I'm too lazy to walk two blocks to the 7-11

    Matthew PeiferMatthew PeiferPrieš 6 val
  • What if we arent in the center of our univers but at the edge.

    Maurice KnechtleMaurice KnechtlePrieš 6 val
  • The jumpy scallion surely change because copy neurochemically influence times a zesty bear. toothsome, hateful ramie

    A Legendary Soccer LifeA Legendary Soccer LifePrieš 6 val
  • people living on those far off galaxies can still see dinosaurs on earth! cool!

    mustafa syedmustafa syedPrieš 7 val
  • physics in 20th century - magic doesn't exist , there must be some science behind it. physics in 21st century - science doesn't exist, there must be some magic behind it

    mustafa syedmustafa syedPrieš 7 val
  • Existential crisis somewhat relieved by the beautiful, colorful graphics and great narration...

    alborada777alborada777Prieš 7 val
  • it's so funny how they think they could discover the big bang with there technology

    Nabil HONabil HOPrieš 7 val
  • i like to think of it as a vacuum cleaner but a hologram is there to show where the dust originally was

    The Unofficial StrikeYTThe Unofficial StrikeYTPrieš 7 val
  • This video only shows how small and insignificant human civilization is, its like grain of sand in Sahara desert, that happened by small chance or mistake, can easily be erased and means literally zero in grand scheme of things. Out life doesnt matter at all in cosmic scale, we will never be able to know and understand even tiny fraction of it, and concepts of god invented by humans are worthless and funny.

    ReadyAimFireReadyAimFirePrieš 8 val
  • So if we are Aliens we can see ourself billions years ago in universy with a telescop

    fatbianko islamajfatbianko islamajPrieš 10 val
  • The holly Quran said: "The creation of the heavens and the earth is indeed greater than the creation of mankind, yet most of mankind know not."

    Mahmoud SamirMahmoud SamirPrieš 10 val
  • So one day humanity will not see the moon… and the earth will also be out of the local group? So it means humanity can re visit those things that were removed. Eerie

    Natural AviatorNatural AviatorPrieš 10 val
  • im scared now

    Michael GroatMichael GroatPrieš 10 val
  • This video has lots of mistakes in it.

    NO ADSNO ADSPrieš 10 val
  • The real limit is time, even if every person on the planet visited thousands of planets every day, it'd still take thousands of years to visit a meaningful amount of them.

    AlexanderAlexanderPrieš 10 val
  • Can

    Sports of FameSports of FamePrieš 10 val
  • 😭😭😭😭😭

    abdi libaaxabdi libaaxPrieš 11 val
  • what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ???

    Parth ManavParth ManavPrieš 11 val
  • what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ??? what will happen if the same asteroid were to strike earth again, in 2021 or so ???

    Parth ManavParth ManavPrieš 11 val
  • "Never interact with it again?" What about quantum entanglement or wormholes? This phylosophical video should be more neutral e.g. From these various studies it is unlikely to occur. It's ridiculous to say ''never or impossible'' about information we barely have a grasp on. We can't even say it about information that we do have a grasp on...

    JederationJederationPrieš 11 val
    • Wormholes are an actual possibility, but quantum entanglement is absolutely useless both to travel and to transmit information.

      Panagiotis MagosPanagiotis MagosPrieš 6 val
  • 1:16 it isn't amogus, it isn't amogus, it isn't amogus, IT ISN'T AMOGUS, IT ISN'T AMOGUS

    Tanishq MahalathkarTanishq MahalathkarPrieš 12 val
  • Really makes you think how our problems are so small and insignificant

    hackerflo lolhackerflo lolPrieš 12 val
  • For me as a gamer with 100% achievement unlock approach, this is really....unsatisfying

    Sack FuSack FuPrieš 12 val
  • This kinda makes u think, if ur doin what u think is right...kinda scary tho

    ぶるぶるPrieš 13 val
  • " Humans cant go beyong a certain limit " Spirituality : Let me introduce myself

    chips_vischips_visPrieš 14 val
  • Covid19 exits on Earth The universe : aight im not gon risk it and proceeds to social distancing

    chips_vischips_visPrieš 14 val
  • This is so sad. 😭

    James SmithJames SmithPrieš 14 val
  • Future generations will know about other galaxies, still, because we will write it all down for them to study. One day humans will be so advance, they will travel to these unreachable galaxies that we once thought we could never reach, and maybe even travel to other universes.

    BluBluPrieš 14 val
  • i can ưatch thí evẻy day

    Jids LỷicJids LỷicPrieš 14 val
  • i fun i love it

    Jids LỷicJids LỷicPrieš 14 val
  • I have a question: "how to destroy the univers" you say, that one theorie is, that at one point, the universe expand faster than the speed of light. at this point nothing can be hold together anymore and the universe will die. In this video you say, that beyond that "horizon" everything is faster than the speed of light (relativ to us). Shouldnt colapse the universe at this point allready, or do i make a make a mistake in reasoning? Or does that means, that we just cant catch up that part, because its as fast as we and we can only (in theory) travel with the speed of light?

    AsuanoAsuanoPrieš 14 val
  • So….where are we in relation to moving towards this observable ‘event horizon’ and how do we know we’re not sitting in it right now looking back at everything?

    4ever_s4turd4y_4ever_s4turd4y_Prieš 15 val
  • Umm the Milky way's diameter is ~100,000 light years and not 200,000. Please check your facts before releasing such videos.

    Piyush GulatiPiyush GulatiPrieš 15 val
  • Kurzgesagt, after I’ve watched half of the video, can we assume that we are living in a “black hole”? Just like you said in the video, there is an event horizon, we can’t go places etc. Maybe you can make a video about that :)

    Dragon DesignDragon DesignPrieš 15 val
  • The idea of a future observer looking into the night sky and seeing nothing, not knowing of anything that we know today is terrifying; just a static eternal and singular galaxy as the entire universe. Because that very well may mean that we know nothing from what we would have known billions of years ago had we the technology to know what we know now. What makes us think that we even understand what we see when we look up at night now? We know nothing.

    Call Me MarkCall Me MarkPrieš 15 val
  • Gys how they mad musik so good like this?

    Radmehr AfrouzRadmehr AfrouzPrieš 16 val
  • I watch these vids to go to bed not have anxiety attacks.

    Stinky BumStinky BumPrieš 16 val
  • The big bang theory isn't called theory for nothing !

    netsrac cjfnetsrac cjfPrieš 16 val
    • In science, word theory is not used like in every day life. Theory is something that is very well backed up by evidences. That's why we still say for evolution "theory of evolution", even tho we are pretty sure it's correct.

      Mihajlo SreckovicMihajlo SreckovicPrieš 12 val
  • Summery: Minecraft

    3Dot .3Dot .Prieš 18 val
  • I can think of a way - wormholes! If they exist, we can go from point a to point b faster than the speed of light. It's still theoretical though, but i think it can be done

    Rajveer BajajRajveer BajajPrieš 18 val
  • Wait wait wait, we came from a huge Big Bang right. And we exploded into many different things and stuff like that, well we learned how to open the nucleus of an atom and that makes a Big Bang. So we are actually a tiny atom in a different world that sees us as we see atoms

    jjj ojjj oPrieš 18 val
  • What baffles me more is that some people will never accept the fact that there is a possibility of other life forms in the vast universe that we live in.

    Alone -_Alone -_Prieš 18 val
  • because of course our local group is the center of universe, and no other groups will merge and explode out then sending more groups back in our direction

    Kynan WilliamsKynan WilliamsPrieš 19 val
  • The rough patio yearly nod because nose supply tease about a simple mexico. dramatic, jagged freezer

    NEW KICKZNEW KICKZPrieš 19 val
  • I'm thinking this video is a wee bit early. Maybe reupload once we colonize one of Neptune's satellites? Also, if 3 stars are born per year, how many run out of fuel and fizzle out? How can you even prove it considering how vast our own galaxy is? Isn't the entirety of the all the mass of the celestial bodies in our star system only equal to like .00001% of the Milky Way? And you're trying to bum people out using concepts we will never truly understand. The universe has been around for billions of years. Humans? Thousands. Most people know and understand that being a mathematical genius isn't required to know that the universe if far too big and obscure to reach any kind of conclusion other than it will be around long after we are history.

    ulibarriLulibarriLPrieš 20 val
  • teleportation like the event horizon is very possible..ship can go anywhere what humans can not see...

    IVAN NEGA (DR. NEGA J. P.)IVAN NEGA (DR. NEGA J. P.)Prieš 21 val
  • Most of this is guessing they really don't know anything.

    Cliff CartyCliff CartyPrieš 21 val
  • 09:06 We got a Cowboy Bebop fan on the channel. Spike’s Swordfish starship.

    Spectrum The Video GameSpectrum The Video GamePrieš 22 val
  • Feel like suffocation :/

    Okan UgurluOkan UgurluPrieš 23 val
  • Why would a being in the far future think hes alone in the universe? We write down history... We always act like things are going to be forgotten but thats very unlikely now

    Prof. ScheereProf. ScheerePrieš dieną
  • but actually no one knows did big bang ever happend or how big is universe or is there universe? that is just teories that someone made up and made whole world to beileve in.. just think what is actually there..

    Dusan KovacevicDusan KovacevicPrieš dieną
  • we have limits we may never cross with our current technology or future technology we can foresee, but to seek the answers we wish for, maybe we should start asking different questions. "um die Antwort zu kennen, müssen Sie zuerst die Frage kennen"

    Marina ArmstrongMarina ArmstrongPrieš dieną
  • Holy Moses”Milk-Dromeda” is terrible. Who chose that? Who got to decide the name, picked that atrocity, and was still allowed to keep their job afterwards?

    Silvus SolSilvus SolPrieš dieną
  • In the future we are gonna learn how just as how- we thought they wouldnt know a thing about big bang - they are gonna look back at us as primitive apes nd find a way to travel through black holes, teleport via dark energy and make it to distances we cant make if we turned on a ship and blasted off into nothing outward, instead of going into black holes and using quantum style tech we can possibly not even fully imagine. But thats just my idea of whats possible ofc. h3h3 Tc Everyone. Luv.All.. Star Out!

    Twitch_StarLord_Twitch_StarLord_Prieš dieną
  • Every time I go down one of these rabbit holes, I inevitably ask myself, “why wear pants anymore?? It doesn’t really matter anyways” I’m still wearing them consistently but who knows, maybe one day…

    Matt TannerMatt TannerPrieš dieną
    • come join us. leave behind pants.

      FlippityFlopFlippityFlopPrieš 8 val
  • Welp just had an existential crisis

    503rd Heavy Panzer Battalion503rd Heavy Panzer BattalionPrieš dieną
  • So how big is it actually?

    DarknesskillerDarknesskillerPrieš dieną
  • The thing is, with potential applications of quantum communications, there might be no need to physically travel such a distance. We know that two entangled particles are capable of communicating instantaneously over perhaps indefinite physical distances. Even if you needed to physically travel to such a location, from what we currently know about space-time, there might be some way of traversing vast distances quickly through non-conventional means. Scientific development is almost exponential in terms of how quickly advancements can be made on the back of prior knowledge. Thirty years ago we had barely achieved handheld mobile communications and open internet access. Now we have potential options for FTL communications, quantum computing (which is BIG in terms of computational speed etc), and a data-sphere you can access instantly from a handheld device (almost) anywhere on the planet. Give it a few years, a decade or two, and this limit will likely be less of a concern.

    Oli DROli DRPrieš dieną
    • Millennium falcon tech, where we can go interstellar travel.

      Akaza SevenAkaza SevenPrieš 2 val
  • Hiç mi Türk yok (is there not a Turkish)

    WOLF BSWOLF BSPrieš dieną
  • Well that didn't truly ruin my day at all...

    artke asftartke asftPrieš dieną
  • 9:06 See you, space cowboy ~

    Miles McCoyMiles McCoyPrieš dieną
  • This made me kinda sad

    ProfessorProfessorPrieš dieną
  • So glad you took the time to make a quality update!

    NoNoPrieš dieną
  • On the contrary to many people in comments I am very optimistic. Just as said in the end of the video, we are SO LUCKY to be able to see near beginning of the universe.

    runchao Lirunchao LiPrieš dieną
  • bro this shit is plagerism from real life lore's video

    OuynxOuynxPrieš dieną
  • This is the most depressing thing ever :C

  • if everything is expanding far away from each other, why we will be able to reach Andromeda in very, distant, future?

    UnknownMaster21UnknownMaster21Prieš dieną
  • existential crisis kicking in

    Insert a CoinInsert a CoinPrieš dieną
  • these videos are entertaining to watch, but the thought of travelling extremely far out to other planets or galaxies that are getting further and further away from us at increasing speeds slightly makes me scared of travelling to these places, as you'd pretty easily be able to get completely separated from your friends, family, and almost the entirety of the human civilization if you visited one of these places at the wrong time. Fortunately, pretty much none of us here will live long enough to make it to a point in which we have the technology to reach these far out locations, and by the time the technology is made there would likely be barely any galaxies left that could be visited

    Also WoomyismAlso WoomyismPrieš dieną
  • These are the kind of topics that I want to talk about while stargazing at the night sky with a friend or a loved one

    Kenny RamosKenny RamosPrieš dieną
  • now for more stress that i didn't need

    KitFire.KitFire.Prieš dieną
  • should I be scared? O-O

    Meme GuyMeme GuyPrieš dieną
  • If a being in the far future in Milkdromeda won't be able to see past their galaxy and learn about the big bang through cosmic background radiation; similarly we could right now be at a point where fundamental knowledge of the universe is not detectable anymore.

    LookzALookzAPrieš dieną
  • oh ive been past it very fun full of things we mortals could never achieve 😪

  • This doesn't make me sad just surprised at how these videos teach better than school

    ye yeye yePrieš dieną
  • Why is the universe such an asshole?

    Konstantinos KalavrezosKonstantinos KalavrezosPrieš dieną
  • Why does this scare me, but I keep watching

    Kieran OberhansliKieran OberhansliPrieš dieną
  • Yeah, i know my girlfriend already told me how small I am.

    Eddie OrlyEddie OrlyPrieš dieną
  • I don’t know but I feel that this video really questions the human’s existence here in the world as if we are just an illusion and celestial beings such as aliens are the ones who rule their lives, like they own the universe....that would be creepy.

    inv isibleinv isiblePrieš dieną
  • We don’t need those other galaxies anyway. Let them go.

    Ledya vtwentyLedya vtwentyPrieš dieną
  • In 1985 I wondered if it were possible to teach special relativity to kids. No-one I asked thought so. Now general relativity is explained to high schoolers.

    ila1964ila1964Prieš dieną
  • Do we “know” anything today or do we only think we do?

    NotGeoNotGeoPrieš dieną
  • I find it a bit weird they don't put up their videos in 4k since the graphics is all vector anyway.

    jimvonmoonjimvonmoonPrieš dieną
  • Modest correction to video beginning about 4:20. The cosmic horizon is *not* necessarily where the recession velocity exceeds the speed of light, though it can be depending on the makeup of the universe (matter, radius, dark energy, etc...). That boundary specifically is instead the Hubble radius defined by r=c/H. Because our universe is not just dark energy, but still has a significant enough matter density, there are still galaxies who are already receding faster-than-light, but whose contemporary light emitted today will still reach us in the far future. In fact many of the objects we see today have *always* been receding faster-than-light and were never within our Hubble sphere, but are none-the-less still visible and will be visible for quite some time. As an example: The cosmic microwave background "surface-of-last-scattering" is currently receding away from us at 3.2c with a redshift of z~1,100. But when those photons were emitted, that same location was receding away from us at over 58c over 13 billion years ago. Any objects on that sphere have then always been receding faster-than-light from us despite their visibility.

    CosmologicalDefectCosmologicalDefectPrieš dieną
  • When the Big Bang happened, did it consider the possibility that it would one day create a tiny rock populated by sentient beings trying to study it and make sense of it?

    SadlittletrollSadlittletrollPrieš dieną
    • Considering that the big bang was literally everything, so... we are technically all the singularity, somewhat- it had the atoms that would one day be Hitler, but also all the people he murdered, because of the law of conservation of matter, then, if it had been sentient... I guess it might know.

       Prieš dieną
  • Cap there’s no limit😈

    Elliot RichardsonElliot RichardsonPrieš dieną
  • Science fiction now has a big emphasis in *Fiction*

    Temper StarTemper StarPrieš dieną