Why Alien Life Would be our Doom - The Great Filter

  • Published on Feb 1, 2018
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    Finding alien life on a distant planet would be amazing news - or would it? If we are not the only intelligent life in the universe, this probably means our days are numbered and doom is certain.

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    Why Alien Life Would be our Doom - The Great Filter

Comments • 30 132

  • Kurzgesagt – In a Nutshell
    Kurzgesagt – In a Nutshell  11 months ago +3945

    Thanks a lot to Brilliant.org for supporting this video! Support Kurzgesagt and be one of the first 688 people to sign up with this link to get 20% off their annual membership! brilliant.org/nutshell/

  • I.S. Swinburne
    I.S. Swinburne Day ago

    Well, Kurzgesagt blows it... shocking!

  • joe caterman
    joe caterman Day ago

    1:06 - actually this was the hardest step... all the rest happened really quickly, even intelligence. And life appear on earth super, super fast! Like as soon as it cooled down.

  • M Nunis
    M Nunis Day ago

    Likes - People who don't think 100% logically
    Dislikes - People who see the error in their logic (or just people who hate him)

  • DeMaxize
    DeMaxize Day ago +2

    First of all , if we haven't found intelligent life , it doesn't mean that there is none ( over even few ) . But lets presume that .
    So basically speaking we must conclude that there is some great filter since we have not observed any signs of intelligent life , therefore if we get any sign of intelligent life we are probably behind that filter .
    But here's the problem , if we do discover outer space life , doesn't it mean that perhaps there is no such thing as a great filter to begin with ? ( since we "made up" the great filter concept based on lack of outer life )

  • Junior Rocha
    Junior Rocha Day ago

    I think it's extremely stupid and arrogant of us to believe that in all the infinity of universe all kinds of life would need water to exist. There must be planets where they don't even know what water is. In others, water is probably as dangerous as fire to their lifeforms. Don't forget the universe is infinite and we only know about a few billion stars and planets. The possibilities are endless.

  • Virus Virus
    Virus Virus Day ago

    The answer to this is Cthulhu we just trapped him lol jk this doesn't even make sense

  • Virus Virus
    Virus Virus Day ago

    "Why would something exciting be bad" Well it's called morbid curiosity so yeah then darn morbid earthlings 😄


    we came, we saw, we built a pyramid, we left.

  • Solitary Wolf
    Solitary Wolf 2 days ago

    What if all advanced life forms just managed to access different dimensions and thus made interplanetary exploration redundant?

  • kriolan reddy
    kriolan reddy 2 days ago

    Awesome video

  • niknatural
    niknatural 2 days ago +2

    *It's also possible we are living in a highly computerized matrix system that presents a "false reality", and that in some scope or form, there is another reality covered by the curtain of this one. Maybe that's the real thing where highly intelligent beings exist and they are somehow watching us from it, while we are living in this "fake show" of some sort. That would also mean that space isn't real nor are any other planets. Just a theory, not saying it's right!*

  • niknatural
    niknatural 2 days ago +1


  • Le Tigre
    Le Tigre 2 days ago

    I think that we don't find E.T. life because it don't want to be find : just by studying the human behavior, the wars, genocides etc...they would surely be afraid of us and make everything they can to avoid our contact.
    From this, two options are possible : 1) If they think like us, they could try to kill us to avoid any danger from us, so it might be our "great filter" in the future. (We can even think that the dinosaurs were intelligent enough to be fearful and have being destroyed by E.T.s ;) ) 2) They have musch more good morality and empathy than us, so even if they are afraid by us, they won't try to destroy us (unitl we became too powerful maybe?).
    A third possibility is that all the intelligent lifes have already emerged and achieved discovering technologies to travel outside our universe, because thay saw that it would be one day unlivable.
    This subject is very interesting because almost all hypothesis can be true, and there is a lot of hypothesis if we have imagination.
    What are yours?

    PS: My english may be not perfect, I'm french and I'm not fluent in it. Sorry for hurting this beautiful language :)

  • brunol97 117
    brunol97 117 2 days ago +1

    so .... Reapers

  • SimplyLeftUp
    SimplyLeftUp 2 days ago

    The way I see it the only reason alien lifeforms haven't interacted with the planet is because there's no reason to. Humans are unintelligent creatures that live towards self destruction. Slowly killing themselves off for luxuries. In the aliens of a potentially highly intelligent species what good would come from landing here? We're useless and we probably don't even hold a fraction of the capabilities they do. We wouldn't be good for war, we wouldn't be good as slaves because we're so inefficient. It's truly like what do we have to offer a species tens to hundreds of times more intelligent than us? The way I say it, ants to us is us to an alien. It's like...I could squash you but what would I truly gain?

  • Kevin Haynes
    Kevin Haynes 2 days ago

    Wait, what!? If the filter is behind us, it wasn't always behind us, and we self-evidently survived it. So if the filter is ahead of us, well, we can survive filters being ahead of us!!!

  • junkies1111
    junkies1111 2 days ago

    The only threat to human kind is human kind...the human race can never agree and see the bigger picture.

  • Done4s
    Done4s 2 days ago

    What makes us think we would get along with aliens if we cant even get along with other countries smh 🤨

  • Done4s
    Done4s 2 days ago

    There is no way in hell we are 1 in 500 billion no way there is alien life and they are waiting to tell us

  • George Vazquez
    George Vazquez 3 days ago

    Or the great filter is.....the speed of light can not be over come. Hard to spread out when you can't spread to all corners because of the ginormous distances. We've only been broadcasting radio waves into space for what 80 years? The Milky way is 100,000 light years across. So the majority of the space inside the milky way galaxy isn't aware of our presence.

  • Bobby Silver
    Bobby Silver 3 days ago +1

    We have each of us lived millions of past lives on countless other planets than Earth.

  • AVSbeats
    AVSbeats 3 days ago

    Lmao don’t want to see a video that’s from your expectations 😂 GTFOH

  • Jeffrey Shelton
    Jeffrey Shelton 3 days ago

    this video doesn't take into account the vastness of space and that it takes light huge amounts of time to go from place to place. our own radio broadcasts have only traveled 80 light years or so. also it is unlikely that aliens would use or rely on such dated tech. for all we know alien transmissions are all around us and we simply don't have the tech to hear them.

  • MessserJack
    MessserJack 3 days ago

    was ist das für ein bullshit video

  • MyLifeInVideos
    MyLifeInVideos 3 days ago

    I am the new Justin Y. I bet I have commented on more videos then him dude

  • MysticFX
    MysticFX 3 days ago

    Papaplatte? ^^

  • Aspiring Marauder
    Aspiring Marauder 3 days ago

    Okay, so just Hawking's EVIL LAIEN COLONIALISM theory, but worded fancier.
    Great fucking video.
    Just completely forget about the empathy and cooperation across boundaries needed to reach space in the first place.

  • StrawberryNinja Nibbles

    Clicked cuz the thumbnail so pretty

  • The_Right_Nut _
    The_Right_Nut _ 3 days ago

    Currency will be our doom

  • レイ·ライト -Raylight

    I think it's the Reaper guys, if they think we're ready enough to be consumed they'll come for us
    Better get ready to learn biotic abilities and defend ourselves xD

  • Slender Man
    Slender Man 3 days ago +1

    No need for this video as there like 1000 movies why it’s bad LMAO

  • C Opp
    C Opp 3 days ago

    Thank you for informing us all about this cool, helpful website!

  • Mike G
    Mike G 3 days ago

    This doesn't matter for us. We'll all be dead within a hundred years anyways.

  • zn1ckz8558
    zn1ckz8558 3 days ago

    The universe is a battle royale

  • Ann Mendoza
    Ann Mendoza 4 days ago

    Aliens wouldnt even bother us. They are just watching us destroying our own planet. Were already doing some other type of aliens work.

  • Vogel Account
    Vogel Account 4 days ago

    Becoming the dominant life form does not mean that dominant life form is intelligent. It merely means that dominant life form is better than the other life forms around to such a degree that the other life forms cannot stop it. Dinosaurs are the classic example. They were the dominant life forms. No doubt about that. However, because they were strong, nothing could stop them, and they dominated for 100s of millions of years. The galaxy may very well be filled with planets populated by extremely strong, resilient animals that do not need intelligence to achieve and retain their dominance.

  • King Fedora
    King Fedora 4 days ago

    Let's hope the great filter is not like the one in Dead Space, cause then we are screwed

  • FennecTECH
    FennecTECH 4 days ago

    I think the great filter is the vast distances between stars

  • Poke ́
    Poke ́ 4 days ago

    Intelligence is the one thing

  • GoldenDogs445
    GoldenDogs445 4 days ago

    so lonely

  • Retro Man 88
    Retro Man 88 4 days ago

    Or alien life lives in the 4th, or 5th dimension. Another possibility

  • James Wicks
    James Wicks 4 days ago

    It could be that they are hiding and letting us develop on our own

  • John Lee Clemmer
    John Lee Clemmer 4 days ago

    For those hungering for more about this, check out the Isaac Arthur series on "The Great Filters".

  • P O T A T O P L A Y Z P U B G

    0:30 thats oxygen

  • Abhishek Bagri
    Abhishek Bagri 4 days ago

    You fear of aliens

  • Gautham Raj
    Gautham Raj 4 days ago

    Literally, the stupidest thing I have ever heard

    • Gautham Raj
      Gautham Raj 2 days ago

      +Hm Grraarrpffrzz Thanks i like them too ,thinking of cutting down a bit words what do u say?

    • Hm Grraarrpffrzz
      Hm Grraarrpffrzz 2 days ago +1

      I like all your rational arguments.

    NEON WARRIOR 4 days ago

    Maybe there are multiple great filters

  • xpq881
    xpq881 4 days ago

    6:49 is the most probable thing that will happen

  • faiz Yoda
    faiz Yoda 4 days ago

    There be alien life or some sort of species soon in 2067 on mars and other planet witch may be a apocalypse for us but new species are not here although nasa found some life on 1 light year away it 312208dVf planet it harmless we could adapt to it but it impossible. the better you know☺️

  • Tobiasz Czarnota
    Tobiasz Czarnota 4 days ago

    Let's all hope that the scenario where the filter is behind us is true.

  • Ionut Alexandru Parau

    Life can be everywere [even in a star (made out of energy to survive the star's hotness)], however, they might be too scared, too week, or they just know how boring are the human's and that human's use 5% of the're brains

  • Christian Schuster
    Christian Schuster 4 days ago

    wäre es nicht, denn dann gebs auch die 7 Dragonballs xD
    ...wollte schon immer ein hochwissenschaftliche Erklärung abgeben *hust*

  • everton amarilla
    everton amarilla 4 days ago

    "if there were physical limits, the universe would not exist" .....author: Me

  • cass c
    cass c 4 days ago

    why couldn't there be numerous challenges/ filters, as opposed to 1 great filter?

  • Animation Space
    Animation Space 4 days ago

    R.I.P the Orionians - 6:14

  • xXShadow DeathXx
    xXShadow DeathXx 5 days ago

    you know, what if we are all just living in a cell, part of something even bigger?

  • NeverBGamedOut
    NeverBGamedOut 5 days ago

    What if the great filter is because of the great filter and the knowledge it brings. And it causes disparities

  • Maple Fish Team
    Maple Fish Team 5 days ago


  • Dakota Stein
    Dakota Stein 5 days ago

    it would only be alarming if we only found remnants of DEAD civilizations,if we found live thriving civilizations that would be a completely different story.

  • Maestrul Gamer
    Maestrul Gamer 5 days ago

    the great filter=all the stupidity from the politics

  • rohan venkatesh
    rohan venkatesh 5 days ago

    Click this button if it's blue

  • X • e • e •XD ッ

    8:19 thats me when I talk to someone

  • P.C.P
    P.C.P 5 days ago

    The Final Filter : Heat Death.

  • vishwesh rajurkar
    vishwesh rajurkar 5 days ago

    this reality sucks!

  • Sepp
    Sepp 5 days ago

    The mere fact a universal dilemma is looked into from a galactic scale makes your assumption seriously flawed. What if intelligent species (as in interstellar species) were only present in the ratio of one per single galaxy, on average? Or one every ten galaxies, or per galactic cluster, for all that matters. That would still mean there's potentially billions of them throughout the universe. There, I've just proven your conclusions completely wrong. Also remember, the pretension to make final statements is what gave birth to religions, while we're supposed to be men of science here.

  • DoctorDisco [SweetTv]

    Time to purge this race who spoil life

  • Vijaya Govinda
    Vijaya Govinda 5 days ago

    I bet we are not alone

  • Nicky Mejias
    Nicky Mejias 5 days ago

    aleins might be friendly or not and might have tenoyogoly to cure diseases.

  • Nicky Mejias
    Nicky Mejias 5 days ago

    no alien life might be good mars have life and uranso might not have an ocean.

  • Lucky Stroke
    Lucky Stroke 5 days ago

    Or perhaps interstellar travel Star trek/wars style is physically impossible and civilizations in different planets rise and fall without ever knowing others exist.

  • dantopper123
    dantopper123 5 days ago

    Ok one thing i dont understand is this, why would anyone assume that if alien life did come to earth that its for malicious purpose? Just like the human race having its "good" and "bad" im sure there is just as much diversity in other possible intergalactic civilizations. Independence day and other alien overlord movies may not be so accurate and science fiction only pointing to evil aliens destroying earth. There are literally thousands if not millions of other solar systems in the galaxy. For something to travel billions of light years just for the singular purpose to annihilate us does seem a little farfetched. But we wont truly know the intent of any alien civilization untill that day comes. Either they teach us to thrive and advance us or they enslave us and harvest what little resources we have left. We are running out gradually using up everything and destroying ourselves. We dont need to think an advanced race would do it. Most likely they are laughing at us.

  • John Cheng
    John Cheng 5 days ago


  • eLUKEtric! 2.0
    eLUKEtric! 2.0 6 days ago

    plus all the games of brochien ultra cricket would be annoying

  • Parikshit Prasai
    Parikshit Prasai 6 days ago

    And I'm here still worrying about my nation's politicians...
    Coming from a Nepalese, it's a lot

  • Legion
    Legion 6 days ago +1

    What about the posibility that Aliens are already visiting our planet and are far more advanced than us being able to travel vast distances in space and are much older than ours.

  • Gustav Bertlin
    Gustav Bertlin 6 days ago

    It’s a pretty interesting theory I gotta say. But I can’t really understand why the fact that we haven’t seen space empires would back up this theory. Just the fact that it was 3 years ago we first detected planets around the closest star to the sun which is only 4ly away, that says quite a lot. What would we expect to see? A Dyson sphere that’s probably not even possible? Even if there was intelligent space empires out there, how would we possibly even detect them? Making a conclusion that space is dead is just ridiculous when we have no way of detecting life.

  • jess 345
    jess 345 6 days ago

    I'll continue watching star wars. Thank you😊

    ANGRY WRARRL 6 days ago

    Well shit... That just made me feel depressed and cynical. Science and reality can really be a bummer sometimes. Hopefully, we are rare enough that our future isn't certain, but not rare enough that we are the only species that has made it this far. It would be nice to know we aren't the only living planet in the galaxy, or even the universe (which seems unlikely). Because it makes it that much more screwed up when you look at how we treat our planet.

  • Nikolay Vyglazov
    Nikolay Vyglazov 6 days ago

    We live on the theerd

  • Jairo Mojica
    Jairo Mojica 6 days ago

    The great thing about humanity is that we learn and communicate! But in todays society, everyone is too lazy to learn

  • TheMarker2015 L.S
    TheMarker2015 L.S 6 days ago +1

    Well all be dead in 9 billion years don't worry all Suns will die out.

  • Grace
    Grace 6 days ago

    Or we could just ask nicely

  • Moises Plata
    Moises Plata 6 days ago

    This filter is called ego

  • muP8085
    muP8085 6 days ago

    Videos are great...but Ur channel name is extremly hard to pronounce..😥😂

    • Den Harrow
      Den Harrow 6 days ago

      "Ur" have "2" practice. 🤦🤦🤦

  • ken
    ken 6 days ago

    just nuke them LUL

  • Pawel Zybulskij
    Pawel Zybulskij 6 days ago

    Maybe filter is that interstellar space which is too big making expanding outside home star system unfeasible.

  • Ray Lucyan
    Ray Lucyan 6 days ago

    I have seen the hole video and I believe that you’re a bit to pessimistic

  • Rimjhim Mitra
    Rimjhim Mitra 6 days ago

    Bird box

  • Benjamin Bradford
    Benjamin Bradford 6 days ago

    I don't understand why discovering life means the Great Filter is ahead of us ...

  • oto244
    oto244 6 days ago

    or NASA is doing coverup smh

  • Anonymous Anonymous
    Anonymous Anonymous 6 days ago

    I want to believe

  • Nicholas Sostre
    Nicholas Sostre 7 days ago

    Listen people if aliens wanted to f****** kill us they would have did it a long long long long long long long long time ago.... And thats only 30 secs into the video.!!! I think the aliens are just waiting for us to get smart so we can make our own f****** spaceships and go join them Where We Belong we've only been clouded by bulshit since we've been born😵😵😵😵😵😵😵😵😵😵😵

  • Harry Bauer
    Harry Bauer 7 days ago

    Oh now the aliens are terrorist? Lol. This video is crap

  • Dwonis
    Dwonis 7 days ago

    Why would colonialism be universal?

  • BosnianGeneral JH
    BosnianGeneral JH 7 days ago

    Hello everybody,im a dude that you don't know,but as a not lot people know about this,im gonna talk about THIS,lets say signal,
    in 1990,s people discovered alien signal,this signal was modern like one that we could send right now,but,this signal was as thinked send by even a lot of billions years,some people think that's ice ages,but some that's a lot before send.
    As scientists say this signal is about help,surely about nuclear catasthropy or a specific mostly likely natural disaster that we don't even have right now to be avaible,they didn't knew there are others civilazations in the universe,thinks like ours,and that's pretty strange,for me opnion is MAYBE.

  • MultiMurmaider
    MultiMurmaider 7 days ago

    Somehow, I find the thought of billions of planets lying empty and dead more disturbing than the idea of being wiped out by any Great Filter.

  • Cordax
    Cordax 7 days ago

    What if there are TWO great filters? We passed one of them (complex cellular organisms), but there is also one in front of us (global warming, nuclear weapons, ego-centrism, etc.) ?

  • رعد ابن الحسن

    For all the atheistes ! Stop saying that WE came to life randomly or by evolution , because if you belive in sience you will know that is 0% chance to developpe from 1 cell to be humain with our complexe structure even if WE give you 99999999999999999999 zillion year