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 • 31 463

  • Kurzgesagt – In a Nutshell

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    • varun reddy
      varun reddy 9 days ago

      My question . are we elementory particles. to another species? .Like we have never ending space . which we cannot percieve what actually us real

    • Jagred PeaceMocker
      Jagred PeaceMocker 12 days ago

      Filter: aging, diseases, psychology, non-coexistence, ethnocentrism, dominance. I know some scientists think they discovered cure to aging, by permanently eliminating digestive enzymes in your body. Some even claim they completely eradicated aging of humans by removing digestive enzymes circulating. So it can be tomorrow for us or not, to live long looong time become 3rd quantum civilization.

    • Harun Ahmad
      Harun Ahmad 18 days ago

      +Traps ybu

    • Harun Ahmad
      Harun Ahmad 18 days ago


  • Official Hong Kong Uber Drivers Channel

    The great filter is T-Series getting to 100M. Trust me.

  • MrHotbulldozer
    MrHotbulldozer 3 hours ago

    There is no second creation, and because life can't start spontaniosly, this planet is it.

  • Bigboi_chriis
    Bigboi_chriis 3 hours ago

    Why don’t we just seed a planet with earth like conditions with life or just any planet

  • Artimissle Clone
    Artimissle Clone 5 hours ago +1

    I just wish there were other smart creatures on Earth, I don’t care if there are in the galaxy, but it would be cool to be roommates with an alien.

  • Random Memes Weekly
    Random Memes Weekly 6 hours ago

    i remember when this video first came out

    YASIR AMAAR Joyce 7 hours ago

    I'd like to see aliens depicted as beings with a greater moral compass.

  • Necrozma Gaming
    Necrozma Gaming 9 hours ago

    How to make a Kurzgesagt
    1. Make people paranoid about death
    2. Add worthless facts
    3. Add birds

  • MasterGamer 18
    MasterGamer 18 9 hours ago

    6:12 we are behind it since we our about to make ourselves extinct from climate change

  • Packy Chan
    Packy Chan 10 hours ago

    I don’t see anything including aliens in this episode, smh.

  • Hell-walker666
    Hell-walker666 10 hours ago

    mabey the only reason we passed is that we got help from an otherworldly being which we now call today "God" .

  • Jack McInnis
    Jack McInnis 10 hours ago

    If the roadblock is ahead of us, *its global warming.*

  • Darth plagueis
    Darth plagueis 11 hours ago

    Or maybe y'all are to stupid to think about LIGHT YEARS

  • John Davies
    John Davies 11 hours ago

    Nicely done not patronising well put together.

  • ecogreen 123
    ecogreen 123 11 hours ago

    finding life would be mathematically horrible… but amazing in general XD

  • Kund Balint
    Kund Balint 13 hours ago

    If wee find intelligent life it could mean, that there's no filter.

  • David Benson
    David Benson 14 hours ago

    Simple answer of this video is = play halo

  • Pugsley The pug
    Pugsley The pug 14 hours ago

    We have floating beds now 😐

  • MATH Genius
    MATH Genius 15 hours ago

    You forgot to mention this Great filter!

    *R E L I G I O N*

  • GoldenWolf Ajpw
    GoldenWolf Ajpw 16 hours ago +2

    *_I don't get it_*

    • MATH Genius
      MATH Genius 15 hours ago

      Watch the Fermi paradox videos b4 this to get the context.

  • Reisender Raumplaner
    Reisender Raumplaner 19 hours ago

    I think there are many great filters, but maybe we have solved more than other zivilisation. I think Climate Change is one of these filters.

  • Coral Gillespie
    Coral Gillespie 20 hours ago

    But what if they help us?

  • Lego6lego
    Lego6lego 22 hours ago

    a unions, Russia tried that

  • Gonxkillua_chan :3
    Gonxkillua_chan :3 23 hours ago

    I hope y’all know im only watching this because I had a scary ass dream that aliens invaded earth and took children as test subjects

  • Michaelc136
    Michaelc136 Day ago

    No my friend, this is called human nature.

  • Chris Dishneau
    Chris Dishneau Day ago

    Alien life on our planet = cowboys and Indians....we are the Indians

  • Nessie-Boi
    Nessie-Boi Day ago

    *we are aliens to aliens*

  • Kris Silver
    Kris Silver Day ago

    4:30 The only thing school taught me

  • Galactic Dragon
    Galactic Dragon Day ago

    Cant we build a bridge over it?

  • bigbbzz walid
    bigbbzz walid Day ago

    you should have just said its god because it is

  • Gemini Lion
    Gemini Lion Day ago +1

    What if.. the filter is BOTH behind us AND in front of us? Two great filters! We past the first one, now having to overcome the second

  • Peepee Train
    Peepee Train Day ago

    What if we were the first and the aliens we discovered are extremely special like us.

  • Teddy Thompson
    Teddy Thompson Day ago

    Well actualy looking into space that far away to other planets we would be seeing the planet billions of years before the present day

  • Joseph Totzke
    Joseph Totzke Day ago

    Just hearing that we might colonize the universe makes me think: I was born in the wrong century

  • Djoker Productions
    Djoker Productions Day ago +2

    This makes the think the Adam and Eve Story is a parable mean’t to teach us how to surpass the “Great Filter” something so simple, like don’t eat the apple, or don’t destroy the environment with technology is ignored by humanity in pursuit of pleasure, IPads, Phones, Electric Cars, a sweet apple. We know we shouldn’t but do anyway, the temptation is too great.

  • GojiraGuy 1954
    GojiraGuy 1954 Day ago +1

    Wait... If there was intelligent life, wouldn't it be a good thing? (Since they've passed the filter)

  • Buddy Anagnostakis

    Your animation is getting so much better! I love this concept and I'm glad I click as well as understanding this:)

  • 90PercentHuman
    90PercentHuman Day ago

    Filters be like:
    Hey I wonder what this button is for

  • Jrlomay0616
    Jrlomay0616 Day ago

    The Great Filter could be time, as it takes fuckin forever to go places outside our own solar system

  • Ayşenur Bingül ayrancı

    Option 1:ahead of the filter
    Option 2:the filter will destroy us
    Option 3:WE ARE THE FILTER
    Option 4:We will build around the filter
    Option 5:We will consume the filter

  • Amy Smith
    Amy Smith Day ago

    Look up Fermi's paradox, much more thorough

  • Yasin AKYOL
    Yasin AKYOL Day ago


  • Alvaro Lara
    Alvaro Lara Day ago

    Another possible filter may be disease. We are lucky to have survived the many times those microscopic bastards killed most of humanity.

  • crcoghill
    crcoghill Day ago

    Buuut~ what if there is no filter? What if we did just get lucky and we just haven't found any other life yet?

  • Random -
    Random - Day ago

    4:40 WE DONT KNOW

  • Dorothy Isidro
    Dorothy Isidro Day ago

    I recommend watching the Fermi Paradox video after this.

  • Scott Kolle
    Scott Kolle Day ago

    A cell eating another and using it for energy only happen once? What about chloroplast, I think plant cells did the same thing so it happens twice on this planet why could it not happen somewhere else

  • Azn Numba wan fan
    Azn Numba wan fan 2 days ago

    i want to find a sexy alien

  • Spongbob Squarepants

    damn it, I was born at the wrong time :/

  • sfkeepay
    sfkeepay 2 days ago

    This entire (worthwhile and thought-provoking) thesis critically depends on your idea that “we should be able to see something” if there are other advanced civilizations in the galaxy. But this one key seems factually incorrect. There could be millions of other planets with life, and untold thousands of other advanced civilizations in the Milky Way, but we can detect them because space is, to put is mildly, really, really big. We only just verified the existence of other planets - AT ALL - in 1992. Not because we are stupid or because we weren't looking for them, but because finding planets is like being in Atlanta looking for a grain of sand in Tucson....and not even knowing where Arizona is. It's wildly premature to claim there are no other civilizations in the galaxy, so this entire argument is just well-constructed speculation. It's far more likely that there are MANY barriers, both behind and ahead, and only time will tell how well, or how poorly, we cope with them.

  • Crispp Ratt
    Crispp Ratt 2 days ago

    *Scientist discovers alien organic particle*


    alien organic particle- (remains a pile of dead plant cells)

    • Crispp Ratt
      Crispp Ratt 2 days ago

      that sounded like an 8 year old wrote it, but idc

  • André
    André 2 days ago

    well.. didnt understand why discovering aliens would be a bad thing

  • 巴PipSophia
    巴PipSophia 2 days ago

    We are making our world go to ruins and I’m 99% sure the filter is in front of us. What if we have been to other plants, but every time we do that we die and must start of by moving to another plants, but by doing this, we loss things like our intelligence and we’ll maybe devaluation? Theories 😂😂 jk Ik that’s not true

  • Nature Aura
    Nature Aura 2 days ago

    btw the aliens will not destroy us they would have done it by now and yes there real. ive met one of them. well more then one but other types. there like us but more peaceful

  • Osmone Everony
    Osmone Everony 2 days ago

    1. Not seeing extraterrestrial life doesn't mean it does not exist.
    2. You assume that extraterrestrial species are as dumb and war mongering as we humans. Do you really believe we will make it past our solar system before we go extinct? Open your eyes!
    3. 7:18 "let's hope that that's not the case". It's already happening!

  • God_Laughs _At_Atheists

    If we can't get by the destructive force of the Democratic Party, how can we get by space aliens?

  • games56
    games56 2 days ago

    6:55 so you'r saying that global warming is why there are no aliens

  • Tengou
    Tengou 2 days ago

    "This means something is preventing living things from climbing the staircase from beyond the step we're on right now."

    Don't tell me the Reapers are real.

  • LuisFrom Philippines
    LuisFrom Philippines 2 days ago +1

    I think we surpassed the great filter because we are intelligent

  • Lukeland
    Lukeland 3 days ago

    To Be Honest I Think The First Life On Earth Was From The Last Hope Of An Alien Civilization Passing On Their Genes To Escape Extinction -3-

  • Tyler Milton
    Tyler Milton 3 days ago

    Its all an illusion. We dont exist. You never saw this video. Your not real.

  • recr3ateFX
    recr3ateFX 3 days ago

    Kurzgesagt: *talks about evolution*
    God: am I a joke to you?

  • εxtra-τ
    εxtra-τ 3 days ago

    ur mom's the great filter

  • Riley Ladd
    Riley Ladd 3 days ago

    if two humans had a baby on mars, does that make the baby an alien?

    • -FUN MEMES-
      -FUN MEMES- 2 days ago +1

      Your logic is absurd never ask that pls thank u.

  • Silvus Sol
    Silvus Sol 3 days ago

    Another reason we may not see aliens is because the really intelligent ones don't want us to see them. Think about it, if you were an alien being would you want to land on Earth and introduce yourself to humanity right now? Depending on where you land you are just as likely to get shot as get a handshake. We humans are still very young and have a LOT of growing up to do. Until we do grow up, aliens are better off watching us at a distance undetected.

  • MamaKanna
    MamaKanna 3 days ago

    i have a problem with this entire video, you make it seem like it would be bad, if we found bacteria we can use it to further our research, if we found a supercolony of aliens, that is already capable of interstellar travel, then that measn that they are more than likely already aware of us, if we found ruins of an alien civilization then we can try to learn what happened to them and how to further ourselfs with their technology, if it is worth researching. again, if beings that are capable of planetary travel then they would be aware of us already, many researchers believe that if an alien civilization did conme across us they probably wouldnt do anything to us, nor would they announce their presence. if aliens do know about us, if they do exist, then we wouldnt know until we are tech wise able to.

  • Heavy Pokelover
    Heavy Pokelover 3 days ago

    Possibly the great filter is intergalactic dominance itself as if two different alien species were to meet each other and they both want intergalactic rule over the the Milky Way they would compete and fight for it and eventually the great filter would lead to death for both species

  • Mustafa Eren
    Mustafa Eren 3 days ago

    Ruins of ancient civilisations on other planets would be awesome ! WTF he is talking about? And the symbiosis of two bacteria is really a stupid explanation in lack of explanation. Life on Earth IS the proof of extraterrestrial life because of panspermia. This evolving life out of the "soup" is embarrassingly stupid. Life on earth appeared in two forms from the beginning not one.

  • Aizen Sousuke
    Aizen Sousuke 3 days ago +1

    The great filter is the Brethren Moons, waiting for us to spread out across multiple solar systems so they can eat us. 😄

  • Isaac Sikkar
    Isaac Sikkar 3 days ago

    we are still asking if theres life on Europa or mars. That kinda indicates we lack any real ability to rule out the exsistence of life with our current understanding and capabilities. Also AI wouldn't be the great filter as we would notice AI even if they killed the alien species that created them.

    • MamaKanna
      MamaKanna 2 days ago

      +Isaac Sikkar but it literally says on the NASA Rover expedition pages that they found dead bacteria...

    • Isaac Sikkar
      Isaac Sikkar 2 days ago

      no dead or alive bacteria was found on mars. the rest you say is true though. but it isnt proof that there was/is life on mars. And this is my point, there very well could be life on mars but we still dont know yet due to our own limitations. just like there could be life in the universe but we dont know yet due to our own limitations.

    • MamaKanna
      MamaKanna 2 days ago

      +Isaac Sikkar rovers on Mars have detected bacteria in the frozen ice, like you said a simple Google search can show you everything, Mars is a planet that used to have water all around the planet, the reason we know this is because of the rovers that we sent there collected data and sent it back to us(not actual samples just the actual data) and just from that we are able to carbon-date the samples they have gave us, finding ice at the North Pole of the planet and finding water molecules in many rocks found, among the ice we found dead bacteria, this is on NASA's website.

    • Isaac Sikkar
      Isaac Sikkar 3 days ago

      +MamaKanna you sure about that? A quick google search says the only evidence to support that was a meteorite found in Antarctica, immediately that sounded as if it was just bacteria from earth. But even if it were true, that's still not a good sign for us as far as our ability to detect life elsewhere; and if anything is only a testament to how bad we are at it. Think about it, we cant even find life on a planet with such close proximity without just random, completely out of our control luck.

    • MamaKanna
      MamaKanna 3 days ago

      bacteria was found on mars....

  • DEViN DaWN
    DEViN DaWN 3 days ago +3

    *Alien hits bong*


  • The Doctor
    The Doctor 3 days ago +1

    To think we are the only life in the universe is not only incredibly naive but incredibly arrogant that only we could make it this far or farther.

  • The Doctor
    The Doctor 3 days ago +1

    So, just because people are looking at planets and haven't found any that they can tell has life (from super far away) doesn't mean there isn't life on a lot of planets, there is gold in the earth but just because you take a small shovel and put it in the ground doesn't mean there isn't gold in the ground, maybe its just not in your line of sight.
    Or maybe life has been found and we are being prevented knowing about it, which many people think some of which are quite smart.

  • Brave Fire
    Brave Fire 3 days ago

    3rd time i see this video, i just realized... maybe the filter just stops us and does not kill us all? You know, is not like all species died cause of not being inteligent and yet that was considered as a posible filter.

  • Benjamin the king Of Asgard

    What if we crest our on life not sexually but in a lab

  • Sienna Dumas
    Sienna Dumas 3 days ago

    This is an incredibly anthropocentric view

  • Jeremy Clancy
    Jeremy Clancy 3 days ago

    did dinosaurs really taste like chicken?

  • AgentJ666
    AgentJ666 3 days ago

    I am no scientist, but, what if the "Great Filter" isn't actually a thing? I am not just saying to this to create false hope, just analysing all possibilites. If we have never found other life, maybe life is already extremely hard to happen? Maybe that would mean, like is said in the video, the filter is right at the beggining.
    Still, if we DID find life, that would mean there is a higher chance the filter is ahead of us, BUT, what if we could actually pass the filter? It's a filter, not a laser path.
    Even if I am kinda late to this video, I would still love if someone else shared their views here.

  • Phil Schuler
    Phil Schuler 3 days ago

    And very crappy graphics

  • Phil Schuler
    Phil Schuler 3 days ago

    Bunch of egg head crap

  • xmoonlightdiaries
    xmoonlightdiaries 3 days ago

    watching this, i started thinking isn’t it mad we don’t remember anything before we were born we were are what are parents made us but we got picked out of all the sperms and eggs like we became this person but why did we get picked? how was i given the chance to live it’s just crazy 😂

  • Dark_Angel_of_Death
    Dark_Angel_of_Death 3 days ago

    Did not answer my question. The fuck is this filter?

  • grndragon7777777
    grndragon7777777 3 days ago +1

    What if we are the first intelligence in the universe?

  • Ed Quintanilla
    Ed Quintanilla 3 days ago

    We can land on saturn but we cant bcuz it is spinning so fast and jupiter is raining diamonds

    • MamaKanna
      MamaKanna 3 days ago

      words cannot express how disappointing this comment is..

  • dylan sky
    dylan sky 4 days ago

    idk what is scarier there being other life in the universe or earth is the only life in the universe both scenarios seem scary

  • Jim Raynor
    Jim Raynor 4 days ago +7

    Option #1: The filter is behind us. Option #2: The filter is ahead of us. Option #3: *_We are the filter._*

    • The Novvan Conlanger
      The Novvan Conlanger 13 hours ago

      Option #7: the filtre does not exist.

    • MATH Genius
      MATH Genius 15 hours ago

      Option #6: *The filter is a cube surrounding us*

    • Gemini Lion
      Gemini Lion Day ago +2

      Option #4: We will later become the filter
      Option #5: There is a filter behind us and ahead of us

  • Dixie Normus
    Dixie Normus 4 days ago

    7:25 What we can hope for? Answer: See "Is Reality Real? The Simulation Argument"

  • Francisco Mariño
    Francisco Mariño 4 days ago

    The great filter is reaching a point in which our civilization cannot sustain ito any longer with the resources it has available. Space exploration could be an alternative, yes, but paradoxically, it needs so many resources and effort that its development means reaching the barrier even faster.

  • That Generic Gamer
    That Generic Gamer 4 days ago


  • DynamicDurge
    DynamicDurge 4 days ago

    What if it isn't one great filter but many? Even if we were the first of all species in the entire universe to get where we are, it doesn't guarantee that there won't be a greater filter in the future (who knows how long that could be?)

  • Emiel333 Official
    Emiel333 Official 4 days ago

    I don’t think we are heading towards a great filter. It isn’t a given fact and even if it is so, it doesn’t mean that alien life forms were destructive and destroyed themselves. I think we are lonely in the universe and it’s a kind of luck that was on intend to be the only one in this yawing chasm. Simulation theory anyone!? 😉

  • Ali M
    Ali M 4 days ago

    Imagine there is a super intelligent version of us in about 8 billion years. Our next move is to move away from our solar system because our Sun is dying and is going to kill us soon. Say travelling the speed of light is really impossible as physics says and we travel maybe 5 percent of it. Maybe the great filter is that closer stars with habitable planets are also dying and we are forever floating in space as a colony of super intelligent beings who never find a home because we cant travel the speed of light and just die in the cold empty lonely space.

  • Conrad Campbell
    Conrad Campbell 4 days ago

    Who's paying you to publish these limited ideas? Ever consider that we haven't had publicised contact with benevolent extraterrestrial civilizations because we just simply aren't ready for it? Look at it this way, a new family moves into the neighborhood, and they are constantly killing each other over over trivial matters, whilst wildly breeding like rabbits. They also assume that they are the only family in existence, and perpetuate that idea within themselves through whatever means are necessary for the continuation of that belief. This includes movies that villify the very idea of other neighbors on the block. Would you invite then to a picnic? No.

  • silent destruction
    silent destruction 4 days ago


  • I Want The Sweet Release Of Death

    Bacteria has been found on Mars soooo

  • LiL juuL manE
    LiL juuL manE 4 days ago +8

    space bacteria:*calmly existing*
    United States: you better stop for i give you some FREEDOM!

  • Faustin Gashakamba
    Faustin Gashakamba 4 days ago

    An AI killing us wouldn't be a great filter unless it commits suicide afterwards. Otherwise, we should see universe full of AI.

  • Nikoslav
    Nikoslav 4 days ago

    I'm not buying this filter meme lol
    I don't find the argument "filter exists because we didn't find alien life yet" very unconvincing.

  • page 6
    page 6 4 days ago

    Just use noclip

  • UltYT
    UltYT 4 days ago

    I don’t believe in aliens… ha, I guess I should go now and watch your ‘How to Build a Dyson Sphere - The Ultimate Megastructure’