Why Are You Alive - Life, Energy & ATP

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At this very second, you are on a narrow ledge between life and death. You probably don’t feel it, but there is an incredible amount of activity going on inside you. And this activity can never stop.
Picture yourself as a slinky falling down an escalator moving upwards - the falling part represents the self replicating processes of your cells, the escalator represents the laws of physics, driving you forwards. To be alive is to be in motion but never arriving anywhere. If you reach the top of the escalator there is no more falling possible and you are dead forever.
Somewhat unsettlingly, the universe wants you to reach the top. How do you avoid that and why are you alive?
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  1. Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    Jaar geleden

    You want to learn more about science? Check out our sciency products on the kurzgesagt shop - all designed with love and produced with care. Getting something from the kurzgesagt shop is the best way to support us and to keep our videos free for everyone. ►► kgs.link/science (Worldwide Shipping Available)

    • Trey B

      Trey B

      5 dagen geleden

      So it makes a lot of sense when ppl say always keep going forward

    • Thạnh Phạm

      Thạnh Phạm

      5 dagen geleden

      A lot of money for what ??? The west has the most money in the world, died of the world's most virus. The United states uses the most vaccines in the world. In the United states 595,000 people died from the virus. North is the poorest country in the world. North Korea there is no vaccines money. North no people died from the virus

    • Thạnh Phạm

      Thạnh Phạm

      6 dagen geleden

      Stupid science Science doesn't know Sunlight produces wood. The leaves absorb photons converted to electrons -- and positrons + Leaves use 918 positron + attracts 917 electron -- create proton + Leaves use 918 positrons + that attract 918 electrons -- creating neutrons The leaves use 6 protons + attracts 8 neutrons to attract 6 electrons -- creating carbon ( C5H10 o5 cellulose )

    • Pump_daspookypumpkin


      13 dagen geleden

      Hey kurz, What is the average time you sell merch? (bought a blackhole/whitehole plushie), not trying to rush, just wondering'

    • Vinícius Cury

      Vinícius Cury

      18 dagen geleden


  2. Olivia Kim

    Olivia Kim

    6 uur geleden


  3. Luuk vd

    Luuk vd

    11 uur geleden

    Hey kurzgezagst, great vid you made hete im new to the Channel and i watched this and i thought. What is you made a game based on this vid. U start Billions of years ago as a single cel and u have to make decicions like how to idd ur energy en eventually untul now

  4. Sans.


    16 uur geleden

    Wait so we actually combust nutrients I thought it was typo

  5. Sans.


    16 uur geleden

    Top 10 anime betrayal

  6. Viktor Kadet

    Viktor Kadet

    Dag geleden

    what about this u fuckn crist lovers

  7. Subject 274

    Subject 274

    Dag geleden

    5:11 this is why I love and will continue to watch this channel

  8. Maxximus


    Dag geleden

    This video is a mistake The cell doesnt "have" to do anything. The cell lives because keeping alive and reproducing itself keeps a cycle in tact. When the force of entropy overcomes this cycle, the cell dies If the cell succeeds in getting the nutrients it needs to stay alive, it lives another day. The same is true on every scale. Humans dont live because we want to live or survive. We live because surviving "works" We arent concious, we dont make desicions, there is no "we" Living is just the act of sustaining the cycle that is "life" Everything we do, every "desicion" we make is simply a chemical reaction in the brain As a science channel, i think (

    • Johanns Kurth

      Johanns Kurth

      13 uur geleden

      La gente puede elegir, esa es la diferencia. Inteligencia para adaptarse.

  9. Tyler Renfroe

    Tyler Renfroe

    Dag geleden

    damn, really could’ve used this video back when i was struggling in Physiology lmao

  10. Saint Hades

    Saint Hades

    Dag geleden

    What if instead we accelerate the slinky. Will you be beyond alive?.

  11. Jiří Jelínek

    Jiří Jelínek

    Dag geleden

    *"Why are you alive?"*

  12. Brenda Landis

    Brenda Landis

    Dag geleden

    The handsome fiction intuitively retire because watch perinatally confuse beneath a alcoholic digger. filthy, obeisant rate

  13. aviv segal

    aviv segal

    2 dagen geleden

    you really should make "Mighty Chondria" an acual poster (0:48)

  14. Demon Girl Mortal Boy

    Demon Girl Mortal Boy

    2 dagen geleden

    if the universe wanted to be as boring as possible then there wouldnt be a universe, the universe isn't dead, you're just to arrogant and dense to understand the universe. fools preaching to fools

  15. Sam Thezest

    Sam Thezest

    2 dagen geleden

    0:54 this time the monkey had a slinky in his hand!

  16. googleyoutubechannel


    2 dagen geleden

    Love Kurzgesagt, but ya'll really missed an opportunity to find a good analogy, 'slinky on an elevator' is obviously pretty weak and problematic.

  17. someone


    2 dagen geleden

    Mythochondria is the powerhouse of the cell

  18. someone


    2 dagen geleden

    5:01 bruh

  19. Jacob Boyd

    Jacob Boyd

    2 dagen geleden

    ahhhhhh I want that entropy video so bad!

  20. Delighted Dino!

    Delighted Dino!

    2 dagen geleden


  21. ShiT oN

    ShiT oN

    3 dagen geleden

    You tell me it is no life after dead

  22. Na Rui playz games

    Na Rui playz games

    3 dagen geleden


  23. Anon Surfer

    Anon Surfer

    3 dagen geleden

    "A Cell is a piece of the dead universe...". The universe isn't dead. If it were dead, then the stars, galaxies, and all the matter wouldn't exist. All of these coming into being and dying is the stuff of life. Cosmic inflation - the fabric of spacetime expanding is philosophically no different from the cell replicating. Everything is doing its "own thing".

  24. Siddhartha Barman Mugdha

    Siddhartha Barman Mugdha

    3 dagen geleden

    Beings: minding thier life and living Universe: can u don't?

  25. 문재인


    3 dagen geleden

    한국인 좋아요 :)

  26. bobux Man

    bobux Man

    4 dagen geleden

    0:00 When Your Mother calls you by Your full name

  27. Akshit Kumar

    Akshit Kumar

    4 dagen geleden

    5:45 , so basically all of us are just a glitch?

  28. Drake ?????

    Drake ?????

    4 dagen geleden

    jobs in a nutshell: 1:23

  29. Ben Melindy

    Ben Melindy

    4 dagen geleden

    Existentialism - In a nutshell

  30. Daniel Hannen

    Daniel Hannen

    4 dagen geleden

    Where’s the entropy video!

  31. S o u p

    S o u p

    5 dagen geleden

    Oh, Okay then.

  32. Fall 2nd

    Fall 2nd

    5 dagen geleden

    4:18 : this single-celled organism just ended global warming

  33. Flyonnit


    5 dagen geleden

    0:50 can you guys make that Mighty Chondria poster pleaseeeee into merch pleasseeeee

  34. Astro Boi

    Astro Boi

    5 dagen geleden

    This is weirdly my favorite kurgezakt video. I have my reasons

  35. Nathan Hawks

    Nathan Hawks

    5 dagen geleden

    Billions of years ago two cells decided to merge into one cell and now I have to do calculus.... damnit

  36. Somebody insane

    Somebody insane

    6 dagen geleden

    at 5:12 did I hear biggest anime betrayal of irl

  37. Maria Dirani

    Maria Dirani

    6 dagen geleden

    0:00 thats me when i fall in lave with half a heart in minecraft hardcore and i dont have fire resistance

  38. Bubbles


    7 dagen geleden

    I would like to thank my single celled ancestor who ate the mitochondria So today i can comment this

  39. Dr • KB

    Dr • KB

    7 dagen geleden

    Why are we here, just to suffer

  40. Kokilaben Damor

    Kokilaben Damor

    7 dagen geleden

    When mom comes home and you have'nt wash the dishes: 0:01

  41. Tariq Al bdour

    Tariq Al bdour

    7 dagen geleden

    7:44 subtitles say Teaser of Kurzgesagt science war coming in 2021

  42. Combat Archer

    Combat Archer

    7 dagen geleden

    Bro..... energy can be destoryed .... its called the formation of matter and antimatter

  43. Ang28


    8 dagen geleden

    Fun fact: each intro is slightly different: the ape can hold different things, like this time, a slinky.

    • Ang28


      8 dagen geleden

      Nobody: Duck’s to do list: Cuddle Conquer universe Bake

  44. BLazy 45

    BLazy 45

    9 dagen geleden

    Normal people also call ATP: "breathing"

  45. wizzolo


    9 dagen geleden

    1:23 Ackchyually, the universe "is very happy" there is life, as cell metabolism increases the overall entropy of the universe, from a thermodynamic point of view, life is the path of least resistance to increase entropy.

  46. Anthony Losego

    Anthony Losego

    9 dagen geleden

    So ATP is the electricity capacitor of energy storage.



    9 dagen geleden

    amigos mi mamá esta en entrega de informes POV: Eres yo 0:00 dudes my mom is checking my notes POV: You are me 0:00

  48. Sinan Bozkurt

    Sinan Bozkurt

    9 dagen geleden


  49. The Fluffiest Tail`s

    The Fluffiest Tail`s

    9 dagen geleden

    Wait so you're telling me that a cell billions of years ago decided to stop committing cannibalism and now I have to be sentient.

  50. RawChicken


    9 dagen geleden

    4:19 Now you can eat sunlight

  51. adsfornothing


    10 dagen geleden

    6:00 and there we go with the time theme

  52. LuNaTic's Territory

    LuNaTic's Territory

    10 dagen geleden

    We r in the endgame now 7:41

  53. Sean Audray B.

    Sean Audray B.

    11 dagen geleden

    My teacher after i score 23% on the test: " *_W H Y A R E Y O U A L I V E ?_* "

  54. TS Gaming-X

    TS Gaming-X

    11 dagen geleden

    The new intro is good

  55. GamerKidLuis 213

    GamerKidLuis 213

    11 dagen geleden

    Why are there Russian subtitles lol



    12 dagen geleden

    Title: Me: "idk, I ask myself that everyday"

  57. Darion


    12 dagen geleden

    I love how kurzgesagt made the event of the first mitochondrion and the first eukaryote to fuse sound so awe-inspiring, like I knew that this was how eukaryotes were born but they really put into perspective how random and awesome the universe is that something as simple as 2 cells fusing would massively change life on earth forever

  58. Feryytrt


    12 dagen geleden

    Kurzgesagt makes you think about life

  59. Hammer Hand

    Hammer Hand

    12 dagen geleden

    If entropy and the universe are trying to make life stop then how did it begin in the first place. What pushed the first cell ahead of entropy?

  60. Simply Complexed

    Simply Complexed

    13 dagen geleden


  61. Simply Complexed

    Simply Complexed

    13 dagen geleden

    5:01 Top ten anime betrays

  62. Ptsryacnhs Thompson

    Ptsryacnhs Thompson

    13 dagen geleden

    love the anime reference

  63. Bendix Trinity

    Bendix Trinity

    13 dagen geleden

    5:01 you can hear it in his voice, HE LIVED for THIS MOMENT.

  64. Mr. Biscuits

    Mr. Biscuits

    13 dagen geleden

    The team is amazing

  65. Raymund P Jabla

    Raymund P Jabla

    13 dagen geleden

    I ask that to myself everyday

  66. Nick Nick

    Nick Nick

    13 dagen geleden

    4:17 basically that 1 cell went : *~taste the SUN~*

  67. code_dredd


    13 dagen geleden

    There's some science mixed with a significant amount of conjecture and hand-waving... it'd be more scientific if it stuck to what can be directly observed and measured (e.g., the process of how ATP gets manufactured, transported, etc.) and not on hand-waving made-up historical claims (e.g., how a hypothetical first cell "found a way to eat the sun", _as if_ there were _any_ natural processes capable of _creating_ the _information systems_ necessary for any of these processes to work in the first place).

  68. UngusBungusFilms


    13 dagen geleden

    0:51 my mom when I do something she doesn’t like

  69. daydayshan


    14 dagen geleden

    I can't believe that only 316K people like this video. It deserves more. It's super fun to watch an educational video with Marvel memes

  70. Kauã Silva

    Kauã Silva

    14 dagen geleden

    I'm a simple person, I didn't die so *I'm alive.*

  71. pokemonmanic3595


    15 dagen geleden

    The person who can invent a way for us to internal store ATP will be the creator of the fountain of youth

  72. Chill Gamer

    Chill Gamer

    15 dagen geleden

    so this is where the meme arrived from

  73. Christian


    15 dagen geleden

    Because... well, God isn’t it?

  74. arif _raziq

    arif _raziq

    15 dagen geleden

    Have you ever think for a second of your existence and all of this universe and where it came from? I know i did and it make me feel grateful to be alive and i realky want to know what happen if we are not here and not alive we wouldve been nothing and not know if we feel anything just blank that it...😭i feel so alive

  75. SCOOBY


    15 dagen geleden

    "how we animated our videos" Dude.. you fucktards use god damn premade assets from the SAME god damn people that INFOGRAPHICS DOES

  76. Bag O'chips

    Bag O'chips

    16 dagen geleden

    9:41 gave me chills

  77. Bag O'chips

    Bag O'chips

    16 dagen geleden

    when mitochondria got eaten so it can stay safe: task failed successfully

  78. TheEclipseMaster


    16 dagen geleden

    When I win an argument with my mom 0:00

  79. Jake Cowart

    Jake Cowart

    16 dagen geleden

    I really like this one Keep up the great work

  80. Alessio Ughetta

    Alessio Ughetta

    16 dagen geleden

    Humanity: **tries to understand what life is** Kurzgesagt: *s l i n k y*

  81. Mr. Blair

    Mr. Blair

    16 dagen geleden

    Nobody: The Cell: Omoe wa moe shideru

  82. Preyfix


    16 dagen geleden

    I had a dude tell me that the fact that energy can't be created or destroyed is proof that we have an afterlife

    • Preyfix


      13 dagen geleden

      @Dra. FATIMA MELO yes, good question, i asked him the same, he was one of those types where he's an idiot who "knows all"

    • Dra. FATIMA MELO

      Dra. FATIMA MELO

      13 dagen geleden

      what how? energy can't be created or destroyed is a law of thermodynamics, but how does that relate to an afterlife?

  83. ProBro Aaron

    ProBro Aaron

    16 dagen geleden

    When you realise that something is wrong We can't watch the universe ending and get out of our curiosities ending Possible reasons Universe and timelines are too big Light and matter is too slow Our lives are so short

  84. Stefan Latimer

    Stefan Latimer

    16 dagen geleden

    People: I'm afraid to die Me, an intellectual: I'm afraid of being boring

  85. Amy


    17 dagen geleden

    "why are you alive" my mom said i could

  86. MooseHead


    17 dagen geleden

    Why are you alive? Short answer; 42.

  87. Jester Circus

    Jester Circus

    17 dagen geleden

    So humans are like cancer to the universe. We separate ourselves from it to selfishly prioritize our own survival, clone our DNA through reproduction and leech off of the universe's resources to survive. It's like how deviated mutant cancer cells separate themselves from us, feed off of our blood and clone themselves. It's all karma.

    • Jester Circus

      Jester Circus

      17 dagen geleden

      We're all parasitic at different degrees

  88. 白翼


    17 dagen geleden

    This energy is so raw, it's indigestible.

    • Dra. FATIMA MELO

      Dra. FATIMA MELO

      13 dagen geleden


  89. Gummy The Player

    Gummy The Player

    17 dagen geleden

    The chimp had a slinky instead of mobile🙄🙄🙄 (see intro)

  90. Jassim M.

    Jassim M.

    17 dagen geleden

    ATP = Ash Twin Project. If you know you know :)

  91. Man Manliest

    Man Manliest

    17 dagen geleden

    and this happened because dark matter that doesn't exist exploded into matter that does exist and the matter clumped together to form dna and super complex things that humans with their big brains can make

  92. Yingkai Shao

    Yingkai Shao

    17 dagen geleden

    Is it just me or at 0:54 the monkey is eating a slinky? Bottom left

  93. Vercingetorix Avernian

    Vercingetorix Avernian

    17 dagen geleden

    Still waiting for ENTROPY video :)

  94. Angel Dust

    Angel Dust

    18 dagen geleden

    “why are you alive” i can change that for ya

  95. Jack Sylvane

    Jack Sylvane

    18 dagen geleden


  96. Turbo_plays


    18 dagen geleden

    5:04 Bacteria 2: Hey friend, do you have any glucose Bacteria 1: Sorry I’m using mine. Bacteria 2: Then you have no use for me (eats Bacteria 1).

  97. Some dude that rips planet in half

    Some dude that rips planet in half

    18 dagen geleden

    This video made me want to have a pet bird

  98. PuffThePlayerz


    18 dagen geleden

    If we push the slingy a little more and let it reach the ground, congratulation youre immortal

  99. KaZ


    19 dagen geleden

    Guys, let's start merging and become stronger

  100. Annurissimo 10

    Annurissimo 10

    19 dagen geleden

    "Why are you alive?" Guys we are not even a minute into the video...