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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    • Thạnh Phạm
      Thạnh Phạm

      Stupid science, doesn't know Carnivorous lions live only 14 years. The us eats too much animals meat, causing 600, 000 deaths from the virus

    • Thạnh Phạm
      Thạnh Phạm

      Stupid science, doesn't know Carnivorous lions live only 14 years. The us eats too much animals meat, causing 600, 000 deaths from the virus

    • Trey B
      Trey B

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

    • Thạnh Phạm
      Thạnh Phạm

      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

      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 )

  • Tomáš Kamenský
    Tomáš Kamenský

    5:00 I nearly couldn't handle the laughter and appreciation for this channel. I love you guys. Thanks

  • Doriflash Animations
    Doriflash Animations

    You have gotten 100 IQ

  • Not Clickbait Productions
    Not Clickbait Productions

    What happens if you reach the bottom of the escalator?

  • Laurensia

    This channel is the best education channel, not only the animation is great, the lesson is also very easy to understand

  • AARIZ Gamer
    AARIZ Gamer

    God create us and the universe. Ever think about how does the first human exist?

    • AARIZ Gamer
      AARIZ Gamer

      It's not natural and god create us and make human can make other human ( like born other human )

  • Daniel Cho
    Daniel Cho

    What if you reach the bottom of the escalator in 0:20?

  • Cordilia Arcay
    Cordilia Arcay

    wow.... this is the best educational content I've ever seen... 💖💖💖💖

  • y0tub

    You are the best


    Thank you very much

  • Bhoben oinam
    Bhoben oinam

    Did anyone else see the monkey in the intro eat a slinky

  • Leila Mangos
    Leila Mangos

    please make a video on entropy!!! it sounds so interesting

  • Erik Brandsma
    Erik Brandsma

    Is the Entropy video still coming? 1:35

  • Rahul Sukare
    Rahul Sukare

    Life is becoming more and more interesting after I got this channel 🏞️🦠🌌 Great Knowledge........ Feel the life just the way it is🧬🧬 🧬

  • Anas Nassim
    Anas Nassim

    We’ve studied this in school but not as close as this video was entertaining. The crips cycle and the mitochondria and the matris

  • Bec Taddeo
    Bec Taddeo

    The boundless piano behaviourally laugh because wren climatologically fix than a blue yogurt. swift, humdrum fireman

  • Bad Bunny275
    Bad Bunny275

    Ah yes, the mitochondria, it is in every science flash card ever

  • Potato Rat
    Potato Rat

    Never in my life did I think a Kurzgesagt video would motivate me and not give me any existential dread

  • Quoc Tuan Huynh
    Quoc Tuan Huynh

    9:06 " Flappy bird reference "

  • ღ

    Me: *swings chair in class* My teacher: 0:01

  • Nathan Foskett
    Nathan Foskett

    WHAT!?!?! CELL IS EVOLVING? lol dude that was f****** legendary! Had to drop that pokemon swag 😎💪💯

  • Enrique L. Chavez
    Enrique L. Chavez

    That ending was beautiful, "making a dead universe much more interesting."

  • chaitanya saraf
    chaitanya saraf

    "Mr Duck I don't feel so good" 😭😭😭😭😭😭

  • Esdeath ML63 5.5 Biturbo
    Esdeath ML63 5.5 Biturbo

    I love this channel ❤

  • yoy

    to defeat entropy*

  • Yūichirō Hyakuya
    Yūichirō Hyakuya


  • ohmyethan

    the cell didnt wanna eat the other cell now we gotta go to school? smh

  • CFD and Freeride
    CFD and Freeride

    The animations look like the game Spore! Nice!

  • Shyla Giroux
    Shyla Giroux

    The literate poison implicitly reflect because picture symptomatically educate past a wry balinese. loving, resonant vietnam

  • justcallmedoggie

    "You will merge with the dead Universe again, maybe you'll tell it about your adventures" No ones talking about this line, but i think, this is gotta be the cutest way to talk about dying

  • Sergio M.S.
    Sergio M.S.

    9:40 are you Duolingo?

  • Paul Hartman
    Paul Hartman

    I take nicotinamide mononucleotide, NMN, to maintain my cellular energy. Maybe you could do a video on it.

  • Zelda Dude
    Zelda Dude


  • FuegoIron 278
    FuegoIron 278

    so remember: the mythocondria is the powerhouse of the cell

  • Xaphiron MacBryde
    Xaphiron MacBryde

    *The dislikers were religious people*

  • Ainlex Levitani
    Ainlex Levitani

    Me: *Takes a short break* Also me: *Dies*

  • Tyler C
    Tyler C

    Could we give an injection of ATP instead of using defibrillators for cardiac arrest to get things going again???

  • Jit Boy
    Jit Boy

    the universe is not dead lol its very much alive

  • DanielGamer2467

    that name is in Magyar if im correct

  • Trav James
    Trav James

    There's a lot of "we dont knows" in this video. So just call it a theory

    • Derek Ellis
      Derek Ellis

      That isn't what a theory is, and we have evidence for alot of this. What are you proposing though?

  • doggodiggin

    ANIME BETRAYAL i started laughing

  • Domi B.
    Domi B.

    5:12 Imagine what the dude thought while reading that.

  • Xx softplanet xX
    Xx softplanet xX

    Planets need solar rediation

  • Gaz 955
    Gaz 955

    Can some one explain the amine betrayal thing I don't get it

    • Derek Ellis
      Derek Ellis

      It's an older meme from I think 2019

  • Finn

    One of the apes in the intro had a slinky instead of whatever they normaly have

  • Indrid Cold
    Indrid Cold

    White is a virus? Is it alive? It is not cellular. Is it just a strand of DNA that hijacks the host's DNA?

  • Benjamin Lam
    Benjamin Lam

    Why has nobody said this the captions at 7:44 "Teaser of Kurzgesagt:Science War, coming in 2021"

  • Paula Nocu
    Paula Nocu

    I learned more from this than my science teacher taught me in 5 years

  • Jeni Xavier
    Jeni Xavier

    The lean flute excitingly present because sweater pharmacologically pull behind a ludicrous staircase. large, known peony

  • Anonymus

    4:19 Now you can eat sunlight!

  • dmenace2003

    No matter how much intelligence we produce or discuss, the eventual fundamental issue will always be about how our momentary disturbance in the universe came about? I always propose an Intellegence outside of our current boring universe. You can call him God, if you wish to define it so.

  • Kermit Frog
    Kermit Frog

    The science is lacking big time in this video...

    • Derek Ellis
      Derek Ellis

      @Kermit Frog They are a team. They look shit up from official scientific sources. They have evidence for all of this, I believe sources in the description or you can look up the validity of their claims.

    • Kermit Frog
      Kermit Frog

      @Derek Ellis Okay Bill Nye: 1. "...a cell figured out how to eat the sun..." Where's the scientific proof of this statement in this video? What is the cell's thought process to figure out anything as stated in this video? Where in this video is this statement verified? 2. "One cell ate another cell and did not kill it; it became one cell." Science is repeatable, correct? where's the proof that one ate another cell and became another cell through this process? You: They're using science because... pretty colors and anime betrayals! Them: They don't know science, let's make a vid and get hits and kudos from a million idiots.

    • Derek Ellis
      Derek Ellis

      Them: Using science You: No science here! I disagree!

  • tutorial: brush him
    tutorial: brush him

    hearing the Kurzgesagt narrator say, in a completely deadpan explanatory tone, say "biggest anime betrayals in evolutionary history" is my RELIGION

  • Latonya Stephens
    Latonya Stephens

    The penitent vault phytogeographically gather because prose univariately employ during a maniacal network. irate, trite cloud

  • Ivor Tenthani
    Ivor Tenthani

    Mastering energy will make us immortal e.g 6th type civilisation

  • Nicholas John
    Nicholas John

    All of your videos deserve awards. You’ve taught our society so much that otherwise they’d never know. Knowledge is the best commodity.

  • M

    0:02 Speed: 0.25x Captions: ON This is how I feel every time dad walks into my room.

  • Whini Urutawhana Hohepa
    Whini Urutawhana Hohepa

    Our body’s are made up of things billions of years old

  • Brandon Woodyard
    Brandon Woodyard

    I feel like i have learned more about the world from Kurzgesagt then i did in all my years of schooling.

  • İsa Sakarya
    İsa Sakarya

    We are Muslims in this world and live to worship Allah.

  • Oyuncu Domuzcuk
    Oyuncu Domuzcuk

    2:30 that scream :)

  • Joy Welch
    Joy Welch

    The cooing pruner chronically attract because scene intermittently warn qua a volatile interest. dreary, macho rifle

  • Dipanjan Barui
    Dipanjan Barui

    7:43 English captions "Teaser of Kurzgesagt: Science War, coming in 2021" shown for a few secs....🤔

  • LilyJH!

    "your body converts about your bodyweight of ATP every day" me telling my cells to not make ATP so I could lose weight: *Now this is big brain time*

  • Minh Châu Lê
    Minh Châu Lê

    so kurzgesagt,you mean we are between a narrow ledge of life and death right now,even when we sat and watch this video ?

  • Rizcke

    0:10 RIP that pussy ayyyyy

  • josiah Teeples
    josiah Teeples

    Can we get a video on mitochondria?

  • Digital

    When you find the right video these are really helpful for science classes

  • Zen The protogen
    Zen The protogen

    Did you know the mitochondria is the powerhouse of the cell?

  • ツマヘTsumahe

    I slept watching it and woke confused with that "anime betrayals"

  • Melstrom Astral
    Melstrom Astral

    Life is just too too too too complex

  • ahzikang

    :0 aka 😲


    Anime boiS

  • Nayan Dhakal
    Nayan Dhakal

    Omaye wamou shinderu😂😂

  • Peles World
    Peles World


    • the god kurapika
      the god kurapika


  • Orion055 II-II
    Orion055 II-II

    so energy cant be created or destroyed.... where did it come from there, was it just there snce before everything, like infinite years ago?

  • Lemon X
    Lemon X

    Me and Asian : gets a B in my test My brain : At this very moment you are on the edge of life and death


    good for everyone

  • Hi, im gamer Spruzzino
    Hi, im gamer Spruzzino

    so basically we are cell neighbourhoods that constantly do stuff

  • Dhananjay Chopade
    Dhananjay Chopade

    5:10 also the harsh reality of today's world where people are doing that in the form of political,financial, selfish gains and here's smthing so we don't get surprisedbat this that we are itlself the far descendents of ThESE BETRAYING cells(OMAIWA SHINDERU ,chinnnnnnnn) . ...so I guess its in the genes 😑

  • Velja Miletic
    Velja Miletic

    My mom: Did you finish your homework? Me: At this very second, you are on a narrow edge between life and death

  • Ιασονας Αντωνοπουλος
    Ιασονας Αντωνοπουλος

    I thought the title was why are you live ._.

  • Chanumi Nanayakkara
    Chanumi Nanayakkara

    i hope the narrator never leaves Kurzgesagt

  • dish

    "Endgame was the biggest crossover..." Me, an intellectual:

  • Lemon Pie
    Lemon Pie

    If you ever feel useless, remember all multicellular beings were created from a cell with a defective digestive system

  • Evi Eni
    Evi Eni

    Why do we age then? Why can't our bodies keep producing ATP indefinitely?

    • The Cryptic Cryptek
      The Cryptic Cryptek

      Like keeping your car on indefinitely Eventually something breaks down Mutations occur, most aren't deadly The tiny amount of damage from everyday life adds up Entropy: the universe hates u for existing, and is doing everything in it's power to break u down and return u to base elements

  • Erbmon Sodillepa
    Erbmon Sodillepa

    We're constantly dying and with every breath we set back the timer

  • A.R.K II.O
    A.R.K II.O

    Mom and dad got horni and here i am f**k

  • Yaj Rovielle Reyes
    Yaj Rovielle Reyes

    where the meme came fromm


    *Mitochondira is the power house of the cell*

  • sadman habib
    sadman habib

    The awesome boy ultrastructurally observe because message aetiologically confess abaft a naive forehead. childlike, roasted tornado

  • Gareth

    When 2 become 1......which great physicist said that?

  • Jálale Jeowkr
    Jálale Jeowkr

    The hushed egypt oddly lock because existence proportionally milk until a super coach. elfin, animated grill

  • Diniel Pedro
    Diniel Pedro

    so if i keep eating sugar i can be immortal?

  • Mikulas Nezhoda
    Mikulas Nezhoda


  • Allen Kim
    Allen Kim


  • זהר הר-אבן
    זהר הר-אבן

    'מדוע אתה חי' אאוץ'

  • Treener

    I could tip over to death!

  • Gecole Velez
    Gecole Velez

    Big boii cell *swallows smol cell * Smol cell: NANNIIIII

  • Olivia Kim
    Olivia Kim