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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  • Kurzgesagt – In a Nutshell
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  • Thạnh Phạm

    Thạnh Phạm

    18 dagar sedan

    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

    18 dagar sedan

    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

    Månad sedan

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

  • Thạnh Phạm

    Thạnh Phạm

    Månad sedan

    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

    Månad sedan

    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 )

  • Hikari White
    Hikari White4 timmar sedan

    Omae wa mou shindeiru. お前はもう死んでいる。

  • IC
    IC13 timmar sedan

    "Universe wants you to reach the top". Thanks, day starts good, but i open yur video. Anoth.

  • funnygrunt
    funnygrunt18 timmar sedan

    Dude that dab was too big for this

  • Gamieplays
    GamieplaysDag sedan

    0:00 I finally found the meme !

  • Mohammad Darwaze
    Mohammad DarwazeDag sedan


  • XinHui Li
    XinHui LiDag sedan

    “All life is traced back to this one cell” Oh, hi cousin :)

    ANA SERRANO DONADO2 dagar sedan

    Amazing thank for tge idea to consider life and death in a different way.

  • Khalyl Resendiz
    Khalyl Resendiz2 dagar sedan

    Taste the SUUUUN

  • Its no one presents
    Its no one presents2 dagar sedan

    0:00 -> 0:06 this is a meme

  • Ice_Wallowkome
    Ice_Wallowkome2 dagar sedan

    5:14 anime betrayals eyyyyy!!!!!!

  • bona pasogit
    bona pasogit2 dagar sedan

    Dari sisi sains, Hidup itu terlalu kompleks, sehingga memerlukan Arsitek Agung untuk mewujudkan nya . Ironisnya kita individu sering merasa hidup ini tidak berharga

  • tuyen pham
    tuyen pham2 dagar sedan

    rất hay very good

  • Abdullah K.
    Abdullah K.2 dagar sedan

    Wow the videos are getting more and more awesome with those memes and anime quotes LOL loved it!

  • Copyright Invalid
    Copyright Invalid3 dagar sedan

    "Why are you alive?" I don't know I ask mysef that question all the time.

  • •Eijiro Kirishima•
    •Eijiro Kirishima•3 dagar sedan

    this is like the biology version of "history of the entire world, i guess" and I'm here for it

  • T MM3
    T MM33 dagar sedan

    So what I am hearing is that the Universe iiiissss conspiring against me

  • Sir Uranos
    Sir Uranos3 dagar sedan

    Like the video; You know it deserves it.

  • u just rickrolled
    u just rickrolled3 dagar sedan

    wish my school is like this channel

  • KyoSohma _
    KyoSohma _3 dagar sedan

    This is the best video ive seen so far, all the references keep getting so much better. I have been laughing way too much at this

  • tomthebuilder
    tomthebuilder3 dagar sedan

    0:05 I like to live life on the edge

  • theeaglelandsatmidni
    theeaglelandsatmidni3 dagar sedan

    But wait what happens if you reach the bottom of the escalator

  • Carlos Rodríguez Solís
    Carlos Rodríguez Solís3 dagar sedan

    I love so much the Pokémon references in your videos! Like 6:18

  • First Name Last Name
    First Name Last Name3 dagar sedan

    Some cell didnt eat another cell and now I have to be alive. What an asshole

  • Morgan Dillard
    Morgan Dillard4 dagar sedan

    what happens if you hit the bottem would you live forever?

  • Yuta
    Yuta4 dagar sedan

    Imagine if this channel actually covered most of the topics ( or all) of human anatomy & physiology. That would be so cool !

  • garrett vaughn
    garrett vaughn4 dagar sedan

    4:01 Gordon Ramsay: THIS ENERGY IS F*@$% RAW!!!!

  • MWB Gaming
    MWB Gaming4 dagar sedan

    ATP: supercapacitor Glucose: Gasoline

  • De gamr
    De gamr4 dagar sedan

    Damnit I wanted to be the very dead part of the universe,screw cells

  • Titan Yhanos
    Titan Yhanos4 dagar sedan

    Wait.. what ?, Cell can speak Omaewa Mo Sindeiru ? Nani..? That's is old & Legend joke, nice..

  • AquaLady
    AquaLady4 dagar sedan

    Why fear the stopping slinky?

  • minecraft sucks
    minecraft sucks4 dagar sedan

    This made poeple depressed

  • Cake in Space
    Cake in Space4 dagar sedan

    8:23 WTF

  • TrainLover 106
    TrainLover 1065 dagar sedan

    Everything uses ATP? Oh wow everything is related to a train with Automatic Train Protection.

  • Pendragon
    Pendragon5 dagar sedan

    "why are you alive?" Thats a good question and yes I dont know.

  • Shaggyone789
    Shaggyone7895 dagar sedan

    The things that had to transpire for you to be here are mind boggling. It literally is a miracle that you are here watching this video.

  • Rav H
    Rav H5 dagar sedan

    Ty God for letting me be alive

  • KIRA
    KIRA5 dagar sedan

    My son : tell me a longass story dad Me(future) : It all started when a cell decided to separate itself from the universe so it could do it's own thing for a while.

  • Dark Angel
    Dark Angel6 dagar sedan

    I like animation..

  • le me Otaku
    le me Otaku6 dagar sedan

    The video answers "How are you alive?" Ask the cosmos "why" are we alive, our reason, our existence and this conscios. I, have the answer.

  • B787 lover
    B787 lover6 dagar sedan


  • Ray Alexander
    Ray Alexander6 dagar sedan

    Idk about you guys but im alivr because of cheap rubber

  • Nevin
    Nevin7 dagar sedan

    i strongly disagree that we came from a single cell or animals rather we came from Adam and eve.

  • Nevin
    Nevin7 dagar sedan

    to serve God and establish deen.

  • Rowe Ozzie
    Rowe Ozzie7 dagar sedan

    The colossal mouse metabolically inject because pisces independently clear circa a ordinary mandolin. living, smoggy ceiling

  • Sodacat 30

    Sodacat 30

    6 dagar sedan

    Where are ya where did ya start the day where you I gotta go to the game I love ya I love the video and you can go to crush and get a great time with your Twitter is your Twitter day and I gotta go where are you where where did ya start this game and where are going I don’t want you gotta is where we gotta I like the game where we gotta was a game day where I can get the same thing to go to get a Twitter

  • st1220
    st12207 dagar sedan

    0:00 @ this very 2nd u r on a narrow ledge between life & death

  • poop poop
    poop poop7 dagar sedan

    when you speak back to the teacher but she's not sure who said it 0:00

  • Nathan Ozimec
    Nathan Ozimec7 dagar sedan

    I’m sorry t

  • Raoof Sedeqey
    Raoof Sedeqey7 dagar sedan

    This video was so much deeper than most... loved it

  • DoDo Donut
    DoDo Donut7 dagar sedan

    yeah but what happens when the slinky gets to the bottom of the escalator

  • Loaaf
    Loaaf7 dagar sedan

    You should make an enamel pin of the spring from this video

  • Tomáš Kamenský
    Tomáš Kamenský8 dagar sedan

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

  • Doriflash Animations
    Doriflash Animations8 dagar sedan

    You have gotten 100 IQ

  • Not Clickbait Productions
    Not Clickbait Productions8 dagar sedan

    What happens if you reach the bottom of the escalator?

  • Laurensia
    Laurensia8 dagar sedan

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

  • AARIZ Gamer
    AARIZ Gamer8 dagar sedan

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

  • AARIZ Gamer

    AARIZ Gamer

    8 dagar sedan

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

  • Daniel Cho
    Daniel Cho8 dagar sedan

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

  • Arcay
    Arcay8 dagar sedan

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

  • y0tub
    y0tub8 dagar sedan

    You are the best

    AMAAR IDEAS9 dagar sedan

    Thank you very much

  • Extra $Income, Money Making Online
    Extra $Income, Money Making Online9 dagar sedan

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

  • Leila Mangos
    Leila Mangos10 dagar sedan

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

  • Erik Brandsma
    Erik Brandsma10 dagar sedan

    Is the Entropy video still coming? 1:35

  • Rahul Sukare
    Rahul Sukare11 dagar sedan

    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 Nassim11 dagar sedan

    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 Taddeo11 dagar sedan

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

  • Bad Bunny275
    Bad Bunny27512 dagar sedan

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

  • Potato Rat
    Potato Rat12 dagar sedan

    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 Huynh13 dagar sedan

    9:06 " Flappy bird reference "

  • 『• Nøt Aøi •』
    『• Nøt Aøi •』13 dagar sedan

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

  • Nathan Foskett
    Nathan Foskett13 dagar sedan

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

  • Enrique L. Chavez
    Enrique L. Chavez14 dagar sedan

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

  • chaitanya saraf
    chaitanya saraf14 dagar sedan

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

  • Esdeath ML63 5.5 Biturbo
    Esdeath ML63 5.5 Biturbo15 dagar sedan

    I love this channel ❤

  • yoy
    yoy15 dagar sedan

    to defeat entropy*

  • Yūichirō Hyakuya
    Yūichirō Hyakuya15 dagar sedan


  • ohmyethan
    ohmyethan16 dagar sedan

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

  • CFD and Freeride
    CFD and Freeride16 dagar sedan

    The animations look like the game Spore! Nice!

  • Shyla Giroux
    Shyla Giroux16 dagar sedan

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

  • justcallmedoggie
    justcallmedoggie16 dagar sedan

    "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.17 dagar sedan

    9:40 are you Duolingo?

  • Paul Hartman
    Paul Hartman17 dagar sedan

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

  • Zelda Dude
    Zelda Dude17 dagar sedan


  • FuegoIron 278
    FuegoIron 27817 dagar sedan

    so remember: the mythocondria is the powerhouse of the cell

  • Xaphiron McBryde
    Xaphiron McBryde17 dagar sedan

    *The dislikers were religious people*

  • Ainlex Levitani
    Ainlex Levitani19 dagar sedan

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

  • Tyler C
    Tyler C19 dagar sedan

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

  • Jit Boy
    Jit Boy20 dagar sedan

    the universe is not dead lol its very much alive

  • DanielGamer2467
    DanielGamer246720 dagar sedan

    that name is in Magyar if im correct

  • Trav James
    Trav James20 dagar sedan

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

  • Derek Ellis

    Derek Ellis

    19 dagar sedan

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

  • doggodiggin
    doggodiggin20 dagar sedan

    ANIME BETRAYAL i started laughing

  • Domi B.
    Domi B.20 dagar sedan

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

  • Xx softplanet xX
    Xx softplanet xX21 dag sedan

    Planets need solar rediation

  • Gaz 955
    Gaz 95521 dag sedan

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

  • Derek Ellis

    Derek Ellis

    19 dagar sedan

    It's an older meme from I think 2019

  • Finn
    Finn21 dag sedan

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

  • Indrid Cold
    Indrid Cold21 dag sedan

    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 Lam22 dagar sedan

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

  • Paula Nocu
    Paula Nocu22 dagar sedan

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

  • Jeni Xavier
    Jeni Xavier22 dagar sedan

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

  • Anonymus
    Anonymus22 dagar sedan

    4:19 Now you can eat sunlight!