Quantum Computers Explained - Limits of Human Technology

  • Published on Dec 8, 2015
  • Where are the limits of human technology? And can we somehow avoid them? This is where quantum computers become very interesting.
    Check out THE NOVA PROJECT to learn more about dark energy: www.nova.org.au
    Support us on Patreon so we can make more stuff: www.patreon.com/Kurzgesagt?ty=h
    Get the music of the video here:

    Wakelet: wakelet.com/wake/42ji9UMJzN?v=st
    Or follow us on social media or reddit:
    Tamago231, H.H. Lewis, Kirin Tantinon, David, Max Lesterhuis, Marek Belski, Gisle, Colin Millions, Gregory Wolfe II, Lenoir Preminger, Abel X, Matt Knights, Amjad Al Taleb, Ian Bruce, Kris Wolfgramm, 麒麟 于, Christopher Shaw, 靖羊, Tomas Grolmus, Essena O’Neill, Kyle Messner, Pedro Devoto, Mark Radford, Ann-Marie Denham, Davide Pluda, Rik Vermeer, Justin Ritchie, Nicole White, Whireds, Claus Vallø, Jason Talley, Andrew Wu, Christian Dechery, Michael Howell, Michal Hanus, Cavit, Amary Wenger, JDKBot, Jason Eads, FreedomEagleAmerica, Roberto Maddaloni, TiagoF11, Harsha CS, Abhimanyu Yadav, Tracy Tobkin, Mike Fuchs, Elizabeth Mart, Jacob Wenger, Jeff Udall, Ricardo Affonso, Mauro Boffardi, Audrin Navarro, Troy Ross, Keith Tims, Santiago Perez, James, Jack Devlin, Chris Peters, Kenny Martin, Frederick Pickering, Lena Savelyeva, Ian Seale, Charles Ju, Brett Haugen, David Ramsey, Benjamin Dittes, Michelle Schoen, Albert Harguindey Sanchez, Michael King, Alex Kyriacou Alla Khvatova Thomas Rowan, Siim Sillamaa, David Bennell, Janzen,Bryn Farnsworth, Adam Recvlohe, Manuel Arredondo, Fred McIntyre, Maldock Manrique, Дмитрий, Ishita Bisht, Jake Ludwig, Zach Seggie, Casey Sloan, Myndert Papenhuyzen, rheingold3, AncientCulture, Orion Mondragon, Jan, Michael Kuperman, Alexander Argyropoulos
    Quantum Computers Explained - Limits of Human Technology
    Help us caption & translate this video!

Comments • 13 743

  • Kurzgesagt – In a Nutshell

    There's brand new stuff in the Kurzgesagt Merch Shop. Check it out here: shop.kurzgesagt.org

  • Prabhu K
    Prabhu K Hour ago

    Super presentation

  • vahid khezer
    vahid khezer 2 hours ago

    Drastically disappointing... used to learn stuff from this channel, now its just what you read on science magazine cover...

  • 오윤석
    오윤석 10 hours ago +1

    4:55 Can anyone tell me what this 'H' means?

  • Sloth Armstrong
    Sloth Armstrong 19 hours ago +1

    How the frick do they figure this out to begin with; and in such a short amount of time too.

  • Matthew Chen
    Matthew Chen 21 hour ago

    So my computer is child slavery?

  • Trippy 741
    Trippy 741 23 hours ago

    *POWER.... OVERWHELMING!!!!!!!!!!!!!!!!*

  • Huzaifah Ahmed
    Huzaifah Ahmed 23 hours ago

    Can you do zero point energy in a nutshell?

  • Brian 38
    Brian 38 Day ago

    Can it run crysis?

  • jmooree30
    jmooree30 Day ago

    But can it run Crisis?

  • Cubik Gamer
    Cubik Gamer Day ago

    ( ͡° ͜ʖ ͡°)

  • BPAnything with Memes


    Ah. Geez.

  • Dan Ivanov
    Dan Ivanov Day ago

    3:08 why use photon polarization? isn't it simpler to use photon on or off?

  • Courz Secure
    Courz Secure Day ago

    i grasp it and not grasp it at the same time

  • Jun Shi
    Jun Shi Day ago

    1:42 only one was right it was the boy on the most left

  • Frank
    Frank 2 days ago

    but can it run minecraft?

  • Jakob Lorenz
    Jakob Lorenz 2 days ago

    The Rick and Morty Refference gave me the rest 😂

  • Mr Depressed
    Mr Depressed 2 days ago

    Can it run Crysis?

  • Mr Depressed
    Mr Depressed 2 days ago

    So there are bunch of 7 year olds in my PC being force to run Battlefield 1

    • swp with
      swp with 12 hours ago

      Now don't subject your 7 year olds to late night operations ( ͡° ͜ʖ ͡°)

  • Mr Depressed
    Mr Depressed 2 days ago

    I didnt understood anything

  • Nethascot X
    Nethascot X 2 days ago

    Hank Pym wants to know your location

  • John R
    John R 3 days ago

    No love for blastoise :(

  • Mr. Red
    Mr. Red 3 days ago

    The Quintana realm = time travel

  • Samir Lemrini
    Samir Lemrini 3 days ago

    Who didn't understand anything?

  • Marcello 3055
    Marcello 3055 3 days ago

    Do people honestly understand this, like, for real, or do they just pretend they do and assume that's how stuff work and then they do all kind of crazy stuff?

  • FarhanBD
    FarhanBD 3 days ago +1

    Is it wierd to think that an 11 year old can understand what he's saying, but adults can't?

    Oh, why did I say *11* year olds? Well, Multiply 2.3 times, take 50, and if you follow the rest in the reply section, well boom there's ma frickin age
    Yes pls like

  • carnage the carnotaurus

    I need to travel in time

  • Scott Kelley
    Scott Kelley 4 days ago

    My head hurts

  • Dee Devon
    Dee Devon 4 days ago +6

    Mom: What do you want for Christmas?
    Me: A quantum computer so I can simulate the tiniest bits of reality and find proteins to revolutionize medicine.
    Mom: ....

  • epic.mp3
    epic.mp3 4 days ago +2

    imagine running fortnite on this

  • Christophorus Nicko
    Christophorus Nicko 4 days ago

    In my "simple" thought, humans have no limit or atleast to be unknown coz sometimes the word "limit" and limit itself is something that we made by ourself :)

  • William Moriarty
    William Moriarty 5 days ago


  • Brandon Sergent
    Brandon Sergent 5 days ago +2

    "Revolutionize medicine." Your script had a typo there, I'm sure you meant "patent extortion."

  • Elliott 1
    Elliott 1 6 days ago

    I got completely lost around 4:54

  • Julian Jones
    Julian Jones 6 days ago

    Could you make a second video on quantum computers from the recent technological advances in the past few years?

  • Crimsonzilla63/Arkzorian mapping

    2:31 Rick and Morty reference!!!

  • 귤랭이
    귤랭이 6 days ago +1

    Aliens called: they want their friend (who is getting tortured to produce smaller transistors) back

  • Mauro Scimone
    Mauro Scimone 6 days ago

    A.I. Will be super powerful with Quantum Comp , Skynet will be possible

  • Sam the Gamer
    Sam the Gamer 9 days ago

    Hey Kurzgesagt, you forgot the “basics” part

  • Aman Messinezis
    Aman Messinezis 9 days ago

    this is amazing

  • New_Beginnings Xxx
    New_Beginnings Xxx 9 days ago

    This hurt my head

  • MrGilRoland
    MrGilRoland 10 days ago +1

    Watching in 2019. I’d like to reassure my fellow commenters from 2015: in 2019 we still have no idea about what quantum computer is. We actually have to rely on 4 years old videos trying to explain us what this is about, but still no joy.

  • Deepak Balraj
    Deepak Balraj 10 days ago

    Is it cool if I use snapshots of this video for my Engineering presentation?

  • Cross Van Dust
    Cross Van Dust 10 days ago +3

    Quantum Computer: (In Jevil's Voice) *I CAN DO ANYTHING!*

    **The World Revolving starts playing**

  • Tifa Yotefani
    Tifa Yotefani 11 days ago

    1:12 the binary says tвмь boring

  • jeffrey strain
    jeffrey strain 11 days ago


  • PikaSurprise Ag
    PikaSurprise Ag 11 days ago

    Dude when the music started at 0:45 I thought chasing cars was gonna start

  • U Miami
    U Miami 11 days ago +4

    I love the game boy references, the Zelda reference, and the Zelda style music.

  • I GOLF 9
    I GOLF 9 12 days ago

    But can we time travel??

  • Anatoli Tihomirov
    Anatoli Tihomirov 12 days ago

    Where did all that technology boost came from. Before 200 years there was no radio and now we can see even the black hole on other galaxy. This is getting interesting for the next few centuries. I hope memes doesn't destroy it tho (joke) 😅

  • yujinn g
    yujinn g 12 days ago

    I'm curious about the physical size of quantum computers vs the typical computer, relative to computing power

  • Cycling Cycles
    Cycling Cycles 14 days ago

    I can smell colours now.

  • WalrusesAreAwesome
    WalrusesAreAwesome 14 days ago

    @ 1:44 all except the left child got it wrong

  • wow123 123
    wow123 123 14 days ago

    1:44 this is how bugs are formed

  • DontTakeCrack
    DontTakeCrack 14 days ago

    this is actually a really good explanation for someone who knows basic math and computers, thanks!

  • Unknown Damn
    Unknown Damn 14 days ago

    Mindblown... Literally... :/

  • Mena Vivar
    Mena Vivar 14 days ago

    What if we somehow found out how to manipulate quantum energy with a quantum computer?

  • simon พัตเตอร์

    Like when this time "wow your ex really hates you *STEALING CREDIT CARD DATA*"

  • Ham_ er
    Ham_ er 15 days ago +1

    6:45 that bird just like “wah hapen”

  • amjad moqbel
    amjad moqbel 15 days ago

    I'm just gonna act like I know what he is saying

    RAIDON JOHN RUEDA 15 days ago +5

    Wow. technology the size of our blood cells?

    Those parts are as big as my brain!
    Wait, what?

  • Timothy Akinsuyi
    Timothy Akinsuyi 15 days ago +20

    Watch this before Avengers Endgame

    • xCARLOx RO
      xCARLOx RO 13 hours ago +2

      And Fuck You, random citizen!
      I saw already, but still.....

    • fireball channel
      fireball channel 4 days ago

      +CoolCreeper39 I'm the one who is immune to endgame spoilers(I don't care).

    • CoolCreeper39
      CoolCreeper39 4 days ago +1

      Timothy Akinsuyi 🅱️ecause iron man dies

  • derek flegg
    derek flegg 15 days ago

    If there is a sci fi type multi-verse where everything that can happen happens, would that make the universe like a quantum computer?

  • the hixie
    the hixie 15 days ago

    but can it run doom?

  • Ancient Camouflage
    Ancient Camouflage 16 days ago +4

    The visual representations allow this video to be understanded clearly. Well done.

  • NX_Glitch
    NX_Glitch 16 days ago


  • Kawser Latif
    Kawser Latif 16 days ago

    Then AI takes over quantum computers

  • Aakash Patel
    Aakash Patel 16 days ago +1

    When computer smoke weed it becomes quantum computer.

  • Kalificus
    Kalificus 16 days ago

    I dont understand what exactly the computer is detecting. A normal computer detects the presence of electrons to flip a switch. A quantum computer is detecting the spin of an atom? or its polarity? and what atom is it detecting? I assume the particle has to be a special kind that can 'exist in multiple states simultaneously', so what particles are quantum computers using, and why are they in a state of multiple existences

  • Justin Lee
    Justin Lee 16 days ago

    But can it run Crisis?!

  • Sgt. Surge
    Sgt. Surge 16 days ago +18

    Does a quantum computer support Linux?

  • Lord Ender
    Lord Ender 16 days ago

    Who narrates these videos? Sometimes when I dont get something, i just listen to the voice and it clicks xD

  • Nayeem Sama
    Nayeem Sama 16 days ago +3

    Didn't understand anything in the VIDEO!!!!!........😅😅😅😅😅😅😅😅😅😅😅😅

  • Christopher Ward
    Christopher Ward 17 days ago

    1 question what?

  • Giulio Personeni
    Giulio Personeni 17 days ago

    Guys this cannot exist. Really 😂

  • Bennett Carlson
    Bennett Carlson 17 days ago +24

    If quantum entanglement can send information regardless of distance does that mean you could send information faster than the speed of light? Imagine the possibilities if you want kurzgesgat to make a video on quantum entanglement communication like

    • Toopo Bomaye
      Toopo Bomaye 2 days ago

      +Matea Cannavino yeah but isnt that theory base on opservations made between atoms that are at least less than a mile away from each other ?
      Of course its going to seem like its instantaneous i mean...

    • Matea Cannavino
      Matea Cannavino 6 days ago

      There's a theory that during entanglement the quantum atoms become one, and reactions are simultaneous.

    • King Taco
      King Taco 15 days ago +2

      LAVAondaCOMUTER I literally said that. Can you read my reply?

      LAVAondaCOMUTER 15 days ago +1

      +King Taco according to the laws of physics nothing can be processed or can travel faster than the speed of light as beyond that point there is an abyss of nothingness, at least of what we know, considering science hasn't really defined "nothing" yet.

    • King Taco
      King Taco 15 days ago

      It sends communication slower than light speed.

  • esilence
    esilence 17 days ago

    cracking a password by bruteforce in a breeze is shown here like a positive thing, i wished it was shown how secure things would get instead!!

  • nicholas ladefoged
    nicholas ladefoged 17 days ago

    A shame the first graders makes errors tho xD

  • Goos
    Goos 17 days ago +10

    2:32 I like the Rick and Morty reference

  • Nic-hol-ass Grain
    Nic-hol-ass Grain 17 days ago +1

    But can it run GTA V?

  • Por Entre Páginas
    Por Entre Páginas 17 days ago +52

    Was I the only one surprised by the size of the transitor?

  • joey kill
    joey kill 17 days ago +1

    How about some Quantum Cola

  • ChaikaFace
    ChaikaFace 17 days ago +1

    In 2050, people would play games on a quantum computer.

  • Sandeep Mulchandani
    Sandeep Mulchandani 18 days ago

    Can these computers understand women?

  • Torres
    Torres 18 days ago +4

    Multiverse confirmed

  • blob fish
    blob fish 18 days ago +12

    boi’s now we can play minecraft with the realistic textures

  • Seiryoku Bonne
    Seiryoku Bonne 18 days ago

    MFW a subject is so complex that even being an explanation "in a nutshell", it is still like *blank stare, drool* "Am I smarter now by proximity?"

  • Alec C
    Alec C 18 days ago

    this is the first video on kurz that i cant follow, its too hard to follow for me

  • The Elite Castilano
    The Elite Castilano 19 days ago +4

    and this is a simplified version of quantum computers imagine past that

  • Aditya Apte
    Aditya Apte 19 days ago

    This... doesn't make sense to me... :-/

    • Aditya Apte
      Aditya Apte 17 days ago

      I freaked the hell out when I got a notif saying FBI replied.

    • FBI
      FBI 17 days ago +1

      Basically 1's and 0's act like on and off switches for traveling electrons yadda yadda yadda.... Can be put into groups such as AND, OR, NOT, NAND, which basically dictates whether a bunch of 1's and 0's become a 1 or 0 blah blah ... Quantum stuff appears. Now on and off become angry modern feminist and saying stuff like gender is fluid until looked at... Makes predictions easier, but lacks the security of our everyday computers, but scientists working to fix that problemOKAYTHEEND!

  • Wenceslao Futanaki
    Wenceslao Futanaki 19 days ago

    well computers will get big again. no other way for a while.

  • Вениамин
    Вениамин 19 days ago

    06:12 👌

  • Jade Windham
    Jade Windham 19 days ago

    The thumbnail looks like pokedex... just sayin

    SCHRODINGER’S CAT 20 days ago +1

    this is one of the best videos on youtube by far

  • v42o
    v42o 20 days ago

    The Australian science academy is a joke.. they only invest in research that promotes mining and harvesting of fossil fuels and they have been caught out falsifying research results to promote government agendas and cover up ecological disasters.
    Well advised not to associate with them.

  • Yang hugo
    Yang hugo 20 days ago +1

    do not understand. if the status is change able how come you know the answer. you can not say it could be 0 and i can be 1 as well🤔

  • tuxmusicman
    tuxmusicman 20 days ago +1

    schrodinger's qubit

  • egfazza
    egfazza 20 days ago +1

    My brain hurtz

  • Logan Box
    Logan Box 21 day ago


  • Mojmír Heryán
    Mojmír Heryán 21 day ago