String Theory Explained – What is The True Nature of Reality?

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  • Published: 01 March 2018
  • Is String Theory the final solution for all of physic’s questions or an overhyped dead end?

    This video was realised with the help of Dr. Alessandro Sfondrini and it was funded by SNSF under Agora Grant n. 171622 and through the NCCR SwissMAP: The Mathematics of Physics.

    See also our video on the black-hole information paradox: bit.ly/2DU6p8P

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    String Theory Explained – What is The True Nature of Reality?

Comments • 14 221

  • Kurzgesagt – In a Nutshell

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    • D P
      D P  1 weeks back

      Kurzgesagt – In a Nutshell you guys are AWESOME!!! and I try to tell EVERYONE about your channel because you guys there have helped to enlighten my way or path so I owe you a very large THANK YOU. You guys do great things in the realm of helping us humans understand ourselves and the world around us...it’s a darn beautiful thing! Please, continue being GREAT! 👍🏼😉✌🏼🙏🏼

    • mountaingoat1003
      mountaingoat1003  1 weeks back

      @Zapy Then you should start a cult.

    • mountaingoat1003
      mountaingoat1003  1 weeks back

      @TheShunmu I want to know that too.

    • mountaingoat1003
      mountaingoat1003  1 weeks back

      @Kamanasish Debnath What? The image showed more wavelengths per unit of space. The narrative said 'more and much smaller wavelengths, but more wavelengths means more energy.'

      It's a video designed for mass consumption even people who dropped out of high school can watch it. It might not be as articulate as you like, but it was not wrong.

    • Zapy
      Zapy  1 weeks back

      What if there was no reality? that we are dreaming? And when we die we wake up?

  • Loubinaddict
    Loubinaddict  7 hours back

    From the comments, I was right to be confused about the explanation of the Heisenberg principle. I'm surprised you didn't use the ant on a string metaphor to describe the string theory, it's the easiest one to get for me.

    • Liran Barsisa
      Liran Barsisa  12 hours back

      3:55 Why gravity is a problem exactly?
      Why the need for string theory, and why does it need 10 dimensions?
      And how light is explained in both of the point-particle and string theories?

      • Almant Pavlov
        Almant Pavlov  16 hours back

        Me at the start of the video:
        "Woho! Let me learn about the reality!"

        The end of the video:
        "Can you explain this... In a nutsh... Ok, in a bigger nutshell?"

        • Karan Bellak
          Karan Bellak  19 hours back

          4:42 It was at this moment that music became uprising, making us feel smarter...

          • rwven weiss
            rwven weiss  20 hours back

            I need some answers before my report tomorrow and yet I’m having a hard time understanding string theory. I tried reading comments below but all of them are useless

            • Animesh Siwakoti
              Animesh Siwakoti  1 days back

              I love the music y’all use

              • Riko Saikawa
                Riko Saikawa  1 days back

                This is simply quackers

                • LeTtRrZ
                  LeTtRrZ  1 days back

                  Finally a good description of Heisenberg uncertainty. There is nothing spiritual going on, it has nothing to do with consciousness. Light is simply slamming into particles and moving them.

                  • 43nostromo
                    43nostromo  2 days back

                    String Theory and String Cheese. Two brilliant ideas that are widely misunderstood.

                    • idk what username to use

                      k just a quick rant that has absolutely nothing to do with this video, but yet the ad before it. it showed clips of people with darker skin washing themselves with something and it making them pale white. excuse me wtf? why is this an ad? EXPLANATIONS. anyway great video!

                      • Hanif Ayyash
                        Hanif Ayyash  2 days back

                        I think all of us had an opportunities to become a quantum physicist altough none of us had the same potential

                        And i admit that "fun" is an outstanding tool to understand anything

                        • The Elysium Times
                          The Elysium Times  2 days back

                          I'm a bit disappointed by this application of the profound theory.... :(
                          If anyone had trouble understanding, I highly, highly recommend searching for: "Dr Quantum - Double Slit Experiment"

                          • RedPug
                            RedPug  2 days back

                            Why tf is everyone saying they can’t understand this in retarded and even I get it

                            • mediocre ice rink parodies

                              You just confused the observer effect and Heisenberg's uncertainty principle. From the wikipedia page on the uncertainty principle:

                              "Historically, the uncertainty principle has been confused with a related effect in physics, called the observer effect, which notes that measurements of certain systems cannot be made without affecting the systems, that is, without changing something in a system."

                              • Lil Science Nerd
                                Lil Science Nerd  2 days back

                                theories are what im very passionate about, especially the parallel universe thingy

                                • Dun Onn
                                  Dun Onn  2 days back

                                  So basically nothing

                                  • Frank Cedric Cabulang
                                    Frank Cedric Cabulang  2 days back

                                    I have to stop every two minutes to allow my brain catch its breath.

                                    • Cagan Barin Arda
                                      Cagan Barin Arda  3 days back

                                      olum mğkemmel

                                      • Ramakanth Bhat
                                        Ramakanth Bhat  3 days back

                                        3:30 I understood about string theory

                                        • SaltyDzn • Designs
                                          SaltyDzn • Designs  3 days back

                                          6:20 QuIcK mAfS

                                          • Seema GuPtA
                                            Seema GuPtA  3 days back

                                            Sucked

                                            • ColWilBald
                                              ColWilBald  3 days back

                                              But it’s just a theory...

                                              *A GAME THEORY*

                                              • el famoso
                                                el famoso  3 days back

                                                This channel is great

                                                • Steve Harris
                                                  Steve Harris  4 days back

                                                  Me at the beginning of vid, hmmm could be interesting. Me at end of vid...WTF!

                                                  • Yord
                                                    Yord  5 days back

                                                    What if you don't remove the other 6 dimensions and just accept we are 3-dimensional beings?

                                                    • Anthony Becker
                                                      Anthony Becker  4 days back

                                                      The idea is that it would be useful to make predictions about our 3D world from the higher dimensional math, without needing to talk about the higher dimensions in the prediction.

                                                      It's like, when watching a weather prediction, you don't necessarily want to hear all the math and data that went into the prediction, you just want to know whether to bring an umbrella to work tomorrow.

                                                  • kurt yap
                                                    kurt yap  5 days back

                                                    is watching all kurzgesagt videos addictive

                                                    • Abhilash
                                                      Abhilash  5 days back

                                                      5:41 Not if you consider them as sheets.

                                                      • SURAJ JITH.K
                                                        SURAJ JITH.K  5 days back

                                                        Great animation

                                                        • Caleb Delatorre
                                                          Caleb Delatorre  5 days back

                                                          Why does string theory need 10Dimensions?

                                                          • Caleb Delatorre
                                                            Caleb Delatorre  5 days back

                                                            😂Why does a point have to be more complex! A vibrating string(frequency) is attracted to gravity(another string). Or light/heavy particles vibrating towards a low/high frequency!
                                                            WhatAbout the sound waves and metal sheets/salt&sand

                                                            • Tekaruchi Nodotome
                                                              Tekaruchi Nodotome  5 days back

                                                              Trippingly comprehensive

                                                              • nemesis GD
                                                                nemesis GD  6 days back

                                                                4:38 theory of everything .. geometry dash...anyone?

                                                                • Ordinary Engineering student

                                                                  Explain Kurzgesagt in theoretical manner if possible!

                                                                  • dudes vlogs
                                                                    dudes vlogs  6 days back

                                                                    No brain cells died during making of this video

                                                                    • ThinkTank255
                                                                      ThinkTank255  3 days back

                                                                      But they all died from watching it.

                                                                  • Trece Olsimar
                                                                    Trece Olsimar  6 days back

                                                                    So, is string theory plausible if we accept that there are more dimensions than what we puny humans are capable of perceiving?? I mean come on, we are probably not the pinnacle of creation after all.

                                                                    • Brandon Liao
                                                                      Brandon Liao  6 days back

                                                                      So much knowledge and concepts available to us. What a time to be alive!

                                                                      • ThinkTank255
                                                                        ThinkTank255  3 days back

                                                                        So much bullshit. What a time to be alive!

                                                                    • Ming Lee
                                                                      Ming Lee  6 days back

                                                                      一脸懵逼

                                                                      • Ai Quoc Heller
                                                                        Ai Quoc Heller  6 days back

                                                                        I love intelligence

                                                                        • Prohibition ist für mich Abfall

                                                                          6:20 We need to thank Big Shaq that he had this genius idea.

                                                                        • OSKESIS
                                                                          OSKESIS  7 days back

                                                                          The scientist poking at that cute bird....heheje it was so cute animation

                                                                          • Jamie Townsend
                                                                            Jamie Townsend  7 days back

                                                                            Wait..... an electron orbit a nucleus which is made of protons and neutrons so the thing they are describing at 3:08 is not an electron. ALSO electrons have a negative charge

                                                                            • Jim Bob
                                                                              Jim Bob  1 weeks back

                                                                              String theory is welfare for physics undergrads - think of it like the government paying unemployed people to dig holes in the ground

                                                                              • Hamdan Zahid
                                                                                Hamdan Zahid  1 weeks back

                                                                                I just came here for the *Quick Maffs* jokes😂

                                                                                • lemonsauce_
                                                                                  lemonsauce_  1 weeks back

                                                                                  Dont let string theory tie you in knots

                                                                                  • Toba TheRawringKing
                                                                                    Toba TheRawringKing  1 weeks back

                                                                                    How would yall feel if it turns out that einstein's theories and discoveries were proven false I think I would cry bcs my existence was a lie

                                                                                    • Owen Roth
                                                                                      Owen Roth  1 weeks back

                                                                                      your iq needs to be equal to this channels subs to understand these videos

                                                                                      • aditi s
                                                                                        aditi s  7 days back

                                                                                        Owen Roth 😂😂

                                                                                    • SAMIR ALI
                                                                                      SAMIR ALI  1 weeks back

                                                                                      This animation are *AWESOME* .