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

## 92 thoughts on “String Theory Explained – What is The True Nature of Reality?”

1. Kurzgesagt – In a Nutshell says:

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

2. baby-got-back says:

As a great man once said : BAZINGAH

3. Science! says:

You skipped the part were we had to first invent a language to tell our story in so it'd make sense.

4. Science! says:

Perhaps we first need to invent a new language before we can describe the whole universe? I mean, if our current mathematical models don't jive, maybe we need new mathematical languages? Everything from the human perspective is relative. There's always a point of reference for anything we perceive.

Perhaps that's why we chose to define space/time in relative terms. We perceive the universe in 3, or 4 dimensions, however you choose to look at it. Space/time is perceivable to us in relative terms, so it is describable in relative terms. Gravity and mass too are perceivable and describable in relative terms.

What do you do if there are more than 3 or 4 dimensions and there's no way to perceive anything outside of those limits? What do you do if there IS a way to perceive them in some way? Is it even possible to create a language to describe such things with so little information? Will we EVER be able to describe the universe in such detail?

Admiring math is like admiring poetry, it has aesthetic value, it is art by definition. Science is something more though. It has to be able to predict and describe and be testable. If we can't either bring two theories together or eliminate one or both to replace it with a new one, we may still have something useful, but we won't have a theory of everything. We won't truly understand how these things are connected. We need to be able to relate them to each other in some way.

The funny thing about math is you can pretty much make it do what you want, you simply need to define the rules. Einstein's breakthrough came from not manipulating math, but using only empirical data and ruminating on the possibilities of what that data meant. The math came after. String theorists are doing art, not science. Use Empirical data to figure it out first THEN do the mathematics, you might even have to create a language to do that….

Percussion and String Theory! Heisenberg and the Quantum World are Amazing. The Penguin trying to Play Zelda on SNES is neat too. The turtle is a spin off from Discworld.

6. হজরত মহম্মদ খানকিরছেলে says:

We cant imagine 4th dimension.and string theory has 10 dimension.

7. Денис Никитин says:

It's 2am, why

8. Phos4us says:

False, everyone knows reality is created by “universe stuff”

9. Sean Pecson says:

So bassically we made some kind of quasi religious belief/doctrine to explain the universe and everything? Who said sceience and religion can’t marry?

10. Thomas JR. says:

This was your best video ever!! Very well written, no errors, all the info matches what I knew previously. Kudos

11. Pranav Chopra says:

Can't be go further like from point to string,and then from string to sheet?

0:34 When you use a really fancy transition in Powerpoint

13. Marco Maiocchi says:

Great video, just one thing. "True nature of reality", please stop using this sentence. It is a very dangerous one and it has doomed thinkers to run in circles until Wittgenstein finally solved the problem writing his Tractatus. When you say "true nature of reality" you mean just "that makes sense to us humans". How can the true nature of reality be so limited? It will never be contained into our human rules (math & language) and it will never be understable for us. Sad yes, maybe a bit too much philosophical, but it's key. Hawking was wrong, you cannot underestimate philosophy when thinking so big.

14. swampthing401 says:

That Zelda reference was awesome

15. Michael Vue says:

Who didn’t learn a thing??

16. aflah palara P says:

17. T R U T H says:

It doesn't exist.

18. Wrath HD says:

90% of the comments are fake ass 5heads and are actual retards

19. whynottalklikeapirat says:

I am into Swing Theory

20. Foulty says:

Is it possible to move things with our vision if we are physically interacting with what we look at

21. PH. Graphics says:

Damn you internet connection! I want to watch this video at 60fps! 😭

Im fascinated!!!!!!!NO WORDS!!!!!!!

24. Ya,Mü. Emirhan öztürk. says:

💥👾💥

25. Ya,Mü. Emirhan öztürk. says:

WHAT?

26. TurkeyForLive_XD :b says:

BIG BRAIN!!!!

27. Jonny Stephen says:

Me: heard Hyzeberg
My brain: Skyler i'm not in danger, i'm the danger!

28. Dragan Miscevic says:

Excellent explanation of complex principles! Thank you!

29. Michael's wayne Hamilton says:

Otherwise it goes bad, gravity fields fail and teachers the wrong together

30. Snip x Hunt man says:

String theory is nothing but a foolish answer to explain the theory of everything. Its like when you are under attack in a chess game, for example your bishop moves away from a danger square and it becomes safe but the bigger problem is that you left a gap for your king to be attacked. What Im saying basically is that we need to look at every theory so far, look at the bigger picture, the whole chessboard, not only one piece. What the person behind this theory deosn't realise is that he solved the problem between quantum physics and theory of relativity, but he introduced a bigger problem where he has to change every theory we found so far. There is a solution but we need to open our field of view wider. Look at the picture that is bigger than the big picture.

31. Maury G says:

I think we will become a type 2 civi when we know everything about the universe

32. ThE BiNdiNg iS fRaGiLe says:

Kurzgesagat:2+2=4
Vectors:allow us to introduce ourselves

33. TheLogan47 says:

Hello, Internet. Welcome to String Theory

34. no name says:

Minus one that's three quick math

35. Sir Loin says:

36. chu melon says:

i came here because of loona 💁

37. Nexus James says:

[4:43] The Theory of Everything.

Hmm…

HMMMM…

[Geometry Dash flashbacks]

38. Ayush Anand says:

At 2:07 you said with more wavelength more energy… It should be more frequency results in more energy. E = hc/wavelength

If gravity could be unified with the other forces then what would that mean for us? As imperfect as our understanding of physics is many technologies and sciences have been developed from what little we know. So if we could enlarge our understanding by unifying gravity what exactly can we develop from that breakthrough? What machine, medicine, or chemistry could be possible if the unified field theory was complete?

40. galaxy guy says:

me: 3:30

really i didnt learn it

41. Rita Medal says:

I only watched this because of Sheldon Cooper.

42. Jeff Boyd says:

This video was somewhat poorly done, because it left out some very fundamental pieces of string theory, which led to an incorrect explanation.

Of the 10 dimensions of space, 9 of them are considered to be sub-dimensions, of the larger one known as "The Bulk." In the bulk, theoretical "branes" exist and on each brain, different types of universes, each with unique physics could exist. It is for this reason, that string theory cannot simply explain our universe. In order for the math in string theory to work, the multiverse would need to exist, thus the showing of more than 3 dimensions of space, which would not explain our universe as the end all, be all of everything.

43. Jeff Woo says:

44. malva_ diary says:

Truth of Universe can not be told it can only be experienced.

45. Amy Pond says:

Hi!! I just wanted to say that I loved watching this video. Oh, I also wanted to ask that since you've done a video on string theory, could you guys do one on loop quantum gravity?? Besides that question just good job overall and i hope you guys keep up the good work👍

46. Stefan Reich says:

Can you really say "true nature of reality" and ignore all spirituality ?

Typical physics myopia

47. mishel mak says:

48. Philip Turner says:

A blurry thing with a sphere of influence….sounds like me.

49. Philip Turner says:

Just like….the single most stupid assertion of the human mind.

But hey.
THAT'S JUST A THEORY.
A FILM THEORY!

51. Chidi Akara says:

A misrepresentation of the heisenberg uncertainty principle. Oh my!

52. Pickled Bird Spaghetti says:

Gravity: I'm not like the other forces

53. DogPanda 2016 says:

Is the black duck swearing when he lost when a game that me! :v

54. zergmaster22 says:

Magnificent

55. BB B says:

HISENBERG WAS A FAMOUS METH COOKER AND DEALER.

56. BB B says:

Holy fuck my brain hurts just watching this…how do these fucking nerds do this for a living? Like wtf…why would anyone wanna do shit like these? Just get a regular jobs u nerd losers.

57. Dania Freemynd says:

Anyone else come here after watching The Big Bang Theory?

58. Shannen Fontanilla says:

I went here because I don't understand Sheldon, and now, I still don't understand Sheldon.

59. Golokesh Mukherjee says:

Please make a video on theory of everything

60. Athanasios Pantiskas says:

Sheldon Cooper wants to know your location

61. Hate & Virtue says:

🤣

62. HamsterOfTime says:

1:43 animal abuse

5:25 yeah but when is electroman adventure

64. Techie Teens says:

Nah you are wasting time. Even Dr. Sheldon cooper accepted it has no scopes.

65. Cee says:

It should have said observer effect, not Heisenburg uncertainty.

66. David Smith says:

Nice zelda reference 🙂

67. jumpinggalorre plays says:

5:43 9th dimension : me when I try to get out of school without getting in trouble

68. Mohsin Elazouzi says:

6:41 THE BUDGET 😐

69. Champ Champ says:

Anyone here because they wanted to know what Sheldon does for work?

70. arzoo sid says:

Is this a joke

71. T C says:

I feel you were stringing us along.

72. Wolf says:

I really want to understand all of this but I feel like I'm too dumb for this 🙁

73. Ether ether says:

Gest idea !

74. Merle May says:

Wow! Like einsten…bhor …rutherford…NASA…gravity…space..string…quantum…i guess i have to update my ouija board with these info….

75. Mörci R. says:

Do u just translate the videos of your other channel (German one) or do u do completely new ones?

76. Christian J says:

I cite your videos in many of my projects. Free publicity! Thanks for making such amazing videos!

77. Oskar Wasilewski says:

2:25

78. Angélina g says:

Physic is awesome

79. Random Chicken says:

6:20 minus 1 thaz 3 QUICK MAFs

80. Nawwk says:

The theory of everything is……..42

81. Arnold Aguirre says:

Thanks

82. Kreuz Ritter says:

I found the theory of everything! I call it "One for All".

83. Christofer Fellicious says:

Why should gravity be defined as a force? Isn't gravity the bending of space time by mass and not exactly a force?

84. Nils Johansson says:

Yep. I understood. All of it.

85. Neon Jay says:

Seek Jesus and forget this rubbish

86. TheDigitalGoose says:

String theory has been disproven recently and the theory of relativity seems the most likely now

So, if i understand that video right, we must know all about gravity, and 11 demension, to solve stringtheory?

88. Xpyeun says:

I'm pretty sure that's not how the Heisenberg uncertainty principle works

90. Eagle Beagle says:

5:31 ba dum tss

91. Eagle Hunter says:

Perhaps we're trying to look at and study something that we are actually apart of? How do you see something when you're inside of it?

92. Eagle Hunter says:

When the day comes where Scientist have finally solved this mystery – we will finally have scientific proof of the existence of God.. Then they'll spend the next hundred years trying to disprove what they themselves have already proven.