Non-Euclidean Geometry Explained - Hyperbolica Devlog #1

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  • เผยแพร่เมื่อ 10 พ.ค. 2024
  • I present the easiest way to understand curved spaces, in both hyperbolic and spherical geometries. This is the first in a series about the development of Hyperbolica.
    Chapters:
    0:00 Intro
    0:24 Spherical Geometry
    2:33 Hyperbolic Introduction
    3:53 Projections
    5:37 Non-Euclidean Weirdness
    8:31 Non-Euclidean Formulas
    10:20 Outro
    Hyperbolica
    Trailer: • Hyperbolica: A Non-Euc...
    Steam Page: store.steampowered.com/app/12...
    Merch: crowdmade.com/collections/cod...
    Henry Segerman
    / @henryseg
    • Illuminating hyperboli...
    HyperRogue
    roguetemple.com/z/hyper/
    If you like the things I do and want to support the channel:
    / codeparade
    ko-fi.com/codeparade
    Music:
    "Glass Waves" By Phil K
    www.phil-makes.com/noise

ความคิดเห็น • 3.7K

  • @outdateduser7036
    @outdateduser7036 3 ปีที่แล้ว +9033

    When you stop paying attention in calculus for 3 seconds

    • @illyias
      @illyias 3 ปีที่แล้ว +195

      Too real

    • @RadeDobison
      @RadeDobison 3 ปีที่แล้ว +118

      holy shit how did you do that lol

    • @axion986
      @axion986 3 ปีที่แล้ว +43

      Sorry can someone explain this to me? I didn't take calculus and now I feel left out.

    • @Legendnewer
      @Legendnewer 3 ปีที่แล้ว +224

      @@axion986 Basically you lost track of everything, you don't understand anything of what the professor is saying, it can be any topic but calculus is a prime example

    • @Nekiplex
      @Nekiplex 3 ปีที่แล้ว +21

      We dont even need to know calculous in my country so i have no clue what it is. it is taught but you have to finish school. Its litterally not an option for any GCSE math tests. So you could just never know about it for your entire life

  • @Starnoxiar
    @Starnoxiar 3 ปีที่แล้ว +5800

    "But first we have to talk about parallel universes" nice.

    • @icicleditor
      @icicleditor 3 ปีที่แล้ว +262

      I’ll be honest, that killed me.

    • @wacesferpit
      @wacesferpit 3 ปีที่แล้ว +339

      specially love the Mario 64 extra reference with the music

    • @ber2996
      @ber2996 3 ปีที่แล้ว +125

      To answer that, we need to talk about parallel universes

    • @OneShot_cest_mieux
      @OneShot_cest_mieux 3 ปีที่แล้ว +50

      I think it's a reference to the youtube channel TerminalMontage

    • @yasd8493
      @yasd8493 3 ปีที่แล้ว +208

      @@OneShot_cest_mieux *Pannenkoek2012
      The meme started there

  • @lordvincenteperez4196
    @lordvincenteperez4196 2 ปีที่แล้ว +634

    can you just imagine beings of 4D using our 3D to explain 5D

    • @tyresefarrell
      @tyresefarrell ปีที่แล้ว +62

      Quite literally no🤣

    • @shouvik8267
      @shouvik8267 ปีที่แล้ว +65

      We perceive 3d with 2d images, so 4d beings would be able to percieve 4d with 3d images. It's like looking at all sides of a cube at the same time, but sadly I can't even begin to imagine it for I am confined within limits of 1d brain.

    • @NotRealChatGPT
      @NotRealChatGPT ปีที่แล้ว +14

      @@shouvik8267 i have a 0d brain

    • @reizinhodojogo3956
      @reizinhodojogo3956 ปีที่แล้ว +6

      @@shouvik8267 transparent cube: bro where i am i don't exist?

    • @NotRealChatGPT
      @NotRealChatGPT ปีที่แล้ว

      @@reizinhodojogo3956 no because i'm going on a walk and i and you are just being mad and not just being scared 😟 not being a pain to you help you with this and your life in your hand ✋ and a dream 🛌 and a new life you are a beautiful 🤩 woman 👩 you can do nothing but like 👍 you don't need a job that i you have no way more to get it into the center island 🏝️

  • @entitydotexe6138
    @entitydotexe6138 2 ปีที่แล้ว +346

    CodeParade: "Stay Hyperbolic"
    Me: *proceeds to occupy the entire volume of the universe*

    • @lullabypoppera3914
      @lullabypoppera3914 2 ปีที่แล้ว +17

      There's not enough room for the two of us!

    • @placeholdername3907
      @placeholdername3907 ปีที่แล้ว +4

      @@lullabypoppera3914 then we're just gonna have to share
      *cue just the two of us

    • @lavasqrl702
      @lavasqrl702 ปีที่แล้ว +6

      @@lullabypoppera3914 Correction: Three! That's right, I sort of understood it! *proceeds to occupy the entire volume of the multiverse*

    • @jackgreenearth452
      @jackgreenearth452 ปีที่แล้ว +1

      @@lullabypoppera3914 Just kidding! There's plenty of room here in hyperbolic space! (paraphrased from Hyperbolica because I can't be bothered to open up the game and talk to that guy in the badlands just for a youtube comment)

  • @Roter_Wolf
    @Roter_Wolf 3 ปีที่แล้ว +1059

    "Honey, can you knit me some non-euclidean planes?"

    • @Jellyjam14blas
      @Jellyjam14blas 3 ปีที่แล้ว +14

      Lmao 😂

    • @xoddampro405
      @xoddampro405 3 ปีที่แล้ว +8

      no :)

    • @warny1978
      @warny1978 3 ปีที่แล้ว +9

      "Look at me eviscerating you, and you'll see some hyperbolic intestines"
      "Are you sure"
      "I was joking, here it is"

    • @omnificatorg4426
      @omnificatorg4426 3 ปีที่แล้ว +10

      Search for Crocheting adventures in hyperbolic world

    • @columbus8myhw
      @columbus8myhw 3 ปีที่แล้ว +4

      Daina Taimina did a nice Ted talk on hyperbolic crochet: th-cam.com/video/w1TBZhd-sN0/w-d-xo.html

  • @TheVoidIsBees
    @TheVoidIsBees 3 ปีที่แล้ว +1929

    I feel like I just gained 100 braincells but lost 300 points psychic damage.

    • @Astlaus
      @Astlaus 3 ปีที่แล้ว +191

      That's what math does to you. You gain insight, but you lose sanity.

    • @nintendofan222222222
      @nintendofan222222222 3 ปีที่แล้ว +70

      I always knew math was black magic

    • @joda7697
      @joda7697 3 ปีที่แล้ว +45

      @@Astlaus Thats a good description. I first had that when learning about cardinal numbers. Like, why the fuck are there just as many fractions as Integers, allthough the integers are a subset?! But then i learned why and booom, insight + psychic damage.

    • @CrescentUmbreon
      @CrescentUmbreon 3 ปีที่แล้ว +15

      So it's Bloodborne.
      Oh god

    • @sameman6884
      @sameman6884 3 ปีที่แล้ว +25

      +1 intelligence
      -10 HP

  • @verylostdoommarauder
    @verylostdoommarauder 2 ปีที่แล้ว +287

    Now I understand the lovecraftian horror of non-euclidean geometry better now. If it's this confusing to us, imagine what geometry would be like for an eldritch horror.

    • @lullabypoppera3914
      @lullabypoppera3914 2 ปีที่แล้ว +7

      It's simple really

    • @efegokselkisioglu8218
      @efegokselkisioglu8218 ปีที่แล้ว +7

      @@lullabypoppera3914 how old are you?

    • @robyngwendolynshiloh5277
      @robyngwendolynshiloh5277 ปีที่แล้ว +4

      Now it makes me wonder how the final season of the Magnus Archives looked

    • @Two-BallTyrone
      @Two-BallTyrone ปีที่แล้ว +7

      @@efegokselkisioglu8218 counter-argument, how old are you if you can’t get a joke?

    • @wrongturnVfor
      @wrongturnVfor ปีที่แล้ว

      I think euclidean geometry is more horrific than hyperbolic. It confines your mind too much

  • @rosearachnid879
    @rosearachnid879 2 ปีที่แล้ว +58

    “Hyperbolic crochet”
    Come on in, sir. That’s the right password.

  • @MilesMetal
    @MilesMetal 3 ปีที่แล้ว +2026

    "So I hope that's given all of you a little better understanding of curved spaces..."
    ...he says as the last remnants of my brain leak out of my ear.

    • @hyperbeast4340
      @hyperbeast4340 2 ปีที่แล้ว +70

      Wait, if a black hole is spherical geometry, are white holes hyperbolic?

    • @proloycodes
      @proloycodes 2 ปีที่แล้ว +22

      @@hyperbeast4340 maybe

    • @Armoire68
      @Armoire68 2 ปีที่แล้ว +11

      The perfect crossover doesn't exi...

    • @karynjohnson
      @karynjohnson 2 ปีที่แล้ว +6

      But I understood more and I am twelve years old. I am too nerdy for my own good

    • @MilesMetal
      @MilesMetal 2 ปีที่แล้ว +42

      @@karynjohnson You will read your comment in 10 years and cringe.

  • @efeersoy8880
    @efeersoy8880 3 ปีที่แล้ว +1276

    "Hey honey, do you think you could knitt me a projection of a hyperbolic tiling in 3D?"

    • @Battletrolls
      @Battletrolls 3 ปีที่แล้ว +4

      @SArpnt nice

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +4

      @SArpnt but who asked

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +1

      @SArpnt if nobody did, then why did you even bother to do it?

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +1

      @SArpnt very obviously nobody and i pointed that out pretty clearly if you could read

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +1

      @SArpnt thanks for criticizing your own response

  • @karynjohnson
    @karynjohnson 2 ปีที่แล้ว +272

    Hey CodeParade! That knitting of the hyperbolic plane was really amazing. The first one with the squares is very unique and I haven’t been able to find it anywhere on the internet. So I’ve been making my own with a large piece of fabric cutting it into squares and drawing the black outline then stitching them together. I’m 12. Your video has really inspired me to look into hyperbolic geometry more. Thanks CodeParade. Hope this comment doesn’t get buried.

    • @CodeParade
      @CodeParade  2 ปีที่แล้ว +70

      That's awesome! Yeah, I couldn't find anything like it online either. The closest thing I found is this skirt, it uses pentagons instead of squares, but it's the same idea: blog.andreahawksley.com/hyperbolic-airplane-skirt/

    • @Queer_Nerd_For_Human_Justice
      @Queer_Nerd_For_Human_Justice ปีที่แล้ว +11

      @@CodeParade Oh hey, she's friends with vi hart! Dang, small world. more people should do stuff like this ^^

    • @The_Moth1
      @The_Moth1 ปีที่แล้ว +3

      @@Queer_Nerd_For_Human_Justiceis she the flexagon person?

    • @disco-ifinite-easy
      @disco-ifinite-easy 8 หลายเดือนก่อน

      yes
      @@The_Moth1

    • @wendysanchez3024
      @wendysanchez3024 4 หลายเดือนก่อน +1

      I've been searching to find something like the one with the squares. I'm teaching a course on non-Euclidean geometries, and I'd love to have one of those. Did you say your wife made it? Would she be willing to sell one ?

  • @99kylies15
    @99kylies15 2 ปีที่แล้ว +20

    'isnt that neat?' while talking about non euclidean formulas almost made me tear up. This man's gentle, genuine enthusiasm really is so endearing and lovely. Thanks for this vid, can't wait to check out more.

  • @etourdie
    @etourdie 3 ปีที่แล้ว +2829

    Greenland looks like it's about the size of Africa, but in reality it's about the size of Greenland
    -Map Men

    • @BrightyLighty_
      @BrightyLighty_ 3 ปีที่แล้ว +60

      th-cam.com/video/jtBV3GgQLg8/w-d-xo.html for the uninitiated

    • @coyraig8332
      @coyraig8332 3 ปีที่แล้ว +44

      Map Men MAP Men MAP MAP men men

    • @d.l.7416
      @d.l.7416 3 ปีที่แล้ว +45

      It’s actually MAP men MAP men MAP MAP MAP men men men

    • @gregli9821
      @gregli9821 3 ปีที่แล้ว +31

      @@d.l.7416 MAP men MAP men MAP MAP MAP men men
      men

    • @Tomajdafrytrix
      @Tomajdafrytrix 3 ปีที่แล้ว +3

      map men map men map map map men men

  • @PleasentDddd
    @PleasentDddd 3 ปีที่แล้ว +2702

    “All the angles are 0 and the area is pi.”
    As someone who loves geometry, this statement really through me off.

    • @yuvs0
      @yuvs0 3 ปีที่แล้ว +302

      PleasentDddd I guess you just gotta think it threw a little...

    • @PleasentDddd
      @PleasentDddd 3 ปีที่แล้ว +99

      Yuvraj Sethia frick

    • @viktornicht260
      @viktornicht260 3 ปีที่แล้ว +172

      As someone who also loves geometry, it really turned me on lol

    • @Waterwolf221
      @Waterwolf221 3 ปีที่แล้ว +34

      threw*

    • @anrriveradxndsigamer1495
      @anrriveradxndsigamer1495 3 ปีที่แล้ว +5

      I’m hungry now

  • @kirbee1113
    @kirbee1113 2 ปีที่แล้ว +17

    Bro the "First I'll have to talk about parallel universes" had me DEAD LMAO. Shoutouts to pannenkoek2012!

  • @alpkyu5201
    @alpkyu5201 6 หลายเดือนก่อน +3

    This game caught my attention because I was frantically looking for a non-euclidian game that I can play in VR. It really was one of a kind experience. The farm was most mind boggling and the best part in my opinion (which, now I see from the thumbnails for your other videos, was actually spherical space).
    Such concepts like non-euclidean spaces are hard to grasp because they are inherently abstract. Making a game around them is really a good way for people to "experience" it and make them less abstract. It was especially a treat in VR. Thanks for making this game.

  • @carykh
    @carykh 3 ปีที่แล้ว +5990

    whoa, that's crazy that you can figure out the areas of triangles just by knowing its angles. It feels like there's something missing in the formula but there's not!

    • @papskormsepic7670
      @papskormsepic7670 3 ปีที่แล้ว +362

      whats a triangle

    • @jellevanderdrift1302
      @jellevanderdrift1302 3 ปีที่แล้ว +60

      I think the channel 'think twice' has a video about the derivation.

    • @benlev3375
      @benlev3375 3 ปีที่แล้ว +52

      It's a curved space so I think that the only radius/length is scaled by pi, so pi is defined maximum when projecting onto a 2D space.

    • @friedkeenan
      @friedkeenan 3 ปีที่แล้ว +136

      Yeah that blew my mind. At first when he said there was no Euclidean equivalent, I thought "What? You can find the area of a triangle in Euclidean space, it's just 0.5bh" but then he said only using the angles and my whole concept of reality disintegrated. Btw, love your videos, cary

    • @vari1535
      @vari1535 3 ปีที่แล้ว +31

      hi cary

  • @woodant1981
    @woodant1981 3 ปีที่แล้ว +1020

    I actually just got non Euclidean tiling in my bathroom.

  • @ryanr27
    @ryanr27 3 ปีที่แล้ว +103

    Eventually, Mario will build so much negative speed, which he had built up for over 12 hours to leave this projection of 5D space

  • @josephcsible
    @josephcsible 3 ปีที่แล้ว +17

    If you want to use HyperRogue to explore the hyperbolic tiling used in this video (5 squares meeting at each vertex, first seen at 4:59), here's the sequence of menu options to do so: main menu -> special modes -> experiment with geometry -> basic tiling -> {5,4} (four pentagons) -> go back -> variations -> pure -> dual of current.

  • @koda_pop
    @koda_pop 3 ปีที่แล้ว +427

    The parallel universe bit caught me off guard lmao

    • @chakra6666
      @chakra6666 3 ปีที่แล้ว +32

      surely the most ambitious crossover ever

    • @rehehehehehe4525
      @rehehehehehe4525 3 ปีที่แล้ว +39

      those goddamn parallel universes
      just tell me where is Mario
      don't tell me he's 4 PU to the left, 29 PU down and performing a satanic ritual in the out of bounds area

    • @HokoraYinphine
      @HokoraYinphine 3 ปีที่แล้ว +5

      PannenParade

    • @mynion24100
      @mynion24100 3 ปีที่แล้ว +2

      an a press is an a press...

    • @Lance0
      @Lance0 3 ปีที่แล้ว +3

      @@mynion24100 Were you gonna say, "it can't be only half? Well, Mynion"24" 100, hear me out. An A press has actually 3 parts to an A press, when A is pressed, when A is held, and when A is released. Now together, this forms 1 complete A press. Now usually, it's the pressing that's useful, because that's the only part that makes Mario jump. However sometimes, it's sufficient to just use the holding part, which allows Mario to do little kicks, to swim in water, to fall slowly while twirling, and to fall slowly with the wing cap. And as for the release, well there's currently no cases where that's useful or important, so don't worry about that. Now, if we map out the required A presses for Wing Mario Over the Rainbow, it would look like this. We merely need to hold A to reach the cannon platform, we need to press A to launch from the 1st cannon, and we need to press A again to launch from the 2nd platform. So how many A presses is that total? Well, it appears to be 3, and if we were doing this star in isolation, then yeah, it would be 3. But, in a full game A button challenge run, there are other A presses that occur earlier in the run, such as this A press needed to get into the course. So, if we take that A press into consideration as well, then how many A presses would it take? The naive answer would be 4, one to enter the course, and the 3 within the course that we established earlier. However, we can do better. We can actually do it in 3 by simply holding out the 1st A press to be used in the half A press because the half A press only requires A to be held, not actually pressed. So in this fashion, Wing Mario Over the Rainbow only adds on an additional 2 A presses, since the 1st A press just actually leeches off of a previous A press, so to capture this phenomenon, we call it 2.5 A presses. On a single-star basis, you round that up to 3, but in a full game run, you'd round it down to 2. So, in conclusion, since that 1st A press counts in some contexts, but adds no additional A presses in other contexts, we refer to it as a half A press.
      Edit: it's pannen time(all the words are now ripped out from pannen's video)

  • @michaelzopff8862
    @michaelzopff8862 3 ปีที่แล้ว +1132

    Oooh! Holonomy is the reason why, when rotating a 3D object with a mouse, the orientation quickly gets messed up, isn't it? That would explain why my trick of moving the mouse in small circles clockwise or counter-clockwise works, too.

    • @CodeParade
      @CodeParade  3 ปีที่แล้ว +338

      Exactly!

    • @bencressman6110
      @bencressman6110 3 ปีที่แล้ว +123

      @@CodeParade It's cool that when we hold a globe in our hands, we automatically rotate it as we, well, rotate it to compensate for this effect, so we always orient things the way we are used to seeing them in map projections (keeping north "up")

    • @thelegend8570
      @thelegend8570 3 ปีที่แล้ว +21

      Oh hell, i knew i'd seen that somewhere before, i guess that explains it!

    • @rententee
      @rententee 3 ปีที่แล้ว +6

      That's what came to mind for me as well!

    • @kosherkingofisrael6381
      @kosherkingofisrael6381 3 ปีที่แล้ว +4

      It also reminds me of certain gears

  • @joost5609
    @joost5609 2 ปีที่แล้ว +8

    The Mario joke was hilarious and probably the only thing I truly understood. Very interesting and challenging subject!

  • @bigagabriel
    @bigagabriel 2 ปีที่แล้ว +18

    I have been reading the books of the fantasy novel The Wheel of Time. There is king of a parallel plane where one of the characters can move throw space and he describes as if things that looked really far came closer really fast. And that as he turned his head, the world would turn way faster. It might be the hyperbolic rendering you show and it might be awesome to connect that with the books fans!

  • @cynicap8584
    @cynicap8584 3 ปีที่แล้ว +239

    "Courtesy of mrs. Parade"
    Awww, what a sweet, weird quality time

  • @onion2.
    @onion2. 3 ปีที่แล้ว +2143

    “Think about light bending around the curved space of a black hole.” Ah yes

    • @beanmcknee1610
      @beanmcknee1610 3 ปีที่แล้ว +91

      It’s like a coin going down one of those donation things that make the coin spin around into the hole
      Except the coin is light and the hole is a black hole

    • @tristenarctician6910
      @tristenarctician6910 3 ปีที่แล้ว +11

      @@beanmcknee1610 why would the color of the hole change?
      .

    • @beanmcknee1610
      @beanmcknee1610 3 ปีที่แล้ว +19

      @@tristenarctician6910 no sorry what I meant was is that the coin represents light itself, not light in color
      I hope that helps

    • @michelekonakciu7052
      @michelekonakciu7052 3 ปีที่แล้ว +4

      @@tristenarctician6910 particle get excited and emit radiation that we perceive as a colour change

    • @Tharmin.124
      @Tharmin.124 3 ปีที่แล้ว

      Just think of a magnet and a ball bearing, just that they can't touch

  • @spoonkyscenvyscreeleton
    @spoonkyscenvyscreeleton 3 ปีที่แล้ว +7

    scientists: a group of very serious people in glasses and lab coats who are investigating very complex serious things
    also scientists: S P A G G H E T T I F I C A T I O N

  • @fobo0053
    @fobo0053 2 ปีที่แล้ว +6

    you know.. i love you just by the fact that you're not "bad-repeating" something that you heard from a mathematician like the other youtubers and you are precise (it's a mathematician talking)

  • @CasualCosta
    @CasualCosta 3 ปีที่แล้ว +949

    Instructions unclear, become a flat-earther.

    • @rehehehehehe4525
      @rehehehehehe4525 3 ปีที่แล้ว +20

      I'm ok I don't want to be a flat earther

    • @mysterioushoodedguy2332
      @mysterioushoodedguy2332 3 ปีที่แล้ว +36

      Lol the thing where the triangle on a sphere has 3 right angles has actually been used to disprove flat earthers since if you take a plane and fly it a certain distance, turn right 90 degrees, fly same distance, turn 90, fly same distance, you'll end up in same place where you started because of the earth's curvature

    • @Fulgur14
      @Fulgur14 3 ปีที่แล้ว +7

      @@mysterioushoodedguy2332 Well, technically... but on Earth, that would be a trip of 30,000 km, so you could hardly do it without landing in-between. And that generally can't be done without turning, and how do you prove you continue in the same direction, etc. etc.
      Though it leads to an interesting question: what would be the easiest triple-90-degree triangle on Earth to travel? Or, for the matter, triple-72-degree, a part of an icosahedron?

    • @jfp0763
      @jfp0763 3 ปีที่แล้ว +17

      Instructions unclear, Teleported to another plane in existence and start being trained by Sherk to fight against an Otaku army

    • @mgsgamer8340
      @mgsgamer8340 3 ปีที่แล้ว +3

      Oh I became a non-Euclidean-earther.
      *i can hear melanie Martinez when a bird chirps now*

  • @enderstriker0718
    @enderstriker0718 3 ปีที่แล้ว +436

    “We’re only looking down on it because we are higher dimensional beings living in a 3D universe.”

    • @daylenhigman8680
      @daylenhigman8680 3 ปีที่แล้ว +169

      *The 4th dimensional being watching me take a dump

    • @satyampandey2222
      @satyampandey2222 3 ปีที่แล้ว +55

      @UltimateGeek at the same time

    • @JotaC
      @JotaC 3 ปีที่แล้ว +29

      We actually live in a 4D world as 3D beings
      That's why we can't see the full extent of time

    • @nykal1510
      @nykal1510 3 ปีที่แล้ว +60

      @@JotaC Time is not a SPATIAL dimension, stating that we live in a four-dimensional world is irrelevant, we live in three-dimensional space

    • @ryanwolf1869
      @ryanwolf1869 3 ปีที่แล้ว +8

      Nykal absolute brainlet

  • @thewarden4174
    @thewarden4174 9 หลายเดือนก่อน

    I really like how you explain all this, it makes it much easier to understand than just the graphs

  • @marcopivetta7796
    @marcopivetta7796 3 ปีที่แล้ว +2

    bro i've been watching a lot of conferences and lectures on this topic and NONE have explained it better than your videos. YOU ROCK! I'm considering taking up a math degree after getting my master in architecture next year, in part thanks to these videos.
    Love!

  • @thecheesybagel8589
    @thecheesybagel8589 3 ปีที่แล้ว +1800

    No one:
    My brain at 1 am: let’s try to understand non Euclidean geometry when I already have a hard time with algebra

    • @theredneckdrummerco.6748
      @theredneckdrummerco.6748 3 ปีที่แล้ว +28

      its one forty nine right now and I face the same dilemma

    • @goddamnit
      @goddamnit 3 ปีที่แล้ว +7

      Same :'(

    • @sonetagu1337
      @sonetagu1337 3 ปีที่แล้ว +12

      I dont even understand algebra wtf

    • @zinedsdrawkcab840
      @zinedsdrawkcab840 3 ปีที่แล้ว +3

      same, but its 4:04 am for me

    • @erenjaeger1266
      @erenjaeger1266 3 ปีที่แล้ว +4

      STOP IT PLEASE THIS IS SO FREAKING RELATABLE ITS 12:36 FREAKING AM I CSNT SLEEP!!!

  • @rodeo_stomper
    @rodeo_stomper 3 ปีที่แล้ว +304

    Honestly, I have no clue what any of this means, but this dude's voice is really relaxing to me.

    • @astergh0st
      @astergh0st 3 ปีที่แล้ว +10

      Jøhnny Rëtznøvishchä Yeah. Too bad my inability to understand what he’s saying gives me a headache.

    • @Mysideep
      @Mysideep 3 ปีที่แล้ว +3

      I want to understand...

  • @mustafamalik4211
    @mustafamalik4211 ปีที่แล้ว +1

    This is so fascianting. I can't believe I never thought about the geometrical visualizations of the hyperbolic and spherical equations I learned in Vector Calculus back in University. Thank you for this amazing video!

  • @jamesrosco4816
    @jamesrosco4816 2 ปีที่แล้ว +1

    I watched this a year ago and now finally have started playing Hyperbolica. It is quite the experience. Now I am back w a tching this again trying to wrap my head around it. Big thanks for making the game and these videos.

  • @simonsixt2418
    @simonsixt2418 3 ปีที่แล้ว +84

    8:07 Imagine creating a black hole by throwing a baseball really hard in spherical geometry

    • @marcinlechicki4019
      @marcinlechicki4019 3 ปีที่แล้ว +6

      Maby our universe is spherical, and that "realy hard" to get speed enough is force to give that baseball light speed.

    • @Anonymous-zd1ow
      @Anonymous-zd1ow 3 ปีที่แล้ว +3

      @@marcinlechicki4019 If the ball was thrown that hard it would be ripped to shreds.

    • @marcinlechicki4019
      @marcinlechicki4019 3 ปีที่แล้ว +3

      @@Anonymous-zd1ow You are talking from experience Hulk?

    • @ynntari2775
      @ynntari2775 3 ปีที่แล้ว +3

      People in general have too many misconceptions about big strength. Like lifting cars and sofas, which actually just folds the whole thing and rips off the small part you're holding. And "lifting a building" would be just passing your hands through the floor and making holes

    • @reizinhodojogo3956
      @reizinhodojogo3956 3 หลายเดือนก่อน

      ​@@marcinlechicki4019he changed his user to anonymous, hulk is retired now sadly

  • @Fulgur14
    @Fulgur14 3 ปีที่แล้ว +599

    One thing that might need mentioning is that non-Euclidean geometries, unlike the Euclidean one, possess preferred lengths. (The video only mentions "assigning unit curvature" without actually explaining what it means.)
    Simply said, in Euclidean plane, we may set our length unit to be anything. Pythagorean theorem, circumference of circle, everything will work the same no matter what units we measure in.
    In spherical geometry, we have a natural unit that is equal to the radius of the sphere. Even if the space is not actually embedded in anything and doesn't have an actual "radius", we still know what it should be because that is the only length unit in which r can be measured so the formula "2 pi sin(r)" works.
    This has colossal consequences! It means, for example, that the "similar shapes" in Euclidean geometry, where you can increase a size of, say, a triangle or a square and still keep all its angles intact. No such luck here: a triangle with sides twice as long as an original will have completely different angles. This would make things like making plans, schemes or maps harder.
    In hyperbolic geometry, a natural length unit is not that easy to see as in spherical geometry, but it nevertheless exists. There's only one possible length unit which makes the 2 pi sinh(r) formula work!
    Finally, note that spherical geometry has some additional problems the other two geometries don't have. Main one is that if you draw two straight lines on a sphere, not only will they always intersect, but they will always intersect in two antipodal points. This spoils the geometry somewhat (straight lines should only intersect in one point). The solution is so-called "elliptic" geometry, in which every pair of antipodal points on the sphere is considered just a single point. That one has its weird moments as well (for example, if you wander in a straight line, you will eventually arrive back to your starting point, but as a mirror opposite).

    • @Stetofire
      @Stetofire 3 ปีที่แล้ว +18

      Marek Čtrnáct You are indeed... A Super Nerd!
      *Guitar Riff*

    • @csicee
      @csicee 3 ปีที่แล้ว +6

      tl;dr?

    • @Fulgur14
      @Fulgur14 3 ปีที่แล้ว +32

      @@csicee TLDR: In non-Euclidean geometries, you are forced to measure lengths in a very specific units in order to get simplest possible formulas.

    • @Fulgur14
      @Fulgur14 3 ปีที่แล้ว +19

      ​@@Stetofire Well, I have been involved with HyperRogue for quite some time -- for example, you can see some of my tessellation results here: zenorogue.github.io/tes-catalog/

    • @AlxM96
      @AlxM96 3 ปีที่แล้ว +16

      @@Fulgur14 phenomenal insight and work, thanks! keep it up!

  • @Darthvanger
    @Darthvanger 2 ปีที่แล้ว +1

    Awesome!
    The best explanation of the curved spaces I've seen actually.
    And at the same time it's gonna be a game, to really experience it!

  • @lobsterfork
    @lobsterfork 2 ปีที่แล้ว +5

    I saw your reddit post for this 1 or 2 years ago (I don't remember exactly when). Really cool that you are pushing this into mainstream. I bet what you are working on will have really cool applications in the near and distant future!
    BTW HOLY SHIT THAT KNITTING IS IMPRESSIVE!

  • @BambinaSaldana
    @BambinaSaldana 3 ปีที่แล้ว +1583

    "But first we have to talk about parallel universe-I mean parallel lines."
    *We were on the verge of greatness,we were this close.*

    • @GlyphicEnigma
      @GlyphicEnigma 3 ปีที่แล้ว +62

      We just needed enough speed to get to the next PU!!!

    • @YashBeanz
      @YashBeanz 2 ปีที่แล้ว +4

      @@GlyphicEnigma just blj for 11 hours and you should have enough!

    • @TheaPeanut_69old
      @TheaPeanut_69old 2 ปีที่แล้ว +4

      the music tho
      its from another video about weird stuff a bit similar to this

    • @YashBeanz
      @YashBeanz 2 ปีที่แล้ว +21

      @@TheaPeanut_69old it's the file select music from Mario 64

    • @Qsie
      @Qsie 2 ปีที่แล้ว +7

      Man, makes me miss watching Pannen

  • @miljanvideo
    @miljanvideo 3 ปีที่แล้ว +127

    2:23 Talking about spherical geometry
    me an intellectual:
    *beach balls*

  • @cdawgswizzle7229
    @cdawgswizzle7229 3 ปีที่แล้ว +1

    this is a perfect way to explain some of the complex concepts in Geometry Relativity and the 4th Dimension. Thanks a lot!

  • @DigitalDuelist
    @DigitalDuelist ปีที่แล้ว

    This makes so much more sense than any explanation I have ever seen. Thank you!

  • @kurlyfryz
    @kurlyfryz 3 ปีที่แล้ว +1580

    that feeling when non-euclidean geometry makes more sense than euclidean geometry

    • @Shrek_es_mi_pastor
      @Shrek_es_mi_pastor 3 ปีที่แล้ว +21

      Completamente difiero.

    • @maxnewdf
      @maxnewdf 3 ปีที่แล้ว +94

      @@Shrek_es_mi_pastor why your pastor is shrek?

    • @TaiFerret
      @TaiFerret 3 ปีที่แล้ว +121

      Euclidean geometry is just what happens when you zoom in on a surface infinitely.

    • @realnub235
      @realnub235 3 ปีที่แล้ว +3

      oof lol

    • @luizg8034
      @luizg8034 3 ปีที่แล้ว +16

      @@TaiFerret sounds strange to me, but i dont know enough topology to disprove it

  • @theosouris7063
    @theosouris7063 3 ปีที่แล้ว +38

    5:47 I don’t know what I expected from this vid, but it certainly wasn’t a Pannenkoek2012 reference

  • @EternalPhoenix
    @EternalPhoenix 2 ปีที่แล้ว +1

    This has become my favorite topic to ramble about, ty

  • @sebastianmonten
    @sebastianmonten 2 ปีที่แล้ว

    Dude, super interesting video! Glad that I found this! I have become more and more interested in computer science, glad that I found your channel

  • @juancgonzalez6537
    @juancgonzalez6537 3 ปีที่แล้ว +475

    "But first we have to talk about parallel universes." I'm having a panic attack.

    • @rhaeven
      @rhaeven 3 ปีที่แล้ว +32

      *quick creepy distorted version of the Mario 64 File Select music starts*

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +33

      pannen attack*

    • @spikey288
      @spikey288 3 ปีที่แล้ว +2

      No you aren't

    • @thatoneguy9582
      @thatoneguy9582 2 ปีที่แล้ว +8

      @@spikey288
      youre not their dad

    • @spikey288
      @spikey288 2 ปีที่แล้ว

      @@thatoneguy9582 not you again

  • @Addsomehappy
    @Addsomehappy 3 ปีที่แล้ว +127

    "Stay Hyperbolic!"
    oh so you wish me to tear myself apart every time i walk anywhere gee thanks

    • @Anonymous-zd1ow
      @Anonymous-zd1ow 3 ปีที่แล้ว +6

      That only happens when you apply a significant amount of force to yourself.

    • @diophantine1598
      @diophantine1598 3 ปีที่แล้ว +8

      The Incredible Hulk Correction, velocity. Depending on the hyperbolic space (depending on r) even walking or breathing could tear you apart.

    • @olli3b3ar27
      @olli3b3ar27 3 ปีที่แล้ว

      this is what happens when you try and and be parallel, but you'll learn.

    • @justinaccurate347
      @justinaccurate347 3 ปีที่แล้ว

      I think OP was joking by being hyperbolic in his reaction?

    • @Anonymous-zd1ow
      @Anonymous-zd1ow 3 ปีที่แล้ว +1

      @@diophantine1598 Oh thank you for correcting me! Oh Jesus this is 7 months late XD.

  • @centerofoperations9251
    @centerofoperations9251 6 หลายเดือนก่อน +2

    This is the best explanation of the topic I've ever watched

  • @kylehayden3113
    @kylehayden3113 2 ปีที่แล้ว +21

    "So I hope that's given all of you a little better understanding about curved spaces..."
    Well, it sure hasn't, but I appreciate the effort

  • @centokiVA
    @centokiVA 3 ปีที่แล้ว +353

    this genuinely has taught me more about non-euclidean geometry than my classes have

    • @pattyryopotybuttongamer3063
      @pattyryopotybuttongamer3063 2 ปีที่แล้ว +4

      and after that you have to plug the red wire into the socket to make sure the engine boots at launch. Wrap the green wire around it's coil that sits directly beside the A button. After you put the back shell on, place the battery in the slot. Screw the Vr26 Jeeper back up and press the reset button. If everything worked according to plan you're device should show a thumbs up sprite. Plug the HDMI port into a monitor and wait three seconds. If it boots up on TV your in the good side. If it doesn't boot in less then 5 seconds quickly unplug. This can severely damage your TV and possibly start a fire

    • @diamante8864
      @diamante8864 2 ปีที่แล้ว +12

      this genuinely has taught me more about *euclidean* geometry than my classes have

    • @Crazyclay78YT
      @Crazyclay78YT ปีที่แล้ว +3

      bruh why tf would you be taking non euclidean geometry in school

    • @ThomasTheThermonuclearBomb
      @ThomasTheThermonuclearBomb 9 หลายเดือนก่อน

      ​@@pattyryopotybuttongamer3063bro what are you talking about

  • @MeteoritePlayz
    @MeteoritePlayz 3 ปีที่แล้ว +318

    CodeParade: oh god, PLEASE STOP USING THIS!
    Pringles: no u
    Edit: how do I have about 200 more likes a month later ty

    • @pwnmeisterage
      @pwnmeisterage 3 ปีที่แล้ว +25

      Anticlastic diagrams are confusing because they force the viewer to visualize a non-intuitive concept in an even more non-intuitive way. They just overcomplicate stuff too much.
      Everyone immediately understands Pringles. Pringles are tasty.

    • @EliteOcto
      @EliteOcto 3 ปีที่แล้ว +9

      PRINGLES IN 4D

    • @Kromiball
      @Kromiball 3 ปีที่แล้ว +2

      @@EliteOcto lol

    • @unblorbosyourshows9635
      @unblorbosyourshows9635 3 ปีที่แล้ว +3

      @@EliteOcto N O N E U C L I D E A N P R I N G L E S

    • @jamiecasimir5040
      @jamiecasimir5040 3 ปีที่แล้ว

      ElPseudocrítico E A T

  • @greggreen5510
    @greggreen5510 6 หลายเดือนก่อน +2

    @CodeParade I recently have been learning about the hyperbolic trigonometric functions. I am having a hard time finding information on how a hyperbolic triangle relates to the hyperbolic functions. Where did you find out so much information about spherical and hyperbolic geometry? This video is astoundingly amazing!

  • @blue-ou6uf
    @blue-ou6uf ปีที่แล้ว

    this is amazingly explained omg. so much content i expected to be overwhelming but isnt.

  • @Chrischi3TutorialLPs
    @Chrischi3TutorialLPs 3 ปีที่แล้ว +116

    "But first we have to talk about parallel universes"
    *SM64 music plays*
    Ah, i see you are a man of culture aswell.

    • @joseg.matamoros2847
      @joseg.matamoros2847 3 ปีที่แล้ว +1

      Bismuth be like

    • @haimric8603
      @haimric8603 3 ปีที่แล้ว

      Explain

    • @Chrischi3TutorialLPs
      @Chrischi3TutorialLPs 3 ปีที่แล้ว +11

      @@haimric8603 Its a meme about Super Mario 64. Basically due to a programming oversight theres parallel universes in the game which speedrunners use in Tool-Assisted Speedruns (Basically speedruns where you have bots make perfect inputs rather than playing yourself) to get around. And well, theres this TH-camr called Pannenkoek2012 who made a video explaining some things about speedruns, and well, that line "But first we need to talk about parallel universes" became a thing.

    • @knockrotter9372
      @knockrotter9372 3 ปีที่แล้ว +1

      @@Chrischi3TutorialLPs YOU CAN'T JUST PRESS THE A BUTTON A HALF OF A TIME IT'S STILL AN A PRESS

  • @Tubeytime
    @Tubeytime 3 ปีที่แล้ว +282

    Holonomy is something I've known about for years due to playing around in various programs/simulations/games but I never knew there was a word for it until now!

    • @pluspiping
      @pluspiping 3 ปีที่แล้ว +31

      Same! I build 3D models for my job and I guess it's why you need "reset view" buttons when you're zooming around the model in "3D space". You get real lost real fast. Now I know there's a word for it! Cool!

    • @eugenegarcia6155
      @eugenegarcia6155 2 ปีที่แล้ว +1

      Tell me about it

    • @cheesepop7175
      @cheesepop7175 ปีที่แล้ว +2

      holonomy happens in gmod

    • @Crazyclay78YT
      @Crazyclay78YT ปีที่แล้ว +1

      @@cheesepop7175 bro it happens fucking everywhere

    • @Crazyclay78YT
      @Crazyclay78YT ปีที่แล้ว +3

      yeah 3d modeling really showed me that. if you just click and drag in circles, moving the camera around the object, it rotates. at first i was like "wtf why does it do that" and i thought it was a glitch or something in the software. now that i know that it has a word, i will definitely try to squeeze that into my vernacular

  • @Grey-mo5py
    @Grey-mo5py 2 ปีที่แล้ว +1

    ive watched this video so many times and I love it every time

  • @Memerath
    @Memerath 3 ปีที่แล้ว +2

    was NOT expecting a simpleflips reference, but i love it even more because of that

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +2

      pannenkoek2012*

    • @Memerath
      @Memerath 3 ปีที่แล้ว

      @@ej-jz5rc simpleflips*

  • @grandstrategos1144
    @grandstrategos1144 3 ปีที่แล้ว +201

    Clarification for everyone in the comments. When he talks about lines in spherical geometry, he is mentioning the spherical geometry definition of a line. In spherical geometry, the definition of a line is one of the great circles of the sphere. So you can’t use different latitudes or longitudes.

    • @PotatoPatatoVonSpudsworth
      @PotatoPatatoVonSpudsworth 3 ปีที่แล้ว +9

      This clarifies things quite a but for me. Thank you!

    • @nancyburgos1231
      @nancyburgos1231 3 ปีที่แล้ว +8

      I was wondering exactly that jaja! Thank you

    • @nicbajitogaming8947
      @nicbajitogaming8947 ปีที่แล้ว +5

      Geodesics waving to the world 🤗 Hi, geodesic !!

    • @wa5657
      @wa5657 10 หลายเดือนก่อน

      oh thank you, i was just hung up on that :v

  • @SoftyWalterGames
    @SoftyWalterGames 3 ปีที่แล้ว +8

    As soon as you said "there wouldn't even be a horizon" my mind exploded trying to visualise earth without horizons

    • @elietheprof5678
      @elietheprof5678 3 ปีที่แล้ว +2

      If you live in America, the sky is Australia.

  • @renormalization
    @renormalization 11 หลายเดือนก่อน +1

    This is a great video to motivate the anti-de Sitter spacetime (hyperbolic spacetime) for holography. Nicely done!

  • @jeper3460
    @jeper3460 3 ปีที่แล้ว +17

    Another interesting thing with curved space is travelling through something with a lot of reference points e.g. a forest with trees or space with stars.
    When you walk through a forest in euclidean space, the trees that are more directly in front of you seem to move towards you faster, while the trees more toward the sides seem to move slower. In hyperbolic space, all of the trees seem to move at the same speed towards you, no matter how far off the centre they are. In spherical space, the trees behind you appear in front of you, and the trees off to the side almost appear to be still.

  • @MozartSrs
    @MozartSrs 3 ปีที่แล้ว +638

    No one:
    My blanket when I’m trying to find the short end at 3am: 3:00

    • @MoltenSamurai
      @MoltenSamurai 3 ปีที่แล้ว +18

      Underrated

    • @QuartzOfficial
      @QuartzOfficial 3 ปีที่แล้ว +16

      its even 3:00

    • @neilpetrarca7395
      @neilpetrarca7395 3 ปีที่แล้ว +4

      Lol

    • @ashtonsmith1730
      @ashtonsmith1730 3 ปีที่แล้ว

      what blanket did you buy?

    • @Querens
      @Querens 3 ปีที่แล้ว +8

      why "no one:" is needed everywhere. How is it helping the joke

  • @BAVBAVBAV
    @BAVBAVBAV 3 ปีที่แล้ว +506

    An A press is just an A press. You can’t just call it a half.

    • @cmdrkradenguard6808
      @cmdrkradenguard6808 3 ปีที่แล้ว +43

      Bro, how many QPUs are you on?

    • @dougneon9550
      @dougneon9550 3 ปีที่แล้ว +32

      @@cmdrkradenguard6808 like maybe 5 or 6 my dude

    • @EpicBlackflame07
      @EpicBlackflame07 3 ปีที่แล้ว +11

      This a reference to that half A press Mario run?

    • @quincyyeager6249
      @quincyyeager6249 3 ปีที่แล้ว +3

      you half Alive or half dead?

    • @wynfarthing
      @wynfarthing 3 ปีที่แล้ว +19

      Ok TJ 'Henry' Yoshi

  • @rydz3442
    @rydz3442 3 ปีที่แล้ว +1

    it hurts the brain to watch your videos. I love it

  • @darelfn
    @darelfn 14 วันที่ผ่านมา +3

    Meanwhile beings in a Hyperbolic Multiverse losing their minds over how strange the concept of a Euclidean universe seems to them

    • @kapzduke
      @kapzduke 3 วันที่ผ่านมา

      you don't lose your mind over a spherical universe do you

  • @JohnsontheFly
    @JohnsontheFly 3 ปีที่แล้ว +27

    That awkward moment when hitting a baseball in spherical space creates a naked singularity and by extension accidentally creates 0-dimentional space

  • @crackedemerald4930
    @crackedemerald4930 3 ปีที่แล้ว +119

    Hyperbolic space: when you have more space every space you space

    • @Kaiveran
      @Kaiveran 3 ปีที่แล้ว +5

      Xzibit would like to know your location

  • @mixadengitti
    @mixadengitti 2 ปีที่แล้ว +1

    This is extremely fascinating.

  • @mordechailevinson8646
    @mordechailevinson8646 2 ปีที่แล้ว

    ....Thank you so much for posting this video & the "heads-up" on Henry Segerman.....

  • @bubblehead9548
    @bubblehead9548 3 ปีที่แล้ว +3

    Ok I was completely lost until my drowning brain just screamed YOU CAN FIT MORE SPACE IN SPACE and I understood this for approximately a quarter of a second before my dumb mortal brain decided that was too much. You have obviously entered into some terrible contract with Yog-sothoth to have such a deep understanding of hyperbolic space, and for that I fear and respect you, and legit can’t wait to play hyperbolica

  • @matsol2158
    @matsol2158 3 ปีที่แล้ว +43

    7:30 This guy :"Now we've walked on a pentagon with five right angles"
    My math teacher :"Wait... that's illegal..."

  • @MayBeSomething
    @MayBeSomething 2 ปีที่แล้ว +3

    "But first, I need to talk about parallel universes"
    You had me there!

  • @jamalford961
    @jamalford961 2 ปีที่แล้ว +1

    Thanks for this, your channel helps my mind.

  • @albingrahn5576
    @albingrahn5576 3 ปีที่แล้ว +26

    can’t wait to see the 0.5 A-press run for hyperbolica!

    • @Lance0
      @Lance0 3 ปีที่แล้ว +3

      well, we need 4 things:
      HSPW, forcing scuttlebugs to have a jamboree, pannen, and TJ """"Henry"""" Yoshi.

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +1

      @@Lance0 don't forget groundpounding the misalignment

  • @LionsInBoots
    @LionsInBoots 3 ปีที่แล้ว +26

    5:44 „I was already 5 PUs ahead of you...“

    • @ej-jz5rc
      @ej-jz5rc 3 ปีที่แล้ว +5

      4* because then he'd be QPU misaligned

  • @andredominguez3199
    @andredominguez3199 2 ปีที่แล้ว +1

    I don't know why TH-cam recommended me this, but I love it.

  • @Christophe_L
    @Christophe_L 2 ปีที่แล้ว +1

    I've been following for ages and finally I can play it. My brain liked your game. My stomach did not. 10/10.

  • @Marci124
    @Marci124 3 ปีที่แล้ว +64

    I didn't think there were too many interesting tidbits in this topic that I wasn't aware of, but this video proved me wrong!

    • @sreyam7
      @sreyam7 3 ปีที่แล้ว +2

      Same! I realised I have very little intuition about these things beyond the standard "hyperbolic spaces as saddle-shaped with all lines eventually diverging" basic picture.

  • @Epicvibes999
    @Epicvibes999 3 ปีที่แล้ว +34

    “It only looks 3D because we are higher dimensional beings, looking down on the flatlanders.”
    Hip Hop Artists: *”haha , fisheye go wobble wobble”*

  • @drenz1523
    @drenz1523 3 ปีที่แล้ว +1

    Code Parade: So glad i grew up with this 0:07
    But damn this is much better 0:05

  • @lifeofalonelywhale
    @lifeofalonelywhale 4 หลายเดือนก่อน +1

    The Mario 64 music at the mention of parallel universes... 50 bucks you've seen the Mario 64 conspiracy iceberg XD Spot on, spot on.

  • @leebee42069
    @leebee42069 3 ปีที่แล้ว +55

    Me: I'm going to crochet a hat!
    The hat: 3:20
    Me: why does this always happen?

  • @Lugmillord
    @Lugmillord 3 ปีที่แล้ว +14

    When the Mario 64 music kicks in, I knew what was coming and I wasn't disappointed.

  • @CallmeAlexey
    @CallmeAlexey 2 ปีที่แล้ว +1

    ive been always thinking of wormholes and space bent in 4D but ive never seen this simple explanation, daaamn! nice video!
    also, if we count the time axis too, like adding one more axis on spheric 2D world it would be confusing as hell but it would look really cool lol.

  • @nemesisurvivorleon
    @nemesisurvivorleon ปีที่แล้ว

    I love this concept so much.
    And Hyperbolica is an amazing game.

  • @hitzcritz
    @hitzcritz 3 ปีที่แล้ว +82

    5:44 "But first, we have to talk about parallel ̶u̶n̶i̶v̶e̶r̶s̶e̶s̶ lines!"
    *_my disappointment is immeasurable and my day is ruined_*

    • @1sub2videos60
      @1sub2videos60 3 ปีที่แล้ว +6

      mario

    • @TheaPeanut_69old
      @TheaPeanut_69old 2 ปีที่แล้ว +1

      the lines are still universes

    • @L1M.L4M
      @L1M.L4M 2 ปีที่แล้ว

      @@TheaPeanut_69old one dimensional, yes

  • @hytalefanboi7471
    @hytalefanboi7471 3 ปีที่แล้ว +33

    "do u like maths or programming?"
    code parade: "yes"

    • @randairp
      @randairp 3 ปีที่แล้ว +2

      Fun fact: by the Curry-Howard Correspondence, maths and programming are literally identical (two perspectives of the same thing).

    • @jedizombiekiller9065
      @jedizombiekiller9065 3 ปีที่แล้ว +1

      @@randairp Fun Fact: semicolon

  • @exintrovert1337
    @exintrovert1337 2 ปีที่แล้ว +1

    Very nice explanation! Thank you.

  • @adrienlawrence1024
    @adrienlawrence1024 2 ปีที่แล้ว

    was reading about relativity and when the book started talking about the shape of the universe and stuff I was pretty lost, this video helped a lot, didn't even know this was going to be related to what I was trying to figure out

  • @Brindlebrother
    @Brindlebrother 3 ปีที่แล้ว +59

    Mrs. Parade: "I'm about to crochet in a whole other dimension"

  • @aethershard463
    @aethershard463 3 ปีที่แล้ว +172

    CodeParade: Wanna guess what the hyperbolic opposite is?
    Me: cosine(r)? I mean that’s the “opposite” of sine.
    CodeParade: No you fool it’s hyPErBoLiC sine!!!

    • @XDinky
      @XDinky 3 ปีที่แล้ว +8

      Isn't the opposite of sine just minus sine?
      I guess you need to define "opposite"

    • @zacozacoify
      @zacozacoify 3 ปีที่แล้ว +14

      I would say the opposite of sin is either -sin, or inverse sin (arcsin). Cos is more like the complement to sin, it’s what you get when you shift sin by -90 degrees.

    • @anonymousperson6228
      @anonymousperson6228 3 ปีที่แล้ว +4

      Or it could be cosecant. It’s the reciprocal of sine.

    • @Fulgur14
      @Fulgur14 3 ปีที่แล้ว +7

      @@zacozacoify sinh is, in a way, sin rotated 90 degrees: sinh(x) = -i sin (ix)

    • @Fulgur14
      @Fulgur14 3 ปีที่แล้ว

      @Multorum Unum It can be if sin(ix) is pure imaginary.

  • @cine-leaks8281
    @cine-leaks8281 2 ปีที่แล้ว +1

    Excellent content!!

  • @johnehteshami725
    @johnehteshami725 3 ปีที่แล้ว +1

    Awesome work!

  • @tentimestay9181
    @tentimestay9181 3 ปีที่แล้ว +19

    "But first, we have to talk about parallel univers-- I mean parallel lines" so unexpected, genuinely cackled

  • @revessombres7837
    @revessombres7837 3 ปีที่แล้ว +8

    I remember watching the "5 sided square" video from numberphile a few months ago. And now I got an even better explanation, thank you.

  • @luxembourgcool
    @luxembourgcool 2 ปีที่แล้ว +1

    15 months in the making. Worth it.

  • @unbekannter771
    @unbekannter771 3 ปีที่แล้ว +1

    Dude are you a university professor or something?
    This is literally the best visual representation of projection and space warping, along with the best and easiest to understand explanation Ive ever come across!