Passing A Portal Through Itself

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  • Опубликовано: 31 авг 2022
  • Nebula Classes - Great classes by your favorite creators on a creator-owned streaming service: nebulaclasses.com/minutephysics
    This video is about what happens if you try to pass a portal (like in the video game Portal or Portal 2) through itself - do you get a paradox? Infinite recursion? Impossibility? Contradiction? The end of the world? Collapse of the wavefunction? Ultimately it ends up looking beautiful and weird and recursive and... just watch the video :)
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    Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
    Created by Henry Reich
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Комментарии • 7 тыс.

  • @rebelgaming1.5.14
    @rebelgaming1.5.14 Год назад +11743

    I love how it's just generally accepted now that Portal's Portals are the only things we're allowed to use for diagrams with portals.

    • @ironicanimations
      @ironicanimations 11 месяцев назад +653

      I mean, it’s a good design :D

    • @Netsuki
      @Netsuki 11 месяцев назад +661

      It's not only allowed, but it's just what people recognize. And simple color coding that exist so player could easily understand which one is which makes it good too. Darksiders have same colored portals, iirc. But they look a little difference. Valve was and still is good at making games.

    • @SRFriso94
      @SRFriso94 11 месяцев назад +172

      GLaDoS was right: "Now you're thinking with Portals."

    • @CrashSable
      @CrashSable 10 месяцев назад +54

      @@Netsuki Darksiders' portals are a direct reference to Valve's portals. If Vigil had never heard of Portal, they would have come up with a different design (or more likely, not have come up with the idea for the Voidwalker at all)

    • @Netsuki
      @Netsuki 10 месяцев назад +22

      @@CrashSable Everything is inspired by something. If Doom didn't exist, Half-Life would have never been made either. But from mathematical point of view, there is no "what if". It's everything that You can easily calculate. Or maybe not easily, because You have to start to think with portals, but that's just a math. If one point of first portal corresponds with one specific point of the other one, it's all calculable, computable. And we know how these portals work, so anything we don't know, can be just simply calculated.

  • @The2wanderers
    @The2wanderers Год назад +21458

    I can see why the game designers avoided dealing with this through the simple expedient of making the portal close if it's moved.

    • @dkskcjfjswwwwwws413
      @dkskcjfjswwwwwws413 Год назад +1527

      movable portals are actually possible, and are only used once in portal 2
      the reason you dont see it more often is because the physics are completely broken when you enter a moving portal

    • @giaxo1739
      @giaxo1739 Год назад +27

      @@dkskcjfjswwwwwws413 This has to do with the fact that portals in the portal games have temporary invisible platforms generated to prevent players from getting stuck, among other generated structures that you can't see and often only exist for a few seconds, if even 1.

    • @danielgreenwood793
      @danielgreenwood793 Год назад +741

      Technically all portals are moving because motion is relative. The portal to the moon was orbiting the earth portal

    • @weckar
      @weckar Год назад

      @@dkskcjfjswwwwwws413 Chop those neurotoxin tubes.

    • @J0hnB09
      @J0hnB09 Год назад +204

      @@danielgreenwood793 in portal those are perfectly still.

  • @ZackRappMusic
    @ZackRappMusic 6 месяцев назад +1347

    It’s shocking how well you explained such a trippy and abstract idea in such a short amount of time

    • @kavearn2
      @kavearn2 6 месяцев назад

      "5 days ago" 💀💀💀💀

    • @ZackRappMusic
      @ZackRappMusic 6 месяцев назад +23

      @@kavearn2 ... your point?

    • @figuregaming3872
      @figuregaming3872 5 месяцев назад +1

      69th like

    • @deoxal7947
      @deoxal7947 2 месяца назад

      when you have crazy math and computer skills, stick figure animation ability.

    • @stevenbmitems
      @stevenbmitems 2 месяца назад

      I always think the thumbnail is the eye of sauron.

  • @santiagodellarosa9405
    @santiagodellarosa9405 8 месяцев назад +577

    0:12 R.I.P Bob 2022-2022

    • @Luigimaestro
      @Luigimaestro 3 месяца назад +5

      Roo

    • @Meme_angel
      @Meme_angel 3 месяца назад +19

      BOOOB NOOOOOOOOOOO

    • @chilliamlikeschillies
      @chilliamlikeschillies 3 месяца назад +6

      @@Meme_angeluhhh

    • @rare.rubies14
      @rare.rubies14 Месяц назад +3

      @@chilliamlikeschillies LMAOOOOOO 😭😭😭😭💀💀

    • @ed_cmntonly
      @ed_cmntonly 21 день назад +4

      @@Meme_angel 1 less O and that would be something else

  • @TamDNB
    @TamDNB Год назад +7330

    Portals actually are everywhere, the problem is they're all back to back, with no way to separate them

    • @jeeBisOkay
      @jeeBisOkay Год назад +415

      just like ninjas...

    • @JaydenET
      @JaydenET Год назад +207

      what if 3d space is the portals

    • @sol_in.victus
      @sol_in.victus Год назад +189

      doors.

    • @Carewolf
      @Carewolf Год назад +99

      It is the same problem with monopoles.

    • @kspangsege
      @kspangsege Год назад +90

      Well, in a sense you are right. There are theories about how space emerges from tiny wormholes (ER = EPR). A portal is kind of a simplified wormhole, maybe 🙂

  • @dr_birb
    @dr_birb Год назад +3439

    I like the fact that if you're thinking with portals, they always will be blue and orange.
    It's hard to imagine using other colors for em.

    • @Grizzlox
      @Grizzlox Год назад +95

      Ive always preferred purple for other reasons

    • @Wajze
      @Wajze Год назад +141

      Well They are really god fucking games

    • @snerttt
      @snerttt Год назад +67

      I mean, even in the game there's more than two colours. In co-op mode eventually there has to be 4 simultaneous portals.

    • @tuser8
      @tuser8 Год назад +90

      @@snerttt Still works, each character is blue and orange respectively and has portal colours reflecting the components of that
      Orange has red and yellow
      Blue has cyan and indigo

    • @novarender_
      @novarender_ Год назад +8

      @@tuser8 never thought of that!

  • @Marshall_ROBLOX
    @Marshall_ROBLOX 11 месяцев назад +233

    This is a troubling thought that I had as a child ever since the release of Portal 2. Thank you so much for solving this 😊

  • @Marcin_Nyczka
    @Marcin_Nyczka 10 месяцев назад +76

    I'd love for you to make a similar video about a more general problem with so-called scaling portals, i.e. those that vary in size, and when something falls into one portal, it comes out of the other with a proportionally changed size. For example - the blue portal is 7 times bigger than the orange one, which means that if a 1.75 meter tall man entered the orange portal, a 12.25 meter tall giant would come out of the blue one. However, if the same 1.75 meter tall man entered the blue portal, a 0.25 meter tall dwarf would emerge from the orange portal. My question is - what would happen if you threw a smaller portal into a larger one, and would it be possible to throw a larger portal into a smaller one if they had the right shapes, and if so, what would be the effect. You will make me very happy if you make a film about it.

    • @HeraldOfOpera
      @HeraldOfOpera 3 месяца назад +6

      Someone else mentioned a game called Superliminal where this is a puzzle solution... because you're trapped in a recursive set and need to destroy reality to continue.

    • @dan.w.2432
      @dan.w.2432 14 дней назад

      Wouldn't throwing one portal into the other equalize the sizes? If one portal is a ratio from another portal, say 2x, and you throw a 1m long portal into a 2m long portal in a way that fits, you'd have 2 2m portals after

    • @Marcin_Nyczka
      @Marcin_Nyczka 14 дней назад

      @@dan.w.2432 Just the opposite. What comes out of the smaller portal should be smaller than what goes into the larger one. So if we insert a smaller portal into a larger one, an even smaller copy should come out of the smaller one, and from that copy an even smaller one, and from that an even smaller one, and so on ad infinitum. So, referring to your example - if we insert a 1 m portal into a 2 m portal, then a 0.5 m portal should come out of the 1 m portal, a 0.25 m portal comes out of it, a 0.125 m portal comes out of it, and so on ad infinitum. This is what I get from my calculations, although this answer makes me have even more questions. If I had infinitely many such increasingly smaller portals, what would happen if two different objects entered two different ones? Which of them would come out through the larger portal, or maybe both of them would come out at the same time (but how is that possible)? If I looked at a larger portal, which of the smaller portals would I see there? If I wanted to put the smaller portals back in, but only two of them, and leave the rest untouched indefinitely, what would happen? If a person entered a large portal, and infinitely many small copies of it emerged, which of them would contain the consciousness of the person who entered? If I hit one of his copies (but only one), would the original remember it after returning through the small portal and exiting through the large one (if returning was even possible)?

  • @mt_xing
    @mt_xing Год назад +41668

    Someone's been replaying Portal a lot haven't they?

    • @dharunrahul1700
      @dharunrahul1700 Год назад +514

      I wonder who is that

    • @Wrenosaur_
      @Wrenosaur_ Год назад +329

      Me, probably.

    • @proglitcher1231
      @proglitcher1231 Год назад +83

      yep

    • @KJ4EZJ
      @KJ4EZJ Год назад +154

      Funny coincidence, I also just started back through the Portal series because I got my Steam Deck. Crazy timing.

    • @guilhermetito2003
      @guilhermetito2003 Год назад +56

      Since Portal 2 will be given away for Xbox Live Gold users I'll go and play it one more time

  • @puzzLEGO
    @puzzLEGO Год назад +4214

    Portal physics must be the thing that keeps this guy up at night and he had to explain it or he would die from curiosity

  • @betterbuilt5859
    @betterbuilt5859 2 месяца назад +3

    2:56 The Perfect Corcle!,!

  • @justanormalguy979
    @justanormalguy979 10 месяцев назад +44

    welcome to “I don’t understand anything but this is cool”

  • @reconbomb0013
    @reconbomb0013 Год назад +5809

    Glad to see Portal and Portal 2 are still iconic enough to be the way portals are drawn in 2022

    • @reznovvazileski3193
      @reznovvazileski3193 Год назад +336

      yet still not iconic enough for valve to get off their lazy asses and make us a portal 3 :c

    • @xdrakken4710
      @xdrakken4710 Год назад +324

      @@reznovvazileski3193 valve can't count that high smh

    • @ToxicBastard
      @ToxicBastard Год назад +73

      @@xdrakken4710 They made:
      3 games with teleporters
      3 games with Ellen McLain
      3 games with sentry guns
      3 games with scientists of questionable sanity
      3 games with secret underground bases
      3 games where you can disintegrate your foes
      All in one box
      They love doing things in threes

    • @MelodiesFromTheStars
      @MelodiesFromTheStars Год назад +47

      @@reznovvazileski3193 apparently there was a portal 3 VR planned but it caused motion sickness

    • @reznovvazileski3193
      @reznovvazileski3193 Год назад +26

      @@MelodiesFromTheStars Yea I can kinda imagine that lmao that sounds nauseating and I'm not easily motion sick :')

  • @electricpaisy6045
    @electricpaisy6045 Год назад +3932

    I like how he just talks about Portals like the ones from the game are the universal standard when we talk about Portals.

    • @ggmann13
      @ggmann13 Год назад +214

      Well what is ironic about that is the one from the game don't even function like this. So if he were going off the portals and the rules from that world, then this entire video is much like the cake, a lie.

    • @xradar8349
      @xradar8349 Год назад +26

      What is different about the ones from the game?

    • @ggmann13
      @ggmann13 Год назад +134

      @@xradar8349 the portals from the game have a certain set of rules and laws in adherence with the world of portal. When one portal is placed with no link to the other side, it remains closed until the second portal is on a stationary surface. So it is impossible to fire one side of a portal link into the other. Therefore this video is not going off the rules of the portals in the game. So no, the man doesn't talk about portals in the game being the universal standard, because if he were doing that then the entire video would be incorrect. Which it is, if based on a fictional idea in a fictional realm with already well established (albeit also fictional) rules for how _those_ portals function.
      The more I think about it the more this entire video irritates me hahah.

    • @electricpaisy6045
      @electricpaisy6045 Год назад +56

      @@ggmann13 true but he talks about them being orange and blue and being connected to each other and stuff. A portal could be anything if you just call it a portal with no further specification like he did. Could be the portals from Rick and Morty for example or just a normal door. He just starts talking based on the game and makes an "what if the portals from the game where actually like this?" out of it.

    • @ggmann13
      @ggmann13 Год назад +12

      @@electricpaisy6045 yes exactly he could have used portals from rick and Morty or just fictional portals full stop lol. But when he immediately pulled the portals from _portal_ he fucked up by pigeon holing himself like he did.

  • @ixelaria
    @ixelaria 9 месяцев назад +41

    I love that you used the Companion Cube! The Portal references are amazing!

  • @EmceeJoseph
    @EmceeJoseph 6 месяцев назад +12

    An important detail here is that each portal must have a backing that blocks entry such that entry is possible only through the coloured fronts of the portals. Changing that changes so much.

  • @AmoghA
    @AmoghA Год назад +5285

    I'm convinced Henry is making real, working Portals and is posting videos of him testing new features for people to point out so he can fix it. Very effective debugging process.

    • @livedandletdie
      @livedandletdie Год назад +35

      Doubtful, as he is thinking of them as objects, while they're literally non-objects. It's like saying, I'm going to pass this void through this other void... There's nothing there, a hole is not an object.

    • @anandsuralkar2947
      @anandsuralkar2947 Год назад +75

      @@livedandletdie when u r talking about passing portal through portal u have to assume them to be material

    • @emmanuelakalusi3690
      @emmanuelakalusi3690 Год назад +21

      @@livedandletdie no he said they were on objects. The portal itself is not an object no shit it’s a wormhole

    • @Blueissocool927
      @Blueissocool927 Год назад +32

      @@livedandletdie You can clearly see in the drawing that they are ontop of a metal plate

    • @Blueissocool927
      @Blueissocool927 Год назад +7

      The blue portal is attached to the plate to the plate going through takes the portal with it

  • @Lunarcreeper
    @Lunarcreeper Год назад +4335

    i love how portal has completely changed how we interpret portals and we always see it as one orange and one blue one

    • @OLLGY69
      @OLLGY69 Год назад +84

      Geometry dash portals also look like the Portal ones

    • @cycrothelargeplanet
      @cycrothelargeplanet Год назад +6

      Yeah

    • @angulinhiduje6093
      @angulinhiduje6093 Год назад +78

      @@OLLGY69 and many many more, because of the game portal (which is way older than geometry dash)

    • @ThatWhichObserves
      @ThatWhichObserves Год назад +13

      @@angulinhiduje6093 Honestly, I'm still stuck on Diablo 1 and 2 portals, since, while looking like portal's portals, come so much earlier stylistically that I wonder if some design queues weren't derived from them

    • @glados4765
      @glados4765 Год назад +34

      You're welcome. That is what we achieve at Aperture Laboratories. Making the impossible, possible.

  • @rooddy.
    @rooddy. 4 месяца назад +2

    This is one of the greatest videos I've ever watched.

  • @RhodaKshba
    @RhodaKshba Месяц назад

    you always deliver content that's both thought-provoking and enjoyable!

  • @gpanag93
    @gpanag93 Год назад +6744

    Making this animation seems more difficult than making an actual portal. Very good job

    • @jwonz2054
      @jwonz2054 Год назад +51

      That is what they did with programming...

    • @abhirupkundu2778
      @abhirupkundu2778 Год назад +168

      @@jwonz2054 go make this animation with programming. If u dont do it you are fucking doomed

    • @netherportals
      @netherportals Год назад +16

      Blender gets it.

    • @technotwitchyt
      @technotwitchyt Год назад +6

      @@abhirupkundu2778 bet

    • @georgiokoev5062
      @georgiokoev5062 Год назад +2

      mb dislike was accidental

  • @swivel_z1371
    @swivel_z1371 Год назад +2681

    Crazy how simple the explanation for this is, it really makes it feel like an actual science

    • @witherschat
      @witherschat Год назад +105

      It's non-euclidian space/plane study. Technically science, but in the Math department

    • @swivel_z1371
      @swivel_z1371 Год назад +44

      @@witherschat I think a professor told me that Math and Science are alike in that Science qualitatively explains Math, and Math quantitively explains Science

    • @user-bs2um7li8j
      @user-bs2um7li8j Год назад +3

      @@swivel_z1371 yah but Math only tool and if dont use physic right math will not explains any. Actualy this vido explaonetion wrong. Autor
      does not take into account portal physics he make only Math and its looks right but its dosent.

    • @swivel_z1371
      @swivel_z1371 Год назад +3

      @@user-bs2um7li8j And that's what's nice about science, you can say it's wrong and maybe be right since it's theoretical. But the simplest explanation is almost always correct. The more you have to make exceptions and special rules, the less likely you are to be right.

    • @user-bs2um7li8j
      @user-bs2um7li8j Год назад

      @@swivel_z1371 Actualy no. Its easy to modulate Portals in real life. Physic of portals founded of 4 dementional space. 3D univers lockete in 4D demention and if you make 2 holes and connect them outside 3D in 4D you get portal. So now lets go to 2D univers in 3D demention and repirt . Tacke paper fold it and make 2 holes 1 near edge and enother right at edge. Firt will be illustrait 2 portals located next to each other (1 on one side of the sheet, the other on the other). Second its how this 2 holes will act when cross each others.

  • @user-kw8ge8gp7w
    @user-kw8ge8gp7w 8 месяцев назад +1

    Very well explanada and simplified

  • @yeeeehaaawbuddy
    @yeeeehaaawbuddy 4 месяца назад +1

    This was extremely entertaining and hilarious! Great idea

  • @DeJay7
    @DeJay7 Год назад +2911

    Several things to mention:
    1. I loved the explanation, super clear and logical, every part made sense.
    2. The animations are beyond my comprehension, this is absolutely fascinating to me how smooth and accurate they were.
    3. I guess you're really into portal physics, huh.

    • @SheyTheGay
      @SheyTheGay Год назад +13

      Short, sweet, straight to the point. Also the BEST explanation of this question i've seen TO DATE.

    • @Olflix
      @Olflix Год назад +9

      @e Shut

    • @gloriousGab
      @gloriousGab Год назад

      number 1 is 100% confirmed, even a dumbass like me understood it

    • @codiserville593
      @codiserville593 Год назад

      He's probably thinking with them

  • @godfreyw5412
    @godfreyw5412 Год назад +7183

    I remember in the game "superliminal", when you put a portal in a portal, the world will crash and that is actually how you proceed with the game (to free yourself from a self-iterating room). Now I learn that the action will not cause the universe to crash :)

    • @commandocat7675
      @commandocat7675 Год назад +153

      yea but thats because the portal is small

    • @godfreyw5412
      @godfreyw5412 Год назад +221

      @@commandocat7675 Oh I see. One of the portal was smaller than the other, which was a different scenario.

    • @BlazeKnight1561
      @BlazeKnight1561 Год назад +71

      Not crashing the universe is no fun though :(

    • @tookie444
      @tookie444 Год назад +37

      Yeah superliminal is such a trippy game

    • @builder1013
      @builder1013 Год назад +55

      Um… I thought this one out and what’s happening is you have a room that contains itself, so when you threw the room outside of itself it would’ve become an infinite amount of rooms in white space since there was nothing outside the room, or something like that. Hopefully Minute Physics makes a video on it, I would like to understand it more than just my drawings.

  • @antisony2008
    @antisony2008 9 месяцев назад +1

    I thought this was going to be an impossibility with a super complicated metaphysical answer.
    Makes me think of when questions that seem complicated to us will one have a 4 minute explanatory video :)

  • @8-bitnicolai5
    @8-bitnicolai5 5 месяцев назад +5

    It would have been nice if you put numbers on the orange portal too, that way we can keep track of which part of the blue portal the blue portal should be coming out of.

  • @noelzehnder2190
    @noelzehnder2190 Год назад +2366

    I would love to know what happens when you enter the portal that is half immersed in the other portal

    • @donottrustanyonelol
      @donottrustanyonelol Год назад +159

      the portals would be pushed apart or get stuck with ur body. if appriote preasure is applied you would be squashed together (possibly die/expolode). If the portal is infinitly thin and you are next to the corners of the portal, you may be sliced however your own body would probably stop you from being sliced.
      edit: I get now that it'll be impossible to be sliced because there is no space within the portal. however you could still be crushed as long the portals move closer together while you're still stuck inside them. There is no need for high speeds for this to happen. simply applying enough force to move the portals while you are inside them are suffienct. I woudl think this force would be exactly the same as the force needed to crush you between two objects that are not portals

    • @chaireater4209
      @chaireater4209 Год назад +321

      You would either climb through, or get stuck because you bumped into yourself or your portal and are forced to climb out. The portal wouldn't slice or crush you unless you went in at very high speeds and fell on yourself. The portal doesn't change shape, just location and so would you.

    • @danielsime911
      @danielsime911 Год назад +95

      Might depend on the angles but I imagine you might try to reach your arm in and then get blocked by your own arm

    • @ajfraser224
      @ajfraser224 Год назад +61

      Pain, that's what happens

    • @CinJyxxe
      @CinJyxxe Год назад +28

      I feel like you would just end up unable to fit through until the intersection was resolved due to your own body being in the way unless it was a very large portal. I could be wrong though.

  • @Secarious
    @Secarious Год назад +2228

    I love it when someone adds complete science to science fiction. So intriguing.

    • @nolesy34
      @nolesy34 Год назад +5

      Hello inception

    • @glados4765
      @glados4765 Год назад +21

      Aperture Labs makes the impossible, possible.

    • @alienhomicide
      @alienhomicide Год назад +5

      like, dragon anatomy

    • @nolesy34
      @nolesy34 Год назад +1

      @@alienhomicide mind.
      Blown

    • @nolesy34
      @nolesy34 Год назад

      @SkeLLy The furnace?

  • @AaronKlapheck
    @AaronKlapheck 8 месяцев назад +9

    Great Videos, keep it up!!!

  • @ThatOneScreenSaver
    @ThatOneScreenSaver 4 месяца назад

    ive rewatched this video so many times

  • @schemdubulardy
    @schemdubulardy Год назад +1000

    Rest in Peace editor of this vid, the pain you went thru was not in vain. Good video.

    • @stanleybochenek1862
      @stanleybochenek1862 Год назад +6

      oof

    • @Cornholio8787
      @Cornholio8787 Год назад +9

      why is he dead?

    • @joeisdude
      @joeisdude Год назад +88

      @@Cornholio8787 just take a look at the visuals

    • @iamhungry1412
      @iamhungry1412 Год назад +39

      @@Cornholio8787 he meant rip in a rhetorical sense, because the editor had to work so much

    • @glados4765
      @glados4765 Год назад

      Dont worry, it was for the best. The editor was showing signs of intelligence and had to be placed into the emergency intelligence incinerator.

  • @WackoMcGoose
    @WackoMcGoose Год назад +587

    This was actually a plot point in Problem Sleuth, where portals inside window frames (powered by electric plugs) were a recurring device. If you put a window through its counterpart, the stuff in this video happens, but since the windows have the same physicality as what you'd get at the hardware store, they clunk up against themselves and prevent infinite recursion... unless forced together with sufficient force. Then they explode. Violently.

    • @Whoolgans
      @Whoolgans Год назад +42

      did not think id see mspa here

    • @pirilon78
      @pirilon78 Год назад +8

      @@chronocases9752 our brains dont like infinites so we have no idea what would hypothetically happen if you created infinite recursion

    • @e4Bc4Qf3Qf7
      @e4Bc4Qf3Qf7 Год назад +3

      @@pirilon78 thats not true. All of calculus is infinite recursion.

    • @pirilon78
      @pirilon78 Год назад +6

      @@e4Bc4Qf3Qf7 i said we dont know what would happen. Theres a difference between numbers and reality

    • @e4Bc4Qf3Qf7
      @e4Bc4Qf3Qf7 Год назад

      @@pirilon78 Demonstrably incorrect. If your numbers aren’t an expression of reality, you’re doing them wrong.

  • @ZephaniahBreeze
    @ZephaniahBreeze 3 месяца назад

    This is exactly the solution I came up with when I was little, but I've never seen it explained so clearly! Pretty dope

  • @zelly4914
    @zelly4914 6 месяцев назад

    This was super entertaining, thank you

  • @SuperWiiBros08
    @SuperWiiBros08 Год назад +965

    can't wait for real portals to be invented just for either this to happen something catastrophic that breaks all laws of physics

    • @murray821
      @murray821 Год назад +14

      Quoting Dwayne Johnson from the movie Doom: I don’t do nano walls.

    • @WUZLE
      @WUZLE Год назад +42

      Portals as they exist in-game break the law of conservation of energy, so I wouldn't hold your breath waiting for them to be developed.

    • @pain16tdn45
      @pain16tdn45 Год назад +7

      @@WUZLE And breaks relativity too

    • @hyperx72
      @hyperx72 Год назад +3

      @@pain16tdn45 How so?

    • @realogamusic
      @realogamusic Год назад +3

      Tbh if portals would exist like p2 this wouldnt work. As the portal wormhole is just relative distance. Blue and orange will always be a certain amount of units apart unless reopened at another position. Thats also why moving portals wouldnt work... idk about other fictional portals though so w/e lmao

  • @dxjxc91
    @dxjxc91 Год назад +616

    I was having a hard time following why the blue portal "bent" along the surface of the orange portal, so I had to draw it out myself continuing the blue portal through the orange portal in a "virtual space" where I could see how the angle of the blue portal loops in on itself and thus comes out of the orange portal at that lower angle.

    • @demonking5934
      @demonking5934 Год назад +3

      What will happen if the blue portal is smaller than the orange one?

    • @jotareiss
      @jotareiss Год назад +14

      @@demonking5934 it cannot be. If so, they "break the rules", like how an object bigger than the smaller portal will behave if it passes through the bigger portal?

    • @Bogdan100pink
      @Bogdan100pink Год назад +4

      @@demonking5934 My guess is that the blue portal would become smaller as it's coming out of itself, if there were 2 portals one bigger and one smaller it would act like in the game superliminal where the object that enter the smaller portal would become bigger and bigger until it can't fit through the portal anymore and if the object enters the bigger portal it would get smaller and smaller until you can't physically see it anymore.

    • @SDLXVI
      @SDLXVI Год назад

      🤓🤓

  • @Alexandragon1
    @Alexandragon1 4 месяца назад

    Thx for this amazing video!

  • @vladislavkaras491
    @vladislavkaras491 Год назад

    It was pretty interesting to watch.
    Thanks!

  • @_Gecko
    @_Gecko Год назад +662

    “Placing a *portal* within a *portal* instantly destroys both items and opens a gate to the Astral Plane. The gate originates where the one item was placed inside the other. Any creature within 10 feet of the gate is sucked through it to a random Location on the Astral Plane. The gate then closes. The gate is one-way only and can't be reopened.”

    • @Tacid_Krios
      @Tacid_Krios Год назад +60

      Finally, something I understand in the comments

    • @josephcowan6779
      @josephcowan6779 Год назад +21

      Okay yeah this seems accurate

    • @josephkerr5018
      @josephkerr5018 Год назад +18

      @@Tacid_Krios yeah cause it's complete mumbo jumbo garbage 🤣

    • @Tacid_Krios
      @Tacid_Krios Год назад +13

      @@josephkerr5018 What is complete mumbo jumbo garbage?

    • @minuteman1043
      @minuteman1043 Год назад +89

      @@josephkerr5018 It's the Dungeons and Dragons rule attached to some objects that involve demi-planes or inter-planar travel. Don't really care either way, but that's what their referencing.

  • @capnfoo
    @capnfoo Год назад +897

    Portal was based on Narbacular Drop, and you can shoot portals through other portals in that game. Valve hired the entire staff that made Narbacular Drop and they made Portal.

    • @nanifa6082
      @nanifa6082 Год назад +115

      Not staff, students. It was an amazing school project.

    • @oldspicewhistle8191
      @oldspicewhistle8191 Год назад +39

      Shooting a portal creation projectile through another portal isnt the problem here at all
      also everyone already knows that lol

    • @generaldirection5123
      @generaldirection5123 Год назад +32

      I played that before. Shooting new Portals thru an existing Portal sounds like a cool idea at first, but you realize after a while it's basically cheating. For example if you just stand in front of an orange Portal looking thru it, you can shoot new blue Portals thru that until it reaches the entire end of the map, then just walk thru it once and you're done.

    • @Darkclowd
      @Darkclowd Год назад +9

      @@generaldirection5123 you'd have to design the puzzles differently, but it's not difficult to see how one could do so.

    • @MarkosDGE
      @MarkosDGE Год назад +6

      @@oldspicewhistle8191 i didnt know that already

  • @ItsBreeze-on-Top
    @ItsBreeze-on-Top 9 месяцев назад

    thank you for this explanation

  • @JaceDanielFilms
    @JaceDanielFilms 7 дней назад

    What is the edge of a portal? Like say you touch the red or blue ring, is it solid like touching the frame of a window? Or what? And what if you reached your hand in and wrap your arm around the edge and "behind" the portal?

  • @ClothesCat
    @ClothesCat Год назад +309

    This is probably your best video in years. It helps solve one of those nagging annoying ideas in the back of your head that you can't visualise yourself but is definitely possible to investigate and find a conclusion to. I feel like years of a little nugget of stress in my mind has vanished.
    This video is a god damned public service.

    • @MouseGoat
      @MouseGoat Год назад +5

      lol so freaking true, well put into words!

  • @Derpinator01
    @Derpinator01 Год назад +948

    Now for the real question: How would the momentum of a portal passing through itself affect its trajectory?

    • @FreshPe
      @FreshPe Год назад +74

      A portal does not have any mass I guess

    • @RC_Engineering
      @RC_Engineering Год назад +37

      Do portals have momentum?

    • @peterbonnema8913
      @peterbonnema8913 Год назад +61

      do portals have mass?? Well they don't move with the speed of light.... hmmm

    • @degiguess
      @degiguess Год назад +30

      portals are not made of matter thus they have no mass thus they have no momentum

    • @Anankin12
      @Anankin12 Год назад +28

      Can you assign momentum to space itself? You can with radiation, but I don't know enough about general relativity to know whether one can assign momentum to a space wave, or gravitational wave, or a space topology thingy like a portal must be.

  • @elijahmashter9587
    @elijahmashter9587 7 месяцев назад

    A wonderful explanation

  • @okavara3833
    @okavara3833 3 дня назад

    This was a thing in problem sleuth, where the windows were portals, and pushing a window through a window would cause a fractal-like exponential stacking of windows within windows until it lead to a huge explosion lol. It was later used as a way to help defeat the bad guy’s minions

  • @acat6759
    @acat6759 Год назад +1530

    If a blue portal comes through an orange portal, it then comes through itself. However, the new, rotated part of the blue portal must also have itself passing through. Krzyhau simulated this in Triple Laser, and the game crashed because the blue portal had to rendered through the orange portal infinitely many times.

    • @MichaelDarrow-tr1mn
      @MichaelDarrow-tr1mn Год назад +27

      No, the portal only appears out of one place.

    • @zyklqrswx
      @zyklqrswx 10 месяцев назад +6

      this is the question I need a professional physics answer to

    • @aykarain
      @aykarain 9 месяцев назад +2

      it works, its just... yeah

    • @cheesepop7175
      @cheesepop7175 7 месяцев назад +11

      a portal tunnel isint actually infinite, it's like pointing a camera towards it's feed where there's an infinite loop on the screen

    • @NjamNjam0
      @NjamNjam0 5 месяцев назад +2

      Heck if this is how it is then irl it should be impossible to build portals at all.

  • @milindshukla8713
    @milindshukla8713 Год назад +239

    These portal videos are a triumph

    • @rpungello
      @rpungello Год назад +37

      I’m making a note here: huge success!

    • @Asterism_Desmos
      @Asterism_Desmos Год назад +32

      @@rpungello It’s hard to overstate my satisfaction

    • @ConfuSomu
      @ConfuSomu Год назад +19

      @@Asterism_Desmos Aperture Science

    • @benprescott9217
      @benprescott9217 Год назад +2

      Portalception

    • @petsgamesandrobots438
      @petsgamesandrobots438 Год назад +19

      @@ConfuSomu We do what we must because we can

  • @timeywimeybrony
    @timeywimeybrony 4 месяца назад

    This came into my had at 2AM. Thanks

  • @Still_goblin_breath
    @Still_goblin_breath 4 месяца назад

    Think makes so much sense once you start to think about it

  • @xelane4454
    @xelane4454 Год назад +373

    I think what I found to be the most unusual about this video is how intuitive it was once explained. I've often thought about this, myself, but could never mentally work out what kind of behavior we should expect from an interaction like this.
    Lo and behold, as soon as it's explained here, it becomes obvious but I just couldn't wrap my head around it until it was explained.

  • @Ikebot
    @Ikebot Год назад +303

    I like how this question is easier to answer than the question about the trajectory of the cube.

    • @likebot.
      @likebot. Год назад +6

      Um... hi?
      Does your handle get you shadowbanned in some places too? Maybe even banned?

    • @Ikebot
      @Ikebot Год назад +7

      @@likebot. Haha yes, pleasure to meet you. I think I may have been shadowbanned on Reddit for suspected spamming (not by people but by actual bots, which is kind of ironic).

    • @MrQuinnlord
      @MrQuinnlord Год назад

      Be honest. You guys are just saying Shadow banned because you think it sounds cool, right?

    • @insertafunnyname478
      @insertafunnyname478 Год назад +3

      @@MrQuinnlord no being shadow banned is different

    • @MrQuinnlord
      @MrQuinnlord Год назад

      @@insertafunnyname478 this guy gets it

  • @OUTSIDER40
    @OUTSIDER40 9 месяцев назад

    Thank you for making this video it was so cool 😎

  • @apotatoman4862
    @apotatoman4862 10 месяцев назад

    this makes so much sense

  • @channelknightfadran7901
    @channelknightfadran7901 Год назад +775

    Interesting that it always maintains its total surface area. That makes sense, of course - I just never even would've thought of it if you asked me this out of the blue.

  • @MelancholyCrypto
    @MelancholyCrypto Год назад +2124

    I feel as though there will be some real world counterparts behind this logic and it could be useful.

    • @katsu_xd_4823
      @katsu_xd_4823 Год назад +39

      So if you throw a smaller portal in a portal then it Infinitly comes out of itself?

    • @codyhill2311
      @codyhill2311 Год назад +55

      Like portals don't actually EXIST. So yeah good luck explaining physics on imaginary objects.

    • @jd_kreeper2799
      @jd_kreeper2799 Год назад +23

      @@katsu_xd_4823 How the hell would the same two ends of a portal be different sizes?

    • @katsu_xd_4823
      @katsu_xd_4823 Год назад +1

      @@jd_kreeper2799 I'm just saying what if

    • @jd_kreeper2799
      @jd_kreeper2799 Год назад +21

      @@katsu_xd_4823 THat makes no sense though, even in-game. How would one opening be smaller than the other?

  • @M0URN3Ro
    @M0URN3Ro 6 месяцев назад

    It's crazy how im learning way more from these weird videos rather than in school or at math

  • @PedroManX
    @PedroManX 10 месяцев назад

    Amazing, very good.

  • @WhirligigGirl
    @WhirligigGirl Год назад +685

    My question is: are there any unique portal 'paradoxes' or thought experiments which involve movable "co-op portals" from the sequel? I.e., cyan-purple linked portals and yellow-red linked portals working together. It seems like it would be easy to put a nonlinked portal through a portal, but I'm wondering if there's any situations where Interesting Things Happen when you have two pairs of portals. What about more than two?

    • @lancestryker
      @lancestryker Год назад +85

      Cave Johnson would probably say "Psssh the only paradoxes we have in Aperture Science are the ones we use to dispatch the bad AI. In our R&D department, we give you our quality assurance that the testing chambers we provide are either working or broken."

    • @gastonpossel
      @gastonpossel Год назад +28

      There an independent sequel (Portal Reloaded) that shoots a third "time" portal. It actually connects 2 different worlds, one of which is a future aged/destroyed version of the "present" test facility. You have to jump between times to solve puzzles. Paradoxes can happen but the game deals with them by erasing specific changes you've made in the "future" when you modify the "present" (i.e. you can bring a cube from the future-side to the present-side and get away with two versions of the same cube, but if you move a cube originally from the present its future version would vanish -whenever it is- and pop-up in the future-side at the place you left it in the past).

    • @globalincident694
      @globalincident694 Год назад +3

      there's the thing of moving portals being weird (see youtu.be/watch?v=B19nlhbA7-E ) but that's pretty much the only other issue with portals.

    • @MA22
      @MA22 Год назад +2

      There's also the second one (which you can watch at ruclips.net/video/zDAE9A_1NA4/видео.html )

  • @FunningRast
    @FunningRast Год назад +75

    1:07 Blue Portal got a stiffy

  • @thedarktao2512
    @thedarktao2512 5 месяцев назад

    Awesome, thanks.

  • @1antti
    @1antti 4 месяца назад

    Amazing that you could pull off that animation in AE

  • @dainbramage9508
    @dainbramage9508 Год назад +503

    Warning ⚠️: Thinking with portals may blow your mind. Aperture Science would like to take this opportunity to stress it upon you that they are not responsible for any cranial mishaps due to rapid expansion of the brain. Thank you and good luck testing out there.
    I always love these portal paradox videos, although I guess this one isn't really a paradox like the others 🤔 still super interesting to see it fully rendered, you did a great job with that 👍 👏

    • @RicardoMorenoAlmeida
      @RicardoMorenoAlmeida Год назад

      🤣

    • @unluckypanda5448
      @unluckypanda5448 Год назад +3

      After i read Aperture Science the voice in my head switched to glados xD

    • @jannikheidemann3805
      @jannikheidemann3805 Год назад

      @@unluckypanda5448 Your brain doing it's job.

    • @seeker296
      @seeker296 Год назад

      For it to pass all the way through requires squeezing or infinite thinness. So its a paradox unless the portals defy physics

    • @dainbramage9508
      @dainbramage9508 Год назад

      @@seeker296 I had the same thought in the last video actually, I assumed the edges were solid like in the games because you can stand in the portals on their edge, and because they have a thickness they'd be unable to fully pass thru each other at any angle, this does work if you consider the edges to be infinitely thin but if you work with the game logic then it's a little less possible, you still get the wacky portal protrusions tho

  • @storminmormin14
    @storminmormin14 Год назад +68

    “If you put them back to back you shouldn’t be able to tell there is a portal at all and they retain this behavior…” is one of the most physicist ways of describing something.

  • @LuciansAnimations
    @LuciansAnimations 7 месяцев назад

    Thank you for answering tbis question i had this question for a while

  • @Simse12
    @Simse12 10 месяцев назад

    This was the questions ive being looking for

  • @Ryukachoo
    @Ryukachoo Год назад +144

    This explains the extremely recursive fractal effects and that video about being squished between two portals

    • @DirkSwizzler
      @DirkSwizzler Год назад +28

      Also, by default the game only does 2 graphical recursions "for real". The 3rd onward are copy pasting from the previous video frame and definitely isn't designed to work with intersecting portals.

    • @silverish9081
      @silverish9081 Год назад

      Glad it's not only me who immediately recalled that video

  • @PunkOnARant
    @PunkOnARant Год назад +144

    I am so glad someone started doing the calculations on this question BEFORE i thought of asking it!

  • @AnimatedDuck
    @AnimatedDuck Год назад

    i love the companion cube reference

  • @chinmaypanse2528
    @chinmaypanse2528 11 месяцев назад

    This is a brilliant watch right before my exam day

  • @-Xabash-
    @-Xabash- Год назад +211

    Did this in unreal engine a few years ago and it was super trippy, exactly like this demonstration shows.

    • @vladimirryabtsev6184
      @vladimirryabtsev6184 Год назад +4

      Video?

    • @UncontrolledxXx
      @UncontrolledxXx Год назад +2

      yeah and Elon Musk is my brother

    • @duckmeat4674
      @duckmeat4674 Год назад +21

      @@UncontrolledxXx its not a difficult thing to do. Portal like engine existed since 2004. There are many youtube videos how to make portals in unreal too

    • @kidness2017
      @kidness2017 Год назад +2

      @@duckmeat4674 he actually is Elon Musk's brother !!

  • @Phoenix-zu6on
    @Phoenix-zu6on Год назад +85

    I like that Valve's Portals have just become the standard when animating/making portals. theyre always orange and blue ^^

    • @joshuafischer684
      @joshuafischer684 8 месяцев назад +6

      It's a great artistic choice. They're opposites on the color wheel, making them complimentary. Complimentary colors almost always look good together and are known to attract attention.

  • @xenithfreelancer
    @xenithfreelancer 4 месяца назад

    Thanks for the clues science steve

  • @demongamer_IX
    @demongamer_IX 2 месяца назад

    This concept really screws with my mind.

  • @maxmogavero952
    @maxmogavero952 Год назад +191

    I used to think about this a ton as a kid. Thought it would be possible if you slid the portal in at a shallow angle facing itself, but I couldn't have simulated it as well as this!

  • @GeneaVlogger
    @GeneaVlogger Год назад +101

    At first it was really hard to imagine, but adding the numbers helps make it easier to understand. It definitely gets super trippy when you started changing the directions it could go through the other portal.

  • @springdude1165
    @springdude1165 Год назад +2

    I remembered wondering about how this would work, just concluded reality would just break.

  • @Why-Do-You-Care.
    @Why-Do-You-Care. 5 месяцев назад

    I knew that it kinda worked like this but I always like to imagine that if the portal comes out of itself one to many times it rips a hole in space, just because it sounds cool.

  • @shottysteve
    @shottysteve Год назад +155

    this is so cool. man. glad you had this idea to share- its really satisfying too when you see it all animated, like it just makes sense. very very cool.

    • @dark-yato
      @dark-yato Год назад +1

      He actually uses his account 😯

    • @myhelshik5844
      @myhelshik5844 Год назад

      I saw a man that did earlier it on Unity engine that had almost 60k views. So it's probably not his idea.

    • @warmachine3295
      @warmachine3295 Год назад

      Cool

    • @yee2343
      @yee2343 Год назад

      I thought that mercury got you bro

  • @KossolaxtheForesworn
    @KossolaxtheForesworn Год назад +175

    did see a screenshot once from the portal game where someone had managed to make the portals overlap a little bit.
    it looked like an infinite number of portals, I dont know how the game managed that without crashing, unless it all counts as the 2 original portals and what is seen is just visual effect and doesnt cause any strain on the engine.

    • @CloudyChair
      @CloudyChair Год назад +13

      Im guessing you're talking about portal 2
      Portal 2 already runs pretty well
      But the infinite portal thing is 2d so it doesn create an infinite space
      It just makes you think there's one

    • @arnabbiswasalsodeep
      @arnabbiswasalsodeep Год назад +6

      portal has a flag which u can set to have moving portals. It's evident from the level where u disable the neurotoxin. Also there's a max reflection depth coded in and can be changed to a max of 64 if I remember.

    • @spacebassist
      @spacebassist Год назад +4

      Crowbcat did a video on that called "crushed between two portals"

    • @spacebassist
      @spacebassist Год назад +3

      ruclips.net/video/0TZd95BCKMY/видео.html (link is separate to be safe)

    • @usokkithetree8738
      @usokkithetree8738 Год назад +5

      @@spacebassist really I'm just happy that there's a link in a youtube comment and it isn't spam or a bot trying to fish clicks.
      Legit link to a legit video of getting crushed between 2 portals. Thank you.

  • @oriananeyo6
    @oriananeyo6 4 месяца назад

    im subbing, you're actually cooler than i thought

  • @HelloKittyFanMan
    @HelloKittyFanMan 8 месяцев назад

    Cool video, thanks!

  • @bh24x
    @bh24x Год назад +245

    this process may get even more chaotic in the face of attempting to pass solid objects or just to see Einstein cry, fluids, nutonian or otherwise for extra fun through said cascading portals. nonnutonian fluids may just be a messy idea.

    • @SomeRandomDevOpsGuy
      @SomeRandomDevOpsGuy Год назад +15

      I believe the word you're looking for is "newton"ian, as in Isaac Newton.

    • @telegenicdragon8045
      @telegenicdragon8045 Год назад +30

      @@SomeRandomDevOpsGuy Don't be silly. It's "newt"onian because they're amphibious

    • @obligatoryidiot
      @obligatoryidiot 6 месяцев назад

      😂😂😂​@@telegenicdragon8045

  • @animodium2670
    @animodium2670 Год назад +44

    0:58 you're such a tease

  • @SAesir
    @SAesir 2 месяца назад

    at exactly 1:32, the below part of the blue portal where the star is directed towards right should not move downwards after it is generated by its own thickness. Just after its thickness generated which moves it downwards by the amount of its thickness, the second blue portal generated from it should move upwards passing the "very first" blue portal and moves upwards.

  • @TheOnlyTherazan
    @TheOnlyTherazan 21 день назад

    I love how surprisingly intuitive it all end up looking, especially in 2D. There's a reason we love thinking with portals!

  • @coouragee
    @coouragee Год назад +24

    Now you're thinking with portals

  • @Andrew899
    @Andrew899 Год назад +87

    I like how we are still asking (and answering) questions related to impossible to represent in reality subjects, such as portals. This of course is not limited to portals, but I have mentioned it to stay on topic.

    • @mvukovic5364
      @mvukovic5364 Год назад +2

      What happens if u pass trought a portal passing trought itself

    • @OmegaMouse
      @OmegaMouse 8 месяцев назад

      Portals are about as likely as black holes. Why should portals be science fiction if we accept worm holes, super black holes, dark matter, quantum entanglement, etc?

  • @frixti8
    @frixti8 4 месяца назад

    fun fact if you have 3 portals like red blue and green it would basicly make them disapear if you make the red one go trough the green one and the blue trought the red one making a loop like square and if you push it further it would be like somewhat 4d

  • @Hold3n916
    @Hold3n916 8 месяцев назад +2

    @ 1:26 Now the real question is what is the “top” and bottom of a portal, and what is the front and back side when they exist in free space 🤯

  • @Jansenbaker
    @Jansenbaker Год назад +89

    Impressive. Most impressive.
    Mid-way through the vid, I imagined (in my own thought experiment) the portals could go crazy, flapping about trying to equalize, then spin along each other, eventually blowing up.

    • @maker0824
      @maker0824 Год назад +4

      Why? I don't see at all what would bring you to that conclusion

    • @Jansenbaker
      @Jansenbaker Год назад +4

      @@maker0824 Just some fun.

    • @Emanuele_Polisena
      @Emanuele_Polisena Год назад

      I am pretty sure a portal would never explode.

    • @TheMusicalFruit
      @TheMusicalFruit Год назад +2

      @@Emanuele_Polisena They said the same thing about exploding lemons and look how that turned out.

    • @archlich4489
      @archlich4489 Год назад

      Noice!

  • @bassett_green
    @bassett_green Год назад +5

    I'm giggling so much at the animation @1:10

  • @JimmWasHere
    @JimmWasHere 4 месяца назад

    i love you companion cube, nobody knows me like you do.

  • @joaoguilhermegomeshaiyashi7793
    @joaoguilhermegomeshaiyashi7793 11 месяцев назад +2

    Spot taking notes

  • @SomeRandomDevOpsGuy
    @SomeRandomDevOpsGuy Год назад +311

    What would happen if the two portals were half-way intersected, then you went through at an angle such that you entered both portals simultaneously?

    • @gawkthimm6030
      @gawkthimm6030 Год назад +82

      fictional science lab invents portal gun, random youtube commentor uses portal gun to create duplicates of themselves... quick someone write it as a plot device for Portal 3

    • @Adhasin
      @Adhasin Год назад +100

      You probably wouldn't be able to do so : your body parts would collide together and not let you in

    • @ybrian667
      @ybrian667 Год назад +12

      @@gawkthimm6030 it would be called portal printer
      (it prints you)

    • @Marcara081
      @Marcara081 Год назад +43

      You would just fold yourself or tear yourself apart. But if you're just jumping in, you'd collide with yourself or the portal edge and fall away from the portals, no worse for wear. The gravity would make you puke though.

    • @aredub1847
      @aredub1847 Год назад +9

      bad happens

  • @-Senan
    @-Senan Год назад +4

    1:05
    man why does shit like that make me giggle

  • @trixsomethingsomething2095
    @trixsomethingsomething2095 8 месяцев назад

    Finally, someone finally answered a thought I had since a child!

  • @colbykennedy4327
    @colbykennedy4327 Год назад

    That deserves a sub