<<@ssalovaa says : Okay, here's a big wall of text. This is how I solved these portal paradoxes in my fantasy setting. Basically, there's this thing called space magic. A witch is able to use space magic to manipulate space, gravity, or both. It's the ability to control the topology of the world that the rules of relativity and whatnot apply within. Imagine the world as a graph. Portals are like drawing a new line between two nodes. Nothing changed and nothing moved, there's just a new direction you can go. It's up to you to start walking in that direction with your regular feet. In a nutshell, space magic works like this. 1. It is entirely impossible to use space magic to change matter or motion directly. A closing portal can't cut someone in half, you just end up on whichever side it's easier for you to be on, as if you'd always been there. 2. Maintaining the altered space consumes magical energy continuously. 3. When the magical space distortions form or unfold back to normal, it happens in whichever manner requires the least mana and has the least resistance, no matter how engineered and involved that way may seem to humans. 4. Portals also teleport the direction of gravity; gravitational potential is solved after portal topology, not before. The direction of gravity will arrange itself specifically to avoid infinite energy. 5. The portal isn't a flat surface, the openings are spherical. 6. The portal isn't an object, it's a feature of topology. It can't really be considered a reference frame, and you certainly can't put it through another portal. That just isn't a thing. For example: - If you try to teleport inside a wall or something, you just hit the wall. - Yes, this means space magic can access the middle of a solid block of matter without cutting it out. You'd see it just floating there, like a blob of matter replacing the portal. It doesn't fall because it's still connected to the object, unless the whole object can fall, or you can forcefully tear it apart. But that requires an external force. Remember, you're not actually changing matter or motion. The Portal Paradox: Momentum is conserved. But this isn't really the same as a special relativity wormhole, not really. According to the rules of the magic system I've established, I think the cube behaves more like Scenario A. As soon as the cube enters the portal, it's not really in either one place traditionally. It's kind of wherever it's simpler for it to be. If the other end can allow it to fall, it'll fall. Either way, an external force needs to push it through. You also can't really slam the portal into the cube that way, because as stated, this space magic newtonian wormhole thing isn't a flat surface like in Portal. Final Portal Puzzle to Ponder: If you walk through a moving door, you don't inherit the doorway's movement. It's a door. Again, space magic just changes the shape of the game board, not the pieces on the board. The cube shoots whichever way the teleported gravity happens to veer as it realigns with normal gravitational field lines. Another Portal Paradox #1: If the cube can fall, it will fall upwards through the stopping portal as per the teleported gravity thing. If it's unable to fall, the cube stays put. Another Portal Paradox #2: The concept of sandwiching the portals like this doesn't really apply if the portals aren't flat planes. You'd need a four-dimensional cube. Since you don't have one, I don't have to answer this question. The portals also aren't objects and can't be heavy or not heavy, and you can't move them with pistons.>> <<@klibe says : if the portal stops halway and we're thinking of portals in relativistic ideas, isnt it the same as the cube stopping halfway?>> <<@jaydentplays7485 says : For paradox 2, it creates an extreme amount of kinetic energy, to the point where all of the mass becomes energy, due to e=mc^2. Kaboom! đŸ’„>> <<@jaydentplays7485 says : Only half sticks out, then, due to gravity, it falls the rest of the way in>> <<@FedGrod says : None of these are paradoxes, they're just questions without enough information>> <<@FedGrod says : I say C but it shoots at a lower velocity>> <<@UrFriendClippy says : 0:45 Portals are wormholes, so there is likely a correct answer, but there is no way to verify it>> <<@prodigal_southerner says : What if you jerk the portal backwards when the box is halfway through?>> <<@Nuculer9001 says : One of the leaked pre-release versions has moving portals in it still.>> <<@Zaimaen says : Portals are just like doors. If you move a door toward an object, the object does not interact with the door. And if an object is pushed through a door, it retains its momentum and everything else. The only difference between a portal and a door is that the object appears on the other side instead of somewhere else.>> <<@rasst17 says : Portals don't interact with objects, third Newton's Law is not applicable.>> <<@JoshuaHoskins-y8o says : What would happen if you have the cube and one other portal put it halfway through and close the first one will it ultimately leave that half broken or would it create a paradox>> <<@RohitSingh-007 says : Portals are fictional is a FICTION😂>> <<@CadeBunker says : I think the most logical explanation is that portals either can't move or have to be moving (and oriented) the same way. So, if you moved a portal halfway through a box, the other portal would be moving the same way, so the cube wouldn't move on either side, and you couldn't do a sandwich because some law of physics would be broken>> <<@MungoTron2009 says : i disagree with the moving portal stopping half way think of it that the portals are backed up against eachother so there effectively a fancy hula hoop if you drop a hoola hoop on an object and it stops halfway the object isn't going to fly up out of the way. then you could argue that when you drop a portal fully on an object it flies out the other portal but when you drop a hoola hoop on an object or throw it so it passes over the object still leaves at the same speed relative to the hoola hoop>> <<@cakekookabura says : I don't think the moving portals would add momentum to the objects going through it, but it's an interesting thought>> <<@olliewally7150 says : 2:37 Wouldn’t it just stop regardless of moment? And also, how can portals have weight? But now I think about it wouldn’t it just move continuously through the portals like it’s a Minecraft flying machine looping>> <<@STJukes says : With the first paradox, you are creating energy from nothing. If we assume it's easy to move the portal and you move it fast over something heavy then you are easily moving something heavy. Some clever contraption could be made to generate electricity. some kind of portal spinning around repeatedly churning through water like a watermill. You artificially increase the speed of the water and that can generate free energy. Something tells me the universe won't like that violation of conservation of energy.>> <<@Alex-d3z9m says : B>> <<@IsaacRZ-m8e says : You broke my brain! Again!>> <<@rara3538 says : important thing to understand: there's no 2 portals, there is only 1 portal. the 1 portal cannot change shape, it breaks all physics. what this means tldr is that the position/rotation of blue and orange cannot change, or it breaks physics>> <<@mambe4349 says : Optozorax makes some great videos about this kinda thing>> <<@el_androi1203 says : Pausing at 1:13. My theory is the two halves of the cube will experience a pulling motion as the portal decelerates. Because the first half that went through would have had that momentum, but the other wouldn't. So as the portal slowed to a stop, they would pull apart, and the cube will break depending on how strong it is or how much speed the portal initially had.>> <<@isfiyiywafibc6qaiiiiiiiiii570 says : The idea of portals having mass is super interesting. When I paused the video I answered it from two perspectives the massful one, where we agree and a massless portal stopping abruptly where I think the cube would be split perfectly in half as half of its atoms are suddenly and instantaneously - in respect to the orange half's frame of reference - accelerated to a given velocity.>> <<@aaronl19 says : May I direct people to the YouTube channel “Optozorax”, who is honestly kinda helping pioneer a new field of topology/theoretical physics of portals From just a few simple Axioms of how Portals should work, he (with help with his new community) has derived many properties. Such as how gravity is affected by portals>> <<@XanderGarff-x6d says : Its like the mo.ent from lost in oz, they put 2 portals ontop of each other and it trapped the person with in>> <<@11cookeaw14 says : 3:37 Where's the video that this is from?>> <<@CoinHeatMap-q5n says : Portals aren't fictional bro :(>> <<@Takerlako says : It saddens me that you have never mentioned the influence of gravity through the portals. If you take that into account then there is no paradox.>> <<@autismicme says : I wonder what would happen if you scaled one portal up, so whatever enters one portal comes out the other at a different size, even down to subatomic particles>> <<@LDP_87 says : My opinion For the first one I say A: Because the portal suddenly jolting is the same as if the cube went through the portal, meaning they both stay still For the second (assuming the portals are infinetly strong )one I say that the cube will stay intact with the portals over lapping, Because this way all the matter stayed>> <<@chase-2-2 says : The idea of the thing coming out of the portal pushing back on the portal is really interesting. It really depends on how you think about the portals. If the portal is a physical object it would absolutely be pushing back, which in turn would be applied to the surface the portal is on since portals can't float in mid air (if we go by portal portal standards) Personally i think you can't really push on the portal, the same way you can't push on a hole. The "portal" is just a whole. There's no inside and nothing to push against. If you were to push against the "sides" of the portal, aka the inner rim you'd actually be pushing against the surface the portal is on from the inside. Imagine it like having a wall with a hole drilled through it. You can't push on the hole itself and it you push from inside the hole against the sides, you are just pushing the wall. So in the case of the piston the 2 options are: A) The piston breaks B) The piston stops The piston can't move itself since the force pushing forward and the force pushing back are equal and cancel out.>> <<@Hiiii-p1x says : No, the piston actually pushes itself>> <<@DALEK_SUPREME_LEADER says : I wonder what the sandwiched portal game thingy would look like to another player scince everything should always be "outside" of the portal>> <<@TheInfiniteSheldon says : If you try to sandwich a Cube between two portals, the Cube's spatial geometry will collapse. Instant black hole.>> <<@stephenspackman5573 says : I'm baffled. Where's the “paradox”? You just describe some situations and talk through what would logically happen. It's like discussing the “paradox” of a cheese sandwich: “what would happen if I put cheese between slices of bread and then put it in my face”?>> <<@thepotato3305 says : My thought on the first paradox is that in order for the portal to stop half way it has to slow its momentum to 0 so the cube will move but not much and definitely not enough to tear>> <<@JdashEN1 says : What happen if the 1 portal was smaller than the second one?>> <<@Đ„Đ”Đșс4237 says : 2:09 it just gonna be squizzed by it self and become dust>> <<@jsbrads1 says : A piston won’t push two portals apart, they aren’t physically touching.>> <<@usandthem13 says : Btw, you can try this paradox in vanilla portal 1 in some part, don’t remember which exactly, but there is a part anyways
>> <<@Sinoceratops317 says : 1:08 I say A.>> <<@masteromeat says : This other youtuber, optozorax does portal geometry exclusively. His solution is that, for moving portals, momentum seems to apply to an object in the form of reletive momentum between the portals. In other words, the moving portal launcher would only launch the block for as long as the moving portal was moving, and then the portal stopped, the block would also stop. Double portal squisher would crush the block and extrude it out the edges>> <<@real_emeraldzs says : if the portal stops, the cube keeps moving, then if the cube stops, will the portal keep moving?>> <<@LabRatttt says : The way i think of it is like a doorframe but where each end is is different sides>> <<@he.got_itfr says : Holy unemployment>> <<@wvin1450 says : The portal would not give the object momentum, it is just a gate. If a portal "swallowed" a person they would just be deposited at the opposite portal location. The "movement speed" in the game when the moving portals hit the character is just a special coding for how the portals (the surface) works. These portals pull you in and move you through them so the screen doesnt graphics glitch.>> <<@mocabunn says : 0:36 This theory is not really clicking with me, as the cube is not in motion, the portal is. Imagine a doorframe speeding at 300m/s your way and you are stationary. Ergo cube wouldn't shoot out of the portal, the blue portal would have the same physical properties as a doorframe getting stuck to a wall.>> <<@woaq4486 says : I like how he reworded “portal gun” to “sci fi device” bc saying the word gun within the first 30 seconds of YouTube videos gets you instantly demonetized.>> <<@jeremy5602 says : I strongly disagree with objects transferring momentum to the portals solely by moving through them. They are supposed to have no depth, meaning if an object with a length of 1 meter enters the portal and stops halfway, then the object will measure at 0.5 meters on both sides of the portal with no missing length. It’s like a perfectly 2D window. If a moving portal goes halfway (Through? Onto? Over? Whatever, this is science not English) an object and stops, it must decelerate, even if that deceleration is instantaneous. That means the object coming out the other side would decelerate in exactly the same way the portal decelerates, stopping it halfway through the portal.>>
VideoPro
>>