Timeline for Parallel universe portals: an infinite hall of mirrors?
Current License: CC BY-SA 4.0
32 events
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| Oct 11, 2019 at 21:59 | comment | added | Hypnosifl | If you want to avoid infinite universes from multiple portals, you could take a cue from advocates of the many-worlds interpretation of quantum mechanics who argue that the splitting happens in a localized way, so for example 1 second after a quantum event with multiple outcomes (or a portal opening), everything within a radius of 1 light-second has split, but systems outside the future light cone have not split. You'd still get an ever-increasing number of parallel worlds from 2 portals, but the number would remain finite. | |
| Oct 10, 2019 at 19:45 | answer | added | Demigan | timeline score: 1 | |
| Oct 10, 2019 at 16:59 | comment | added | Demigan | God damnit you nerdsniped me | |
| Oct 10, 2019 at 16:19 | answer | added | Ej Sizemore | timeline score: 0 | |
| S Aug 20, 2019 at 13:31 | history | bounty ended | Ventifacts and Yardangs | ||
| S Aug 20, 2019 at 13:31 | history | notice removed | Ventifacts and Yardangs | ||
| Aug 20, 2019 at 13:31 | vote | accept | Ventifacts and Yardangs | ||
| Aug 20, 2019 at 13:31 | |||||
| Aug 17, 2019 at 23:05 | comment | added | Ventifacts and Yardangs | There's no way to know, not until the portals desync that is. Then eventually you and your parallel self will make different decisions (due to quantum differences in the electrons in your brains) and the effect will become clear. | |
| Aug 17, 2019 at 21:27 | comment | added | Tom O'Daighre | So, if the universes are exact duplicates, surely there is an exact duplicate of you in the other universe? So when you enter your portal from the south side, at the same time, your duplicate enters their portal from their south side, and comes out of your portal from its north side. So, from an outside perspective, it looks exactly like you've just walked through a completely inert empty doorway? How is anyone, including you, supposed to know that anything other than that is what's happened? | |
| Aug 17, 2019 at 8:11 | answer | added | anonymous | timeline score: 2 | |
| Aug 17, 2019 at 3:57 | answer | added | Alex B | timeline score: 0 | |
| Aug 16, 2019 at 16:11 | comment | added | Ventifacts and Yardangs | Any time a portal opens, at that moment, the universe on one side is the same as the universe on the other (other than a tiny quantum difference). So if the first portal is open, then it will also be open in the parallel universe created by the second portal. | |
| Aug 16, 2019 at 13:48 | comment | added | ksbes | There is a thing I want to clarify. We have opened portal A , in besline universe 0. Then we open portal B in same basline univers 0. Does portal Ab (copy of portal A) is opened in universe B? | |
| Aug 14, 2019 at 23:24 | comment | added | Ventifacts and Yardangs | @Muuski Yes, from the start, there's a quantum-scale difference between the universes. But as time goes on, the perturbation will grow larger exponentially as it affects other nearby particles. Even once the effect is spread out over meters, though, the actual differences are still microscopic. The only changes I expect them to cause are tiny thermal differences between the brains and muscles of the people on either side of the portal, and the cooling processes that activate the portals. That could be enough to cause one portal to activate a few fractions of a second before the other. | |
| Aug 14, 2019 at 23:02 | comment | added | Muuski | Wouldn't desync happen as soon as a quantum effect occurs? That is to say, immediately... | |
| Aug 14, 2019 at 21:32 | answer | added | Nosajimiki | timeline score: 5 | |
| S Aug 14, 2019 at 15:26 | history | bounty started | Ventifacts and Yardangs | ||
| S Aug 14, 2019 at 15:26 | history | notice added | Ventifacts and Yardangs | Improve details | |
| Aug 6, 2019 at 12:41 | comment | added | Ventifacts and Yardangs | @xpy While it's true that a portal can't be desynced from its copy in the universe it creates, copies of that portal due to other portals can still be desynced from each other. If you activate portal A, and you create 2 copies of an inactive portal B, there is no reason to say that, when activated, the B portals will lead to each other. I mean, you could set up a set of rules for the portals where that happens (I discuss that in my response to Penguino's answer), but that's not what I've done here. | |
| Aug 6, 2019 at 11:14 | comment | added | xpy | @GiladM I think it is very relevant if you think that the metal would be the only thing that would exist only once in both universes. Which would mean that you have the copy of everything except the metal that would exist in both universes at the exact same place, which also mean that the metal can not be de-synced, which leads to that whenever you open a new portal it will open in both universes simultaneously which means that no additional universes will be created, just one more portal between the two universes. | |
| Aug 6, 2019 at 10:44 | comment | added | Ventifacts and Yardangs | @xpy Yes, the portal will float in the air. This only becomes an issue after the desync, since the table is there (or not) on both sides at the moment of activation. But again, not super relevant here. | |
| Aug 6, 2019 at 10:44 | comment | added | Ventifacts and Yardangs | @Shadowzee I'd appreciate a bit more than "I believe it could be calculated." You don't need to do the calculation, but I'm trying to figure out which mechanism causes the chain to end. How do space and time differences between the portals lead to a large desync at some chain length? As for portals closing, the parallel world would become inaccessible. Whether it still exists is impossible to verify because communication between those 2 specific worlds can never be reestablished. Not really relevant to this question, though. | |
| Aug 6, 2019 at 8:40 | comment | added | xpy | In what way do then portals/metal interact with both universes at the same time? e.g. if you place the portal on a table that doesn't exist in both universes, will the portal float in the other? | |
| Aug 5, 2019 at 10:59 | history | edited | Ventifacts and Yardangs | CC BY-SA 4.0 |
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| Aug 5, 2019 at 10:46 | history | edited | Ventifacts and Yardangs | CC BY-SA 4.0 |
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| Aug 5, 2019 at 4:41 | comment | added | Cort Ammon | Its not quite what you are looking for, but you may be interested in free groups. They have a structure which might apply, if you wanted it to. | |
| Aug 5, 2019 at 3:23 | answer | added | Penguino | timeline score: 4 | |
| Aug 5, 2019 at 1:48 | comment | added | Hypnosifl | ...maybe that doesn't work though, because when my duplicate in B looks through his own red portal, he can't see both universe A and universe C if they have desynced, it can only be one or the other, thus the red portals in A and C can't both be connected to the same B eternally. So on second thought, I agree with you about the hall of mirrors effect. | |
| Aug 5, 2019 at 1:41 | answer | added | Corbin Matheson | timeline score: 0 | |
| Aug 5, 2019 at 1:39 | comment | added | Hypnosifl | Say I create a red portal, and then after the desync we agree my universe will be labeled A, and my double's universe on the other side of the red portal will be called B. Now I create a blue portal in my universe A, which at the moment of creation should lead to a universe C where my duplicate also has a red portal which leads to a universe which is at least just like B at that moment. But is it possible the red portal in universe C is actually permanently connected to universe B, instead of being connected to a universe that starts like B but desyncs? That could avoid infinite duplication. | |
| Aug 4, 2019 at 23:50 | comment | added | Shadowzee | Infinite is a concept. A number without limit or something so large its uncountable. Unfortunately, I believe the number of Portals your characters could created could be calculated. There are several limiting factors here. Portals can only occupy a certain space. Portals create parallel words which means you have an original world. Portals desync and we assume they stop duplicating past desync. The biggest question is, what happens when a portal closes. Does the parallel world completely disappear? or does it live on by itself, forever unlinked? I'll leave the maths to someone else... | |
| Aug 4, 2019 at 23:15 | history | asked | Ventifacts and Yardangs | CC BY-SA 4.0 |