Timeline for Naming parallel universes
Current License: CC BY-SA 4.0
21 events
| when toggle format | what | by | license | comment | |
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| Feb 25, 2020 at 17:42 | comment | added | Justin Thyme the Second | @Gilad M It is not a binary flip of the coin. If there are 16 Earths, and then a clone occurs, there are 32 Earths, ALL of which need to be determined as to which one is renamed or not. All 32 need to decide among them who gets what particular name. Even if you simply add a '0' or '1' to all existing 16 names, and not give each one a distinct name, then 16 decisions have to be made between 32 new Earths as to who keeps the old name and who keeps the new name. One Earth can not make the decision for all of the other earths, just because that was the earth where the cloning occurred. | |
| Feb 24, 2020 at 23:32 | comment | added | Ventifacts and Yardangs | Yeah, this is literally just binary, but you used the freedom of treating spaces different from leading 0s to remove 1 digit. It's a 3-digit representation of 16 numbers as opposed to 4-digit. The regular binary way is more natural to me IMO, but my point is that this isn't drastically different or more efficient or anything. And it involves just as many name changes and just as much locality as regular binary where you just don't say the leading 0s. | |
| Feb 24, 2020 at 23:20 | comment | added | Halfthawed | @GiladM The technique to do so has been added to my answer. | |
| Feb 24, 2020 at 23:19 | history | edited | Halfthawed | CC BY-SA 4.0 |
added 285 characters in body
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| Feb 24, 2020 at 22:30 | comment | added | Ventifacts and Yardangs | There's no way to do it that way while maintaining locality and keeping the names mostly intact. For instance, if you have a world 1 and a world 01, and both are on the losing side of the coin flip and have to change names, how do you give them unique names? You can't make them both 001, and you also can't add a 0 to both of them, because the new 01 will have the same name as the previous 01 that didn't change names. So you've gotta start adding in 1's in front of some of these. How do you do that in a local way without just reproducing binary? | |
| Feb 24, 2020 at 22:26 | comment | added | Halfthawed | @GiladM No, not at all. It's not a binary scheme with missing zeros - 1, 01, and 001, while all being the same value, are entirely separate Earths according to these rules. Thus, converting to Hex is counterproductive. | |
| Feb 24, 2020 at 22:20 | comment | added | Ventifacts and Yardangs | Yep, after thinking this through more carefully, I realized this is the same as my previous binary name scheme, just with the added digit up front and the leading 0s ignored. It's a bit more convenient, since when a portal opens, you have a 50% chance of not needing to change your world's name. But it's basically the same system. And I agree with Justin - as a practical matter, this should be converted to hex for readability. | |
| Feb 24, 2020 at 22:08 | comment | added | Halfthawed | @JustinThymetheSecond No, it's still binary. Treat the spawned world as a set. In other words, every time a portal is created, an equal number of worlds to the current number of worlds existing are created. And the currently existing worlds have a system for naming them. Thus, there are two identical sets of worlds, with one system in place already for naming half of them. Binary decision. | |
| Feb 24, 2020 at 22:06 | comment | added | Justin Thyme the Second | @Halfthawed If there are now four new spawned worlds, it is a four-way decision. Flipping a coin is a binary decision. | |
| Feb 24, 2020 at 22:03 | comment | added | Halfthawed | @JustinThymetheSecond Flip a coin every time a split happens. Flip one coin and which side call it correctly gets to be the originals. And, as previously established in these comments, the sides play rock-paper-scissors to figure out which side gets to flip the coin. | |
| Feb 24, 2020 at 22:02 | comment | added | Justin Thyme the Second | Flipping a coin does not work. After the first split, there are two copies. After another split, there are four copies. One gets to keep the original name, but the other three have to be changed. Then, there are 16 copies. So who keeps the original, original name? There is only one copy with the original original name. In other words, it is a four-way or a 16-way decision. | |
| Feb 24, 2020 at 21:56 | comment | added | Justin Thyme the Second | Do you know why the came up with Hex? Just try reciting the designation '110100111001111010111000101011101010001011101010101010001110101010101001' over the phone. "I got lost, What number comes after the '011'? | |
| Feb 24, 2020 at 18:57 | comment | added | Matthew | @KeithMorrison, they both flip a coin, and continue to both flip a coin until they come up different, at which point they can both follow the same naming rule and generate different names. The coin can be replaced with any random number generator. (Or, as Halfthawed observes, they can play RPS. At that point, you don't need a coin; you can assign the name based on who won and who lost.) | |
| Feb 24, 2020 at 18:54 | comment | added | Ventifacts and Yardangs | @Halfthawed Hahaha. Yeah, but anyway, I upvoted this and like it in general. I'm trying to figure out if it has locality issues. What worlds could be connected to 101? Since the names have no indication of which universes the portals are in, the structure is somewhat unclear. 101 might be connected to 8-101, or it might not (because the 8th portal could connect Earth Prime to 00000000 for instance). In the latter case, not only are 101 and 8-101 not connected, they're maximally disconnected. Meanwhile, 100, 111, or 011 are also maybe, but not definitely, connected. | |
| Feb 24, 2020 at 18:47 | comment | added | Halfthawed | @KeithMorrison They can play rock-paper-scissors to figure out who gets the privilege of flipping the coin. | |
| Feb 24, 2020 at 18:47 | comment | added | Halfthawed | @GiladM Well, it's only a problem if you're the duplicate, so I guess the trick is to just not be the duplicate. On a serious note, there is no naming convention that will get around the fact that, yes, you'll be changing names very, very frequently. | |
| Feb 24, 2020 at 18:41 | comment | added | Ventifacts and Yardangs | Flipping a coin works to tell the difference, but it doesn't solve the problem of sudden, drastic name changes. You used to live in Earth 101. Now the 8th portal opened and you flipped tails, so now the one on the other side of the portal gets to stay Earth 101 and you're now Earth 00000101. Admittedly, though, just adding zeroes to the start is pretty tame as far as name changes go. Maybe a shorthand like 8-101 for "the 8-digit number with leading zeroes, then 101"? | |
| Feb 24, 2020 at 18:39 | comment | added | Keith Morrison | And who flips the coin? | |
| Feb 24, 2020 at 18:36 | comment | added | Halfthawed | @KeithMorrison Flip a coin. No, honestly, flip a coin. If you can't tell any other way, than it doesn't matter which is which, and you just need to decide one for the naming scheme to work. So flip a coin. | |
| Feb 24, 2020 at 18:34 | comment | added | Keith Morrison | How do you know what Earth you are? If everything is exactly duplicated, why do you assume you're Earth Null rather than Earth Prime? | |
| Feb 24, 2020 at 18:26 | history | answered | Halfthawed | CC BY-SA 4.0 |