Search found 7283 matches

by dvgrn
Today, 8:04 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

Is there a Herschel conduit that outputs the xp0_16o4 Herschel parent? Does xp0_16o4 have a known glider synthesis? I don't know of any conduits that produce much of anything besides 4bo$5b2o$obobo$obo! The only exception I can remember is the Fx158, which produces just 2bo$3b2o$obo$o! instead. x =...
by dvgrn
Today, 7:52 am
Forum: General Discussion
Topic: Ask the Game of Life Guru one question!
Replies: 8
Views: 116

Re: Ask the Game of Life Guru one question!

I don't think so. [chain of eater5s] That doesn't work too well. If we were concerned only about gliders coming from one direction (NW or SE), this would have a safety rating of 1/2. But gliders from the NE or SW destroy things 17/18ths of the time, which brings the total asymptotic rating down far...
by dvgrn
Yesterday, 7:47 pm
Forum: General Discussion
Topic: Ask the Game of Life Guru one question!
Replies: 8
Views: 116

Re: Ask the Game of Life Guru one question!

I'd take the Yedidia-Aaronson Turing machine (which halts if and only if a certain extension of ZFC is inconsistent), convert it to a GoL pattern, and ask 'is this an infinite-growth pattern'? https://www.scottaaronson.com/busybeaver.pdf Well, that might be a nice thing to know, but it's not very p...
by dvgrn
Yesterday, 7:07 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

I've never seen that occur naturally. Can you provide an example? Not that one in particular, but I've seen the related predecessor (where the bookend itself has an open hinge) occur occasionally. Looks like mniemiec's variant is just common enough that a natural result shows up in the octohash dat...
by dvgrn
June 17th, 2021, 12:45 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

Why is the canonical version of the century this: x = 4, y = 4, rule = B3/S23 b3o$3bo$ob2o$2o! and not the bookend or the normal B-hept-minus-one cell predecessor? I think that I was the one who picked that form for the Elementary Conduits Collection, and I'm not sure if I had any particularly good...
by dvgrn
June 17th, 2021, 9:26 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2300
Views: 1188669

Re: Thread for your unsure discoveries

There is this: https://conwaylife.com/forums/viewtopic.php?f=2&t=1849&p=101222#p101243 That's a good H-to-LOM, but it doesn't seem to be compatible with this new incomplete LOM-to-maybe-X. It might make sense to focus on finding a lot more direct H-to-LOM options before bothering to worry about wha...
by dvgrn
June 17th, 2021, 9:07 am
Forum: Patterns
Topic: Structures resistant to attack
Replies: 8
Views: 315

Re: Structures resistant to attack

Other rules have quadratic replicators that replicate fast enough that copies just go around whatever is in their way. Is that any more likely? Definitely maybe not, I'd say, but I don't know what I'm talking about... and I don't think anyone else does either, as far as a "more likely" judgment goe...
by dvgrn
June 17th, 2021, 7:47 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2300
Views: 1188669

Re: Thread for your unsure discoveries

Does LOM get used in any conduits? While this isn't a complete conduit, the active region goes very far. The block gets destroyed in generation 191, giving a lot of time to do something with it. x = 14, y = 10, rule = B3/S23 7b2o$6bobo$7bo4$2o7b3o$2o7bo2b2o$9b2o2bo$11b3o! Nothing much yet. This mig...
by dvgrn
June 17th, 2021, 7:24 am
Forum: Patterns
Topic: Structures resistant to attack
Replies: 8
Views: 315

Re: Structures resistant to attack

What do you mean with the computer thing? Of course we can compile Spore or something to a Turing machine and run that, but in the same spirit we can just do anything we want so that's not really that significant. Yeah, that's pretty much what I mean. You're really right that we "can't have life in...
by dvgrn
June 16th, 2021, 9:52 pm
Forum: Patterns
Topic: Structures resistant to attack
Replies: 8
Views: 315

Re: Structures resistant to attack

Hey! Sorry it took such a long time to reply! Thanks for the interesting links! It seems like there is so much stuff to read about, the forums and wiki have a high branching factor :). It's a bit disappointing that it's probably not possible, we'll never have actual life in GoL then! It seems like ...
by dvgrn
June 14th, 2021, 6:52 pm
Forum: Website Discussion
Topic: LifeWiki Trusted Account Request Thread - Post requests here
Replies: 487
Views: 201281

Re: LifeWiki Trusted Account Request Thread - Post requests here

Loadmaster wrote:
June 14th, 2021, 6:48 pm
I just joined today, so I'm requesting Trusted Account status.
Done!
by dvgrn
June 14th, 2021, 5:35 pm
Forum: Patterns
Topic: Gun Discussion Thread
Replies: 298
Views: 111536

Re: Gun Discussion Thread

p67 x = 27, y = 40, rule = B3/S23 7bo$7b3o$3o7bo$o8b2o10b2o$bo19bo$19bobo$19b2o5$10b2o$7b2o2bo$5bob2o3b 4o$3bob2o3bo3b2obo$5bob2o3bo3b2o$7b4o3b2obo$11bo2b2o$11b2o3$14b2o$11b 2o2bo$9bob2o3b4o$9b2o3bo3b2obo$9bob2o3bo3b2obo$11b4o3b2obo$15bo2b2o$ 15b2o5$6b2o$5bobo$5bo19bo$4b2o10b2o8bo$16bo7b3o$17b3o$19...
by dvgrn
June 14th, 2021, 2:13 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1941
Views: 830206

Re: Oscillator Discussion Thread

More partials: p79, good fallback, bad period... I don't think anything above 78 (or special-case 74) is really a "bad period". Sphenocorona's H-to-domino can supply those sparks in a true-period way. Unfortunately Sphenocorona's H-to-domino doesn't work in this context: x = 228, y = 109, rule = Li...
by dvgrn
June 13th, 2021, 8:51 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

Is there a program that generates random INT rules? For some definitions of "random", yes . You may not find that a 50% chance of each isotropic bit being ON tends to give very interesting rules, unless you really like chaotic explosions. It's easy to change the random weightings in the script if y...
by dvgrn
June 12th, 2021, 4:06 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2300
Views: 1188669

Re: Thread for your unsure discoveries

Does this have any value? Well... definitely! But it's not new. It's an H-to-R converter that's been known for about a quarter of a century now -- part of the L156 Herschel conduit: x = 57, y = 89, rule = LifeHistory 11.D6.D2.5D2.3D10.D$11.D5.2D2.D5.D12.2D$11.D6.D2.D5.D13.D3.4D$11.D6.D 3.3D2.4D10.D...
by dvgrn
June 12th, 2021, 12:12 pm
Forum: Patterns
Topic: Structures resistant to attack
Replies: 8
Views: 315

Re: Structures resistant to attack

I was wondering if there are any (non-trivial) structures that are resistant to attack from the outside. What I mean by this is a structure that stays stable around the origin no matter what the cells outside of the bounding box start out as. For example there could be a bunch of glider guns aimed ...
by dvgrn
June 12th, 2021, 9:17 am
Forum: Patterns
Topic: Gun Discussion Thread
Replies: 298
Views: 111536

Re: Gun Discussion Thread

While the p486 and p576 oscillators don't set the bounding box record for glider guns (as far as I know), maybe they do for XWSS guns since they can be made multibarrel with reflected gliders? Probably not (if I'm understanding the suggestion correctly). Here are the current smallest p486 and p576 ...
by dvgrn
June 11th, 2021, 11:26 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

I realized something: If we double the "wicks" on themselves, the left one is still a single object but the right one is now two objects! To clarify: you know that the right one is two objects, but there isn't necessarily an existing object census algorithm that can reliably separate a "pseudo-wick...
by dvgrn
June 11th, 2021, 10:58 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

I don't care about wick/wave identification. To be specific, as far as I'm concerned: This is a wick... This is a wick... This is not a wick... This is a wick.. This is not a wick... This is a wick... So far this is doing a wonderful job of proving my contention that the correct algorithm to run he...
by dvgrn
June 10th, 2021, 10:16 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

Yes, keep everything else, removing moving waves too. The soups would be the board on lifecompetes.com. And I sometimes intentionally create wicks and waves on the lifecompetes server so I know they need to be handled. Sometimes, the entire board consists of nothing but agar-that also needs to be h...
by dvgrn
June 10th, 2021, 9:57 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

How would I automatically detect and remove wicks from a 50-by-100 torus? ... "and remove" means you want to keep whatever else is in the 50-by-100 torus that is not a wick? Are you only worried about stationary wicks, or are moving waves also worth worrying about? ... In other words, do you want t...
by dvgrn
June 10th, 2021, 6:38 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2821
Views: 813486

Re: Thread for basic questions

What exactly is the textbook that Nathaniel Johnston is writing? What will be in it? When will it be published? Here's what the table of contents looks like at the moment: Preface . . . . . . . . . . . . . . . . . . . . . . . . . . xi The Goal . . . . . . . . . . . . . . . . . . . . xi Intended Aud...
by dvgrn
June 9th, 2021, 12:13 pm
Forum: Patterns
Topic: Crawlers
Replies: 46
Views: 15802

Re: Crawlers

this looks somewhat promising x = 68, y = 112, rule = B3/S23 2bo$obo$b2o29$66b2o$66b2o17$21bobo$22b2o$22bo8$66b2o$66b2o27$66b2o$66b 2o9$43bo$44bo$42b3o10$58bo$57b3o$57bo! That's an interesting one, for sure -- an orthogonal 28c/83 R-pentomino crawler! Produces two gliders for every input glider. I ...
by dvgrn
June 8th, 2021, 1:13 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2300
Views: 1188669

Re: Thread for your unsure discoveries

4 glider synthesis of U-turner... synthesise-patt.py knows about 22 three-glider collisions that produce the b3o$b3o$obo$2o! object (or something with the same population sequence that converges to it within a few ticks): x = 1587, y = 20, rule = B3/S23 8bo70bo74bo70bo75bo77bo70bobo73bo78bo77bo74bo...
by dvgrn
June 8th, 2021, 6:12 am
Forum: General Discussion
Topic: Collagol
Replies: 11
Views: 4450

Re: Collagol

GUYTU6J wrote:
June 7th, 2021, 11:53 pm
Sorry to bump the thread, but the site has been down for me currently. Can anyone retrieve it?
I remember having put one of my repeat waves inside the universe back in 2019 though.
I hadn't tried to visit the site for a while, but it's down for me as of this morning.