Thread for basic non-CGOL questions

[1and0nlycordershippr]

Is there a rule (of any kind) with both a (4,3)c/10 and c/2 spaceship?

[pifricted]

Are there rules where diagonally-symmetric patterns explode, but orthogonally-symmetric patterns do not?

Here is a rule explode in all symmetries but D2_+1 and D2_+2:

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x = 6, y = 85, rule = B2ce3ey4ejw/S1e2e3e
2bo$bobo$obobo$bobobo$2bobo$3bo74$3bo$2bobo$bobobo$obobo$bobo$2bo!

Code: Select all

x = 6, y = 84, rule = B2ce3ey4ejw/S1e2e3e
2bo$bobo$obobo$bobobo$2bobo$3bo73$3bo$2bobo$bobobo$obobo$bobo$2bo!

But D4 symmetries explode. I don't know why.

[Rhombicubocta]

Do any rules have small explosive growth patterns that are so rare naturally that soups almost never explode?
Do 2D Replicators always mean a rule is explosive?
Are there any rules where replicators can burn as a fuse?

edit:
How are any symmetries in dry life searchable when even small asymmetric patterns can explode?

Code: Select all

x = 11, y = 11, rule = B37/S23
2$3b2o$3b2o4$3b2obo$3bo2bo$4b3o!

[NNlk05]

*snip*

Do any rules have small explosive growth patterns that are so rare naturally that soups almost never explode?

*snip*
Which boils down to:

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x = 5, y = 13, rule = B2ci3ac45n78/S02i3ak678
obo2$obo5$o2bo3$bo$3o$bo!

Do 2D Replicators always mean a rule is explosive?

Nearly always if the rep is small.

How are any symmetries in dry life searchable when even small asymmetric patterns can explode?

None, I think. A soup on a bounded grid is searchable, though.

[Rhombicubocta]

How are any symmetries in dry life searchable when even small asymmetric patterns can explode?

None, I think. A soup on a bounded grid is searchable, though.

How are there official censuses on catalog then?
Is it a mistake?
https://catagolue.hatsya.com/census/b37s23

[hotdogPi]

B37/S23 is mildly explosive. This means that for 16×16, which is quite small, it counts anything that doesn't explode, but the soups that do explode are ignored and take up a lot of processing time.

[hotcrystal0]

horsemen.png

Why are rules explosive under D2 symmetry relatively common anyways?

[NNlk05]

horsemen.png

Why are rules explosive under D2 symmetry relatively common anyways?

For all I know nobody figured it out yet.
I do know if you break the symmetry it stops being explosive.

[TheWayOfTheCon]

How did Bosco get its name, if its even known?

[hotcrystal0]

Not sure if this goes here, but how are demonoids using orthogonal spaceships as signals for single-channel usually constructed (both Life and engineered OCA)? I plan on constructing one for hc0_Univ (following the orthogonoid) but I still don’t really have a blueprint.

[NNlk05]

Not sure if this goes here, but how are demonoids using orthogonal spaceships as signals for single-channel usually constructed (both Life and engineered OCA)? I plan on constructing one for hc0_Univ (following the orthogonoid) but I still don’t really have a blueprint.

See this demononid puffer in Sticky.

[hotcrystal0]

See this demononid puffer in Sticky.

I still don’t get it, as it’s not an actual demonoid spaceship.

[NNlk05]

I still don’t get it, as it’s not an actual demonoid spaceship.

I think something like this will work, by moving in zigzags.

Code: Select all

x = 143, y = 117, rule = B/S012345678
116bo$116b4o$119b4o$123b2o6b8o$83b2o6b24o9bo5bo7b3o$82b2ob4o26b10o4bo
10bo$80b2o7b2o29b3o5bo12bo$79bo11bo7b2o19bo6bo13bo$78bo12bo6bo20b2o5b
2o14bo$78bo12bo5b9o20bo15bo$77bo14bo3b2o8b18o2bo15bo$76bo14bo5b2o27bo
15bo$76bo14bo6bo27bo15bo$76bo14bo34bo14bo$76b2o12b2o34bo14bo$77bo12bo
35bo14bo$78b2o9bo37bo12b2o$80b3o2b4o38b2o10b2o$83b2o44b3o6b2o$132b6o4$
59b4o$58b2o3bo$57bo6b2o$57bo8bo$56bo10bo$56bo10bo38b13o$56bo11bo35b2o
11b2o$55bo12b2o33bo13b2o$55bo13bo32bo13bo2bo$56bo11bo33bo13bo2bo$56bo
11bo32b2o13bo3bo$56bo11bo32bo14bo3bo$56bo11bo32bo13bo4b2o$57bo9bo46bo
6bo$58b2o7bo46bo7bo$42bo16b4ob3o2bo44bo7bo$42b2o19bo5bo43bo$43b2o24bo
43bo$45bo23bo43bo$46b2o21bo43bo$48b2o13bo5bo42bo$48b2o12b3o4bo41bo$45b
3o13b2ob2o3bo40bo$43b3o2b2o14bobo2bo39bo$41b2o5bo15bobo2bo36b3o$40b2o
5bo16bo4bo34b2o$39bo6bo17bo4bo31b3o$38bo7bo17bo4bo28b3o$37bo6b2o18bo4b
o26b2o$36bo7bo19bo4bo25bo$34b2o7bo19bo5bo14b11o$33bo8b2o19bo5bo$32bo8b
2o20bo5bo$31bo31bo5bo$30bo32bo5bo$29bo33bo5bo$28bo34bo5bo$27bo35bo5bo
$27bo35bo5bo$26bo36bo4bo$25bo37bo4bo3b2o$24bo38bo4bo3bo$23bo39bo4bo3b
o$22bo40bobo2bo2b2o$22bo40bob4o2bo$22bo40bo3b2o2bo$22bo40bo3b2o2bo$22b
o40bo4bobo$22bo45b3o$22bo$22bo35b8o$22bo33b2o7b2o$22bo33bo10bo$22bo32b
o12bo$22bo32bo13bo$22bo32bo14bo$22bo31bo15bo$22bo31bo15bo$22bo31bo15b
o$22bo31bo15bo$22bo31bo15bo$22bo31bo15bo$22bo32bo13b2o$22bo32b2o12bo$
22bo33b2o10b2o$22bo34b4o5b2o$61b5o8$40bo$40b4o$43b4o$47b2o6b8o$7b2o6b
24o9bo5bo7b3o$6b2ob4o26b10o4bo10bo$4b2o7b2o29b3o5bo12bo$3bo11bo7b2o19b
o6bo13bo$2bo12bo6bo20b2o5b2o14bo$2bo12bo5b9o20bo15bo$bo14bo3b2o8b18o2b
o15bo$o14bo5b2o27bo15bo$o14bo6bo27bo15bo$o14bo34bo14bo$2o12b2o34bo14b
o$bo12bo35bo14bo$2b2o9bo37bo12b2o$4b3o2b4o38b2o10b2o$7b2o44b3o6b2o$56b
6o!
[[ GRID THEME Inverse ]]

[Rhombicubocta]

are there spaceships/peroid 3 oscillator in B345678/S

It should be possible.

I can't find anything but p2 oscillators.
All patterns I have tried either die or become p2.
Are there any other periods know in B345678/S?
Is there someway to prove every pattern in this rule is p2?

[NNlk05]

*snip*

*snip*

*snip*

Are there any other periods know in B345678/S?

Not that I know of.

Is there someway to prove every pattern in this rule is p2?

I think LLS can do that.

[NNlk05]

I still don’t get it, as it’s not an actual demonoid spaceship.

Found the actual demonoid

Guys!
NEW SPEED: 64c/9896d

It now fits into normal LifeViewer without [[ MAXGRIDSIZE 14 ]] instruction!
In fact, the demonoid is easier than the orthogonoid!

Code: Select all

*demonoid*

-----
What's the difference between NW and N@ in HROT?

[Rhombicubocta]

Are rules like B1e/S123i where every pattern grows, but without quadratic growth apgsearchable?
There are wickstretchers.

Code: Select all

x = 2, y = 1, rule = B1e/S123i
2o!

There is also this 1D replicator that require wicks for support.

Code: Select all

x = 2, y = 5, rule = B1e/S123i
2o2$bo2$2o!

[PK22]

Are rules like B1e/S123i where every pattern grows, but without quadratic growth apgsearchable?
(...)

Is apgsearching possible? Yes. Is it practical or fast? Absolutely not:

Code: Select all

(...)
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
Chaotic-growth pattern detected: zz_LINEAR
b1es123i/C1: 85 soups completed (5.947 soups/second current, 5.947 overall).

(This was with 12 cores and it's still painfully slow, plus you'd need 10k soups to upload to Catagolue).

[NNlk05]

One property of 3/4 Life is that the birth and survival conditions are the same, so the current state of a cell does not affect the new state of the same cell one tick later.

Can someone explain this better? I am confused.

[yyh_baboon]

One property of 3/4 Life is that the birth and survival conditions are the same, so the current state of a cell does not affect the new state of the same cell one tick later.

Can someone explain this better? I am confused.

It means that if a cell has 3/4 live neighbours it will be alive the next gen regardless of its current state.

[1and0nlycordershippr]

Is there a rule which two spaceships, one orthogonal, one diagonal, both of them having the same speed, can be made into a shuttle where the diagonal SS is reflected by the orthogonal SS and back?

[pifricted]

Is there a rule which two spaceships, one orthogonal, one diagonal, both of them having the same speed, can be made into a shuttle where the diagonal SS is reflected by the orthogonal SS and back?

https://conwaylife.com/forums/viewtopic ... 93#p159293 have both orthogonal and diagonal examples.

[1and0nlycordershippr]

Is there a rule which two spaceships, one orthogonal, one diagonal, both of them having the same speed, can be made into a shuttle where the diagonal SS is reflected by the orthogonal SS and back?

https://conwaylife.com/forums/viewtopic ... 93#p159293 have both orthogonal and diagonal examples.

I mean a bouncer like that but made from separate spaceships.

[Katrina]

Are spaceships possible in either of these rules?

MAPAj8PAX6IQhRIiAYFSgEnFAiJFQVQCKCEdhBixcgA5RQBlgwBCBTgECaQwEGIDSEUyJmWAchIQaTkWKJQAwgiJA
MAPAj8PAX6IQhRIiAYFSgEnFAiJFSVQCKCEdhBixcgA5RQBngwBCBTgECaQwEGIDSEUyJmWAchIQaTkWKJQAwgiJA

Yes.

Code: Select all

x = 8, y = 9, rule = MAPAj8PAX6IQhRIiAYFSgEnFAiJFQVQCKCEdhBixcgA5RQBlgwBCBTgECaQwEGIDSEUyJmWAchIQaTkWKJQAwgiJA
6bo$4bo$4b2o$3bo2bo$6b2o$b2o2bobo$4b2o$o4bo$bobo!

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x = 25, y = 9, rule = MAPAj8PAX6IQhRIiAYFSgEnFAiJFSVQCKCEdhBixcgA5RQBngwBCBTgECaQwEGIDSEUyJmWAchIQaTkWKJQAwgiJA
2bo2bo2bo6bo$o2bo2bo4bo3bob2o5bo$3bobob2obobo2b2o2bo4bo$bo3bo2b2o5bo2b
o5bo$8bo2b4o4bo$o5bo6b2o4b2o3bo$2bo20bo$12bo7bo3bo$18bo3bo!

[actinophrys]

B368/S245 gets called Morley for the investigations Stephen Morley did on it. Is there any surviving record of what he actually discovered beyond the few patterns in Golly? The page safalra.com is referenced in a couple places but gives a 410 Gone error, and is excluded from the archive.org wayback machine, so it would depend on some being saved somewhere else.