## I have constructed a lightspeed spaceship in B3/S23!

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

### I have constructed a lightspeed spaceship in B3/S23!

Golly, it turns out that lightspeed spaceships are actually possible after all!

Until recently, it seemed impossible. People haven't attempted to make a ship like this because it didn't seem to fit into mathematics. I don't think we realized that this is CGoL we're talking about, so I worked and worked for the past year and a half to combine wave reactions and lightspeed bubble rakes.

Like most ships, it's very big, however I was able to reduce its size significantly down to what can fit inside a codebox!

Legibility of RLE is questionable at times, but please believe me!

It consists of a lightspeed wave puffer puffing tubs, being stabilized at the ends by gliders, and said gliders are fed back into the lightspeed rake by an external device.

But I had a fun time making it.

x = 10207, y = 10085, rule = B3/S23
2b3ob3ob3ob3obo75b3ob3ob3ob3obo29b3ob3ob3ob3obo6b3ob3ob3ob3obo$2bobobo bobobo2bo2bo75bobobobobobo2bo2bo29bobobobobobo2bo2bo6bobobobobobo2bo2b o$2b3ob3ob2o3bo2bo75b3ob3ob2o3bo2bo29b3ob3ob2o3bo2bo6b3ob3ob2o3bo2bo$2bobobo3bobo2bo2bo75bobobo3bobo2bo2bo29bobobo3bobo2bo2bo6bobobo3bobo2b o2bo$2bobobo3bobob3ob3o73bobobo3bobob3ob3o27bobobo3bobob3ob3o4bobobo3b
obob3ob3o2$2b3ob3ob3obo3b3o73b3ob3ob3obo3b3o27b3ob3ob3obo3b3o4b3ob3ob 3obo3b3o$2bo3bobobobobo3bo75bo3bobobobobo3bo29bo3bobobobobo3bo6bo3bobo
bobobo3bo$2b2o2bobobobobo3b3o73b2o2bobobobobo3b3o27b2o2bobobobobo3b3o 4b2o2bobobobobo3b3o$2bo3bobobobobo5bo73bo3bobobobobo5bo27bo3bobobobobo
5bo4bo3bobobobobo5bo$2bo3b3ob3ob3ob3o73bo3b3ob3ob3ob3o27bo3b3ob3ob3ob 3o4bo3b3ob3ob3ob3o2$3ob3ob3ob3obobobobo69b3ob3ob3ob3obobobobo23b3ob3ob
3ob3obobobob4ob3ob3ob3obobobobo$o4bo3bo2bobobobobobo69bo4bo3bo2bobobob obobo23bo4bo3bo2bobobobobob2o4bo3bo2bobobobobobo$3o2bo3bo2bobob2o2b3o
69b3o2bo3bo2bobob2o2b3o23b3o2bo3bo2bobob2o2b6o2bo3bo2bobob2o2b3o$2bo2b o3bo2bobobobo2bo72bo2bo3bo2bobobobo2bo26bo2bo3bo2bobobobo2bo3bo2bo3bo 2bobobobo2bo$3o2bo2b3obobobobo2bo70b3o2bo2b3obobobobo2bo24b3o2bo2b3obo
bobobo2bob3o2bo2b3obobobobo2bo$25b3ob3ob3ob3obo29b3ob3ob3ob3obo52b3ob 3ob3ob3obo29b3ob3ob3ob3obo$25bobobobobobo2bo2bo29bobobobobobo2bo2bo52b
obobobobobo2bo2bo29bobobobobobo2bo2bo$25b3ob3ob2o3bo2bo29b3ob3ob2o3bo 2bo52b3ob3ob2o3bo2bo29b3ob3ob2o3bo2bo$25bobobo3bobo2bo2bo29bobobo3bobo
2bo2bo52bobobo3bobo2bo2bo29bobobo3bobo2bo2bo$25bobobo3bobob3ob3o27bobo bo3bobob3ob3o50bobobo3bobob3ob3o27bobobo3bobob3ob3o2$25b3ob3ob3obo3b3o
27b3ob3ob3obo3b3o50b3ob3ob3obo3b3o27b3ob3ob3obo3b3o$25bo3bobobobobo3bo 29bo3bobobobobo3bo52bo3bobobobobo3bo29bo3bobobobobo3bo$25b2o2bobobobob
o3b3o27b2o2bobobobobo3b3o50b2o2bobobobobo3b3o27b2o2bobobobobo3b3o$25bo 3bobobobobo5bo27bo3bobobobobo5bo50bo3bobobobobo5bo27bo3bobobobobo5bo$
25bo3b3ob3ob3ob3o27bo3b3ob3ob3ob3o50bo3b3ob3ob3ob3o27bo3b3ob3ob3ob3o2$23b3ob3ob3ob3obobobobo23b3ob3ob3ob3obobobobo46b3ob3ob3ob3obobobobo23b 3ob3ob3ob3obobobobo$23bo4bo3bo2bobobobobobo23bo4bo3bo2bobobobobobo46bo
4bo3bo2bobobobobobo23bo4bo3bo2bobobobobobo$23b3o2bo3bo2bobob2o2b3o23b 3o2bo3bo2bobob2o2b3o46b3o2bo3bo2bobob2o2b3o23b3o2bo3bo2bobob2o2b3o$25b
o2bo3bo2bobobobo2bo26bo2bo3bo2bobobobo2bo49bo2bo3bo2bobobobo2bo26bo2bo
3bo2bobobobo2bo$23b3o2bo2b3obobobobo2bo24b3o2bo2b3obobobobo2bo47b3o2bo 2b3obobobobo2bo24b3o2bo2b3obobobobo2bo$48b3ob3ob3ob3obo75b3ob3ob3ob3ob
o29b3ob3ob3ob3obo$48bobobobobobo2bo2bo75bobobobobobo2bo2bo29bobobobobo bo2bo2bo$48b3ob3ob2o3bo2bo75b3ob3ob2o3bo2bo29b3ob3ob2o3bo2bo$48bobobo 3bobo2bo2bo75bobobo3bobo2bo2bo29bobobo3bobo2bo2bo$48bobobo3bobob3ob3o
73bobobo3bobob3ob3o27bobobo3bobob3ob3o2$48b3ob3ob3obo3b3o73b3ob3ob3obo 3b3o27b3ob3ob3obo3b3o$48bo3bobobobobo3bo75bo3bobobobobo3bo29bo3bobobob
obo3bo$48b2o2bobobobobo3b3o73b2o2bobobobobo3b3o27b2o2bobobobobo3b3o$
48bo3bobobobobo5bo73bo3bobobobobo5bo27bo3bobobobobo5bo$48bo3b3ob3ob3ob 3o73bo3b3ob3ob3ob3o27bo3b3ob3ob3ob3o2$46b3ob3ob3ob3obobobobo69b3ob3ob
3ob3obobobobo23b3ob3ob3ob3obobobobo$46bo4bo3bo2bobobobobobo69bo4bo3bo 2bobobobobobo23bo4bo3bo2bobobobobobo$46b3o2bo3bo2bobob2o2b3o69b3o2bo3b
o2bobob2o2b3o23b3o2bo3bo2bobob2o2b3o$48bo2bo3bo2bobobobo2bo72bo2bo3bo 2bobobobo2bo26bo2bo3bo2bobobobo2bo$46b3o2bo2b3obobobobo2bo70b3o2bo2b3o
bobobobo2bo24b3o2bo2b3obobobobo2bo$25b3ob3ob3ob3obo29b3ob3ob3ob3obo52b 3ob3ob3ob3obo29b3ob3ob3ob3obo$25bobobobobobo2bo2bo29bobobobobobo2bo2bo
52bobobobobobo2bo2bo29bobobobobobo2bo2bo$25b3ob3ob2o3bo2bo29b3ob3ob2o 3bo2bo52b3ob3ob2o3bo2bo29b3ob3ob2o3bo2bo$25bobobo3bobo2bo2bo29bobobo3b
obo2bo2bo52bobobo3bobo2bo2bo29bobobo3bobo2bo2bo$25bobobo3bobob3ob3o27b obobo3bobob3ob3o50bobobo3bobob3ob3o27bobobo3bobob3ob3o2$25b3ob3ob3obo
3b3o27b3ob3ob3obo3b3o50b3ob3ob3obo3b3o27b3ob3ob3obo3b3o$25bo3bobobobob o3bo29bo3bobobobobo3bo52bo3bobobobobo3bo29bo3bobobobobo3bo$25b2o2bobob
obobo3b3o27b2o2bobobobobo3b3o50b2o2bobobobobo3b3o27b2o2bobobobobo3b3o$25bo3bobobobobo5bo27bo3bobobobobo5bo50bo3bobobobobo5bo27bo3bobobobobo 5bo$25bo3b3ob3ob3ob3o27bo3b3ob3ob3ob3o50bo3b3ob3ob3ob3o27bo3b3ob3ob3ob
3o2$23b3ob3ob3ob3obobobobo23b3ob3ob3ob3obobobobo46b3ob3ob3ob3obobobobo 23b3ob3ob3ob3obobobobo$23bo4bo3bo2bobobobobobo23bo4bo3bo2bobobobobobo
46bo4bo3bo2bobobobobobo23bo4bo3bo2bobobobobobo$23b3o2bo3bo2bobob2o2b3o 23b3o2bo3bo2bobob2o2b3o46b3o2bo3bo2bobob2o2b3o23b3o2bo3bo2bobob2o2b3o$
25bo2bo3bo2bobobobo2bo26bo2bo3bo2bobobobo2bo49bo2bo3bo2bobobobo2bo26bo
2bo3bo2bobobobo2bo$23b3o2bo2b3obobobobo2bo24b3o2bo2b3obobobobo2bo47b3o 2bo2b3obobobobo2bo24b3o2bo2b3obobobobo2bo$2b3ob3ob3ob3obo75b3ob3ob3ob
3obo29b3ob3ob3ob3obo6b3ob3ob3ob3obo$2bobobobobobo2bo2bo75bobobobobobo 2bo2bo29bobobobobobo2bo2bo6bobobobobobo2bo2bo$2b3ob3ob2o3bo2bo75b3ob3o
b2o3bo2bo29b3ob3ob2o3bo2bo6b3ob3ob2o3bo2bo$2bobobo3bobo2bo2bo75bobobo 3bobo2bo2bo29bobobo3bobo2bo2bo6bobobo3bobo2bo2bo$2bobobo3bobob3ob3o73b
obobo3bobob3ob3o27bobobo3bobob3ob3o4bobobo3bobob3ob3o2$2b3ob3ob3obo3b 3o73b3ob3ob3obo3b3o27b3ob3ob3obo3b3o4b3ob3ob3obo3b3o$2bo3bobobobobo3bo
75bo3bobobobobo3bo29bo3bobobobobo3bo6bo3bobobobobo3bo$2b2o2bobobobobo 3b3o73b2o2bobobobobo3b3o27b2o2bobobobobo3b3o4b2o2bobobobobo3b3o$2bo3bo
bobobobo5bo73bo3bobobobobo5bo27bo3bobobobobo5bo4bo3bobobobobo5bo$2bo3b 3ob3ob3ob3o73bo3b3ob3ob3ob3o27bo3b3ob3ob3ob3o4bo3b3ob3ob3ob3o2$3ob3ob
3ob3obobobobo69b3ob3ob3ob3obobobobo23b3ob3ob3ob3obobobob4ob3ob3ob3obob
obobo$o4bo3bo2bobobobobobo69bo4bo3bo2bobobobobobo23bo4bo3bo2bobobobobo b2o4bo3bo2bobobobobobo$3o2bo3bo2bobob2o2b3o69b3o2bo3bo2bobob2o2b3o23b
3o2bo3bo2bobob2o2b6o2bo3bo2bobob2o2b3o$2bo2bo3bo2bobobobo2bo72bo2bo3bo 2bobobobo2bo26bo2bo3bo2bobobobo2bo3bo2bo3bo2bobobobo2bo$3o2bo2b3obobob
obo2bo70b3o2bo2b3obobobobo2bo24b3o2bo2b3obobobobo2bob3o2bo2b3obobobobo
2bo!

Let it run in HashLife at around 8^10, it's a very high period mechanism.

Exciting discovery, right? I hope this is worthy of a thread.
Please stop using my full name. Refer to me as dani.

she/they

"I'm always on duty, even when I'm off duty." -Cody Kolodziejzyk, Ph.D.

danny

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Location: i love to eat bees

### Re: I have constructed a lightspeed spaceship in B3/S23!

77topaz

Posts: 1240
Joined: January 12th, 2018, 9:19 pm

### Re: I have constructed a lightspeed spaceship in B3/S23!

Hah, nice job, using the lightspeed telegraph's beehive chain as a lightspeed helix (can we call it that?) is a cute way of getting around the vacuum speed propagation problems.

Running under hashlife isn't necessary to see how it works, but I can see why it came out so high-period--pretty much every reaction is coprime with one another!

EDIT: Alright, fun's over. To avoid confusing future historians, this is an April Fool's joke.
Last edited by Kazyan on April 2nd, 2018, 3:54 am, edited 1 time in total.
Tanner Jacobi

Kazyan

Posts: 777
Joined: February 6th, 2014, 11:02 pm

### Re: I have constructed a lightspeed spaceship in B3/S23!

Speaking of spaceships, it appears that apgsearch has chosen an auspicious day to finally find a loafer-producing soup:

http://catagolue.appspot.com/object?apgcode=xq7_3nw17862z6952&rule=b3s23

Here's the soup in question:

Code: Select all
x = 16, y = 16, rule = B3/S23
bbbobbobobooboob$booobbobbbbbbooo$
obbbooboboobbobb$bobbobbobbbboboo$
bbbbbobbobbbbbob$oobbobobobobobbo$
bbbooobobbobbobb$bbooobbobooobobb$
oobbbbbbbbobbobb$obbbobooobbooboo$
bbobboooobboobob$boobbbbbbbbbbboo$
boooobbbboobbbob$obb5obbbobbbobbb$
bbbboobobooobobb$oobbboboboobbboo! #C [[ THUMBNAIL THUMBSIZE 2 PAUSE 7 GPS 2 LOOP 20 AUTOSTART ]] #C Oddly enough, the same soup also produces #C interesting results in other rules: #C http://catagolue.appspot.com/object?apgcode=xs146_sa9as0v99960v999m011v110vzr888b0j888g0j888j0q23220jaaaizv22xfgggf0fgggf0vgggg09iiic&rule=b78s12345678 x = 16, y = 16, rule = B78/S12345678 bbbobbobobooboob$
booobbobbbbbbooo$obbbooboboobbobb$
bobbobbobbbboboo$bbbbbobbobbbbbob$
oobbobobobobobbo$bbbooobobbobbobb$
bbooobbobooobobb$oobbbbbbbbobbobb$
obbbobooobbooboo$bbobboooobboobob$
boobbbbbbbbbbboo$boooobbbboobbbob$
obb5obbbobbbobbb$bbbboobobooobobb$
oobbboboboobbboo!

dvgrn
Moderator

Posts: 5225
Joined: May 17th, 2009, 11:00 pm

### Re: I have constructed a lightspeed spaceship in B3/S23!

Suspicious. Can't see any xq7 section on b3s23/C1

Majestas32

Posts: 524
Joined: November 20th, 2017, 12:22 pm
Location: 'Merica

### Re: I have constructed a lightspeed spaceship in B3/S23!

Majestas32 wrote:Suspicious. Can't see any xq7 section on b3s23/C1

It's in super small print. You have to use a special computer to be able to magnify the page enough.
Things to work on:
- Find a (7,1)c/8 ship in a Non-totalistic rule (someone please search the rules)
- Find a C/10 in JustFriends
- Find a C/10 in Day and Night
AforAmpere

Posts: 867
Joined: July 1st, 2016, 3:58 pm

### Re: I have constructed a lightspeed spaceship in B3/S23!

Majestas32 wrote:Suspicious. Can't see any xq7 section on b3s23/C1

Well, duh, he posted that on April Fools and that apgcode in the bottom section of the post leads to a pattern that says so. If you look at that soup on the loafer's object page, it's not coloured black, implying it's in some other symmetry - almost certainly a hacked apgsearch on dvgrn's part.

EDIT: Oh, wait, never mind, the explanation is even simpler than that. Dave Greene's post's link's text suggests it leads to http://catagolue.appspot.com/object/xq7 ... 6952/b3s23, but it actually links to http://cranemtn.com/catagolue.appspot.c ... _b3s23.htm, a page just made to look like Catagolue.

77topaz

Posts: 1240
Joined: January 12th, 2018, 9:19 pm

### Re: I have constructed a lightspeed spaceship in B3/S23!

This is what the real soup, generated from the actual catagolue.appspot.com/hashsoup, does:
*..****...*.*..*
.*..*.***.******
.**.**.**.*.***.
.*.***..*.***..*
..*....**..*..*.
..***..*..**.*..
*.*.**..**.**...
.*......*.*.***.
......***.*.*..*
*.**..****....*.
.****.*..**.*.**
***.....**.*..*.
..****.**.*.**..
*******...*.**..
**.*.*.**...***.
*..*.******.**..
x₁=ηx
V ⃰_η=c²√(Λη)
K=(Λu²)/2
Pₐ=1−1/(∫^∞_t₀(p(t)ˡ⁽ᵗ⁾)dt)

$$x_1=\eta x$$
$$V^*_\eta=c^2\sqrt{\Lambda\eta}$$
$$K=\frac{\Lambda u^2}2$$
$$P_a=1-\frac1{\int^\infty_{t_0}p(t)^{l(t)}dt}$$

http://conwaylife.com/wiki/A_for_all

Aidan F. Pierce

A for awesome

Posts: 1695
Joined: September 13th, 2014, 5:36 pm
Location: 0x-1

### Re: I have constructed a lightspeed spaceship in B3/S23!

About dvgrn's April Fool's prank, he also edited some of the comments of the loafer page.
Catagolue page on loafer wrote:On 2017-01-09 at 08:59:11 UTC, 27saka.fitrady wrote:

after 187 objects and 9060814727022 loaves, nope, not yet.

Dvgrn on his modded Catagolue page wrote:On 2018-03-31 at 08:59:11 UTC, 27saka.fitrady wrote:

after 187 objects and 9060814727022 loaves... FINALLY a loafer has arrived!

There's also this one on the modded Catagolue page
Dvgrn on his modded Catagolue page wrote:On 2018-4-01 at 02:03:04 UTC, Someone wrote:

Hang on, there's something odd going on here.

Very sneaky...

Also, that was me who posted the "2016-12-22 comment"
If you're the person that uploaded to Sakagolue illegally, please PM me.
x = 17, y = 10, rule = B3/S23
b2ob2obo5b2o$11b4obo$2bob3o2bo2b3o$bo3b2o4b2o$o2bo2bob2o3b4o$bob2obo5b o2b2o$2b2o4bobo2b3o$bo3b5ob2obobo$2bo5bob2o$4bob2o2bobobo! (Check gen 2) Saka Posts: 2732 Joined: June 19th, 2015, 8:50 pm Location: In the kingdom of Sultan Hamengkubuwono X ### Re: I have constructed a lightspeed spaceship in B3/S23! It's worth saying that Dave has still done something nontrivial here, namely finding a 7-tick predecessor of a loafer in a 16-by-16 box. To get this into actual Catagolue, he now needs to find a SHA-256 preimage of this soup (which is even more nontrivial). What do you do with ill crystallographers? Take them to the mono-clinic! calcyman Posts: 1907 Joined: June 1st, 2009, 4:32 pm ### Re: I have constructed a lightspeed spaceship in B3/S23! Still better than this piece of junk: x = 16, y = 16, rule = B3/S23 o5bob3ob2obo$b2ob2o2bob2ob3o$11bo3bo$12bobo$b2o2bobo3bobobo$bobo2b2obo
2bo2bo$b3o9b3o$12b4o$8bo3b4o$obo3b3o4b3o$obo2bo6bo2bo$6bo6bobo$b2o4b2o 2bo2b2o$11bo2b2o$o3bo6bob3o$2obo2b2ob7o!
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!
muzik

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