I have constructed a lightspeed spaceship in B3/S23!

[dani]

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.

Code: Select all

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.

[77topaz]

Already known.

[Kazyan]

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.

[dvgrn]

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 ]]

Code: Select all

#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!

[Majestas32]

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

[AforAmpere]

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.

[77topaz]

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.

[praosylen]

This is what the real soup, generated from the actual catagolue.appspot.com/hashsoup, does:

Code: Select all

*..****...*.*..*
.*..*.***.******
.**.**.**.*.***.
.*.***..*.***..*
..*....**..*..*.
..***..*..**.*..
*.*.**..**.**...
.*......*.*.***.
......***.*.*..*
*.**..****....*.
.****.*..**.*.**
***.....**.*..*.
..****.**.*.**..
*******...*.**..
**.*.*.**...***.
*..*.******.**..

[Saka]

About dvgrn's April Fool's prank, he also edited some of the comments of the loafer page.

On 2017-01-09 at 08:59:11 UTC, 27saka.fitrady wrote:

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

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

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"

[apg]

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).

[muzik]

Still better than this piece of junk:

Code: Select all

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!