Thread For Your Useless Discoveries

[dvgrn]

Are there any more glider-half bakery-esque reactions?

None known, I think. Unless you count reactions that re-orient the object instead of just translating it, in which case there's this strange old reaction:

Code: Select all

x = 8, y = 10, rule = LifeHistory
3.A$DC.A2.2C$2D2A2.2C6$2A4.2A$2A4.2A!

One of the blocks doesn't actually participate in the reaction -- it just sits there in the right place to complete the mirror-image constellation when all the smoke has cleared.

The really weirdest thing about this three-block constellation is that you can build a perfect copy of it by hitting a half-blockade with one glider.

[muzik]

I guess that could count as a stable reflector of some sort for two gliders, but then so would this:

Code: Select all

x = 10, y = 8, rule = B3/S23
2bo4bo$obo4bobo$b2o4b2o4$4b2o$4b2o!

Who knows. Maybe there's a 24 cell still life out there with half bakery properties.

Are there any search programs that could help us find reactions akin to the half bakery?

[dvgrn]

Who knows. Maybe there's a 24 cell still life out there with half bakery properties.

Or it could be a 3- or 4-still-life constellation that moves, or rotates, or sits still, when you hit it with a glider, and produces a glider or two or three as output. There are a lot of candidates to test, all equally (un)likely.

At some point maybe it will be worth writing a search program that hits all possible small constellations with all possible gliders, counts and cleans up output gliders, and checks if the output pattern is the same, rotated, reflected, same-pattern-with-an-extra-still-life, or what. The difficult part is writing the test code to catch all possible interesting cases, without also catching millions of false positives.

Monolithic 24-bit still lifes seem like they have a lower probability of surviving a glider impact and producing a glider output. Heinrich Koenig has done the hit-with-all-possible-gliders search for fairly large objects, everything up to 16 bits or so I think back in 2007 -- and very very few of those collisions produce an object with as many bits as you started with. At least when you start with a small constellation of junk you tend to end up with a small constellation of junk. Generally a different constellation... but somehow that seems like a start, anyway.

However "very very few" certainly doesn't mean that such things don't exist at all. We know there's another half-bakery-like reaction out there at some size (though we might have to engineer it using a universal constructor). So it's just a question of finding the smallest one...!

Are there any search programs that could help us find reactions akin to the half bakery?

A search has been tried using small constellations -- see Gabriel Nivasch's sngdetect. If I recall correctly, only the block, blinker, loaf, and half-bakery showed up, from a fairly extensive search. That program wasn't looking for things like the three-block constellation, though -- it had to be a precise translation.

[gmc_nxtman]

Sort of interesting:

Code: Select all

x = 26, y = 10, rule = LifeHistory
4.A15.A$3.A.A.2A10.A.A.2A$3.A.A.2A10.A.A.2A$.2A2.A11.3A.A$A5.3A7.A5.
3A$.3A5.A7.3A5.A$4.A2.2A11.A.3A$.2A.A.A10.2A.A.A$.2A.A.A10.2A.A.A$5.A
15.A!

[Hdjensofjfnen]

Blah:

Code: Select all

x = 6, y = 11, rule = B3/S23
2b2o$2b2o2$bo2bo$bo2bo$ob2obo$2o2b2o3$2b2o$2b2o!

[Hdjensofjfnen]

I want people to look at the spark coil at 96,253 on Generation 488 and watch what happens to it. It looks like progress towards a Pi-ship!

Don't know, really:

Code: Select all

x = 23, y = 25, rule = B3/S23
15bo$13b2ob2o$13b2ob2o2$12b2ob2o$12b2ob2o$18b3o$18b2o2$10b3o$12bo$4bo
5bo2bob2o$2b3ob2o4bob3o$o3bob3o3bob2o5b2o$o4b2obo12b2o$o3bobo2bo$bo5b
2o7b2o$3bo3b2o7b2o$4bo2$13b2o$13b3o$12bo2bo$12bob2o$13b2o!

[Hdjensofjfnen]

Code: Select all

x = 6, y = 11, rule = LifeHistory
F.4.F$F.4.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.4.F$F.4.F!

[dvgrn]

Code: Select all

x = 6, y = 11, rule = LifeHistory
F.4.F$F.4.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.A.3.F$F.4.F$F.4.F!

Without at least a short explanation to go with the pattern, these last few posts have been difficult to figure out. Who is your target audience here, and what exactly was discovered (uselessly or no)?

[Hdjensofjfnen]

Two cells die from the initial configuration in generation 4.

Code: Select all

x = 3, y = 4, rule = B3/S23
obo$3o$3o$bo!

@dvgrn: Sorry, I meant this. Wrong file.

Code: Select all

x = 9, y = 9, rule = LifeHistory
9F$F7.F$F7.F$F.A2.3AF$F.A2.2A.F$F.A2.3AF$F7.F$F7.F$9F!

[gmc_nxtman]

Two cells die from the initial configuration in generation 4.

Code: Select all

x = 3, y = 4, rule = B3/S23
obo$3o$3o$bo!

@dvgrn: Sorry, I meant this. Wrong file.

Code: Select all

x = 9, y = 9, rule = LifeHistory
9F$F7.F$F7.F$F.A2.3AF$F.A2.2A.F$F.A2.3AF$F7.F$F7.F$9F!

Looks similar to the snacker:

Code: Select all

x = 31, y = 11, rule = LifeHistory
2A12.2A$.A12.A7.9F$.A.A8.A.A7.F7.F$2.2A8.2A8.F7.F$22.F.A2.3AF$5.6A11.
F.A2.2A.F$22.F.A2.3AF$2.2A8.2A8.F7.F$.A.A8.A.A7.F7.F$.A12.A7.9F$2A12.
2A!

[Extrementhusiast]

Failed component recreates the inducting pond in such a way as to interfere with the also-inducting eater:

Code: Select all

x = 15, y = 15, rule = B3/S23
8bo$8bobo$8b2o2$7bo2bo$bo5b4o$2bo$3o4b2o$6bo2bob2o$6bo2bobo$7b2o3b3o$
9b3o2bo$7b2o2bo$6bobo$7bo!

[Gamedziner]

Two cells die from the initial configuration in generation 4.

Code: Select all

x = 3, y = 4, rule = B3/S23
obo$3o$3o$bo!

@dvgrn: Sorry, I meant this. Wrong file.

Code: Select all

x = 9, y = 9, rule = LifeHistory
9F$F7.F$F7.F$F.A2.3AF$F.A2.2A.F$F.A2.3AF$F7.F$F7.F$9F!

Looks similar to the snacker:

Code: Select all

x = 31, y = 11, rule = LifeHistory
2A12.2A$.A12.A7.9F$.A.A8.A.A7.F7.F$2.2A8.2A8.F7.F$22.F.A2.3AF$5.6A11.
F.A2.2A.F$22.F.A2.3AF$2.2A8.2A8.F7.F$.A.A8.A.A7.F7.F$.A12.A7.9F$2A12.
2A!

That's because it is a predecessor to the internal component.

[muzik]

*worker bee

[Hdjensofjfnen]

Also, a pure glider generator.

Code: Select all

x = 18, y = 18, rule = B3/S23
2o$obo$b2o6$8b3o$8bobo$8b3o$15b2o$14b3o$14bo2bo$12b2ob2o$11b2obo$11b2o
bo$13bo!

[Hdjensofjfnen]

And a bakery.

Code: Select all

x = 7, y = 7, rule = B3/S23
2ob2o$2ob2o3$b2ob3o$b2obo$5bo!

[gmc_nxtman]

And a bakery.

Code: Select all

x = 7, y = 7, rule = B3/S23
2ob2o$2ob2o3$b2ob3o$b2obo$5bo!

Bakeries are pretty common, and this pattern doesn't work if you rewind the glider.

[muzik]

Are there any other familiar fours?

Removing the blocks from octagon4 makes it decompose into a 4 ponds constellation, but that probably won't be found naturally any time soon.

Pulsar is made up of 4 sections, but those interact and need each other.

[Hdjensofjfnen]

Oh, I see what gamedziner meant:

Code: Select all

x = 23, y = 60, rule = B3/S23
2o19b2o$2o19b2o8$2o19b2o$2o19b2o8$2o19b2o$2o19b2o8$2o19b2o$2o19b2o8$2o
19b2o$2o19b2o2$10b3o$9bo3bo$9b2ob2o14$6b3o5b3o$5bo2bo5bo2bo$8bo5bo$8bo
5bo$7bo7bo!

[gmc_nxtman]

Yet another weird component:

Code: Select all

x = 15, y = 18, rule = LifeHistory
7.A$8.2A$7.2A3.A.A$12.2A$13.A3$6.2A$5.A2.A$6.3A2$A.A2.A.2A$.2A2.2A2.A
$.A6.2A2$2.3A$2.A$3.A!

100th weird component celebration!

[Hdjensofjfnen]

Bookend on bookend synthesis:

Code: Select all

x = 17, y = 4, rule = B3/S23
obo11bobo$bobo9bobo$3bo9bo$3b3o5b3o!

Two-pulsar explosion:

Code: Select all

x = 17, y = 7, rule = B3/S23
7b3o$6bo3bo2$obo11bobo$bobo9bobo$3bo9bo$3b3o5b3o!

[Hdjensofjfnen]

M1641 with bifold symmetry:

Code: Select all

x = 5, y = 8, rule = B3/S23
2o$2o2$2ob2o$2ob2o2$2o$2o!

EDIT: Correction

[praosylen]

Are there any other familiar fours?

Removing the blocks from octagon4 makes it decompose into a 4 ponds constellation, but that probably won't be found naturally any time soon.

Pulsar is made up of 4 sections, but those interact and need each other.

If you look at Golly's integer construction collection, there are two that show up in the top right corner. The bi-pond one is relatively common (I'm calling it "wetland"); the eater one isn't, as far as I know (I'll call that one "restaurant").

[Hdjensofjfnen]

M1161, bifold symmetry:

Code: Select all

x = 8, y = 8, rule = B3/S23
2o$2o$4b4o$2o2b4o$2o2b4o$4b4o$2o$2o!

[Hdjensofjfnen]

At the initialization area of this ark, a pattern of honey farms begins:

Code: Select all

x = 32, y = 29, rule = B3/S23
27bo$28bo$29bo$28bo$27bo$29b3o20$2o$2bo$2bo$3b4o!

EDIT: Run this in Golly. The ark will go off the screen before the chain begins in LifeViewer.
EDIT 2: It begins at around generation 90,000.
EDIT 3: It cuts off at around generation 510,000 when it collides with the ark's debris.
EDIT 4: At that point, it starts destroying the pattern instead.
EDIT 5: At around generation 730,000, the glider stream no longer perturbs the debris.

[gmc_nxtman]

At the initialization area of this ark, a pattern of honey farms begins:

Code: Select all

x = 32, y = 29, rule = B3/S23
27bo$28bo$29bo$28bo$27bo$29b3o20$2o$2bo$2bo$3b4o!

EDIT: Run this in Golly. The ark will go off the screen before the chain begins in LifeViewer.
EDIT 2: It begins at around generation 90,000.
EDIT 3: It cuts off at around generation 510,000 when it collides with the ark's debris.
EDIT 4: At that point, it starts destroying the pattern instead.

It's called a crystal. By the way, there should be a wiki page on crystals.