Random posts

[wwei23]

the longest-lasting eleven-cell methuselah may even just be an R-sequence and a predecessor for a honey farm or something.

What about switch engine+pre-block/blinker and acorn+tub/t-tetromino?

[Hunting]

The longest-lasting eight-cell methuselah probably consists of an R-pentomino and a preblock or blinker. The longest-lasting nine-cell methuselah is probably an R-pentomino and a predecessor of a traffic light or something, and the longest-lasting eleven-cell methuselah may even just be an R-sequence and a predecessor for a honey farm or something.

7468M

Also what do you mean by "methuselah"? Why would a blinker+glider not work?

[goldenratio]

7468M
Also what do you mean by "methuselah"? Why would a blinker+glider not work?

I assume only "nontrivial" methuselahs (methuselahs you can't just adjust trivially and get something which lasts longer) are counted
ok fine "adjust trivially" is moving some part of the methuselah farther away to last longer but when that region is eventually hit it produces the same evolutionary sequence as if it was closer

The longest lived "nontrivial" 8 cell methuselah is not 7468m, it is this (14321 generations):

Code: Select all

x = 6, y = 34, rule = B3/S23
5bo$5bo$5bo28$b2o$o$o$o!

Actually 9 cells is probably Bunnies 9, not an R+TL but I'm not sure

[MathAndCode]

What about switch engine+pre-block/blinker and acorn+tub/t-tetromino?

The joke is that these are actually true—but not in the way that one would expect, where the R-pentomino doesn't interact with the other objects for several hundred generations.

Code: Select all

x = 6, y = 4, rule = Immigration
4.A$4.2A$2B.2A$B!

Code: Select all

x = 7, y = 3, rule = Immigration
A3.3B$3A2.B$.A!

Code: Select all

x = 12, y = 5, rule = Immigration
6.B.B$7.B2.B$.A8.2B$.2A$2A!

[Hunting]

7468M
Also what do you mean by "methuselah"? Why would a blinker+glider not work?

I assume only "nontrivial" methuselahs (methuselahs you can't just adjust trivially and get something which lasts longer) are counted

The longest lived "nontrivial" 8 cell methuselah is not 7468m, it is this (14321 generations):

Code: Select all

x = 6, y = 34, rule = B3/S23
5bo$5bo$5bo28$b2o$o$o$o!

Define "adjust trivially"

[MathAndCode]

Define "adjust trivially"

The easiest example would be shooting a glider at a block or blinker and trivially lengthening the lifetime by moving the glider back some number of generations.
Another example would be having a glider from an R-pentomino strike a distant (far enough away so that they don't interact except via gliders) block or blinker and simply moving the block or blinker farther away from the R-pentomino along the same diagonal.

[Hunting]

Define "adjust trivially"

The easiest example would be shooting a glider at a block or blinker and trivially lengthening the lifetime by moving the glider back some number of generations.
Another example would be having a glider from an R-pentomino strike a distant (far enough away so that they don't interact except via gliders) block or blinker and simply moving the block or blinker farther away from the R-pentomino along the same diagonal.

I said "define".

[MathAndCode]

I said "define".

to lengthen the lifespan of the methuselah in a way that can lengthen its lifespan indefinitely without any additional effort/rigor per generation lengthened

[Hunting]

I said "define".

to lengthen the lifespan of the methuselah in a way that can lengthen its lifespan indefinitely without any additional effort/rigor per generation lengthened

Define "effort". Your definition is even more subjective than the word "trivially."

[MathAndCode]

Define "effort". Your definition is even more subjective than the word "trivially."

manual or automated searching in any form

[Hunting]

Define "effort". Your definition is even more subjective than the word "trivially."

manual or automated searching in any form

"In any form" - moving the glider could be considered searching (Or maybe you'll have to define "searching" again)

2718281828's definition is much clearer without all those illdefined chains IMO

Then again maybe it's the best to resort to single-cluster and 7468M

[JP21]

Also, I posted a 9 glider synthesis but catagolue still says 10.

You have to wait a few hours for it to get on to the database.

Synthesis was posted in forums. (this thread)
Also the 10 glider synthesis got there after I posted on useless discoveries.

[MathAndCode]

"In any form" - moving the glider could be considered searching (Or maybe you'll have to define "searching" again)

That is why I typed additional. Figuring out how to backtrack a glider might require searching, but it would only require searching for the first two ticks backtracked.

[Hunting]

https://conwaylife.com/forums/viewtopic.php?f=2&t=3267

I should have clarified that I meant threads that we are allowed to use, i.e. that have an been inactive for more than a year.

Forum rules says "without good reason". New discoveries are very good reason. Related discussion in other threads are too. "This is very interesting." is an example of a post that would be allowed in new threads and not old threads.

[Hunting]

In total there are 69 users online :: 7 registered, 0 hidden and 62 guests (based on users active over the past 5 minutes)

Nice number

[JP21]

In total there are 70 users online :: 6 registered, 0 hidden and 64 guests (based on users active over the past 5 minutes)

When did you learn that sixtynine was a nice number? do not answer

[Hunting]

In total there are 70 users online :: 6 registered, 0 hidden and 64 guests (based on users active over the past 5 minutes)

When did you learn that sixtynine was a nice number? do not answer hahahahahahaha

I'll keep it this way it's good

Since I met you

[gameoflifemaniac]

Eater 2 RLE by hand
attempt 1:

Code: Select all

3bob2o$b3ob2o$o$b3ob2o$2bobo$2bobo$3bo!

attempt 2:

Code: Select all

3bob2o$b3ob2o$o$b3ob2o$3bobo$3bobo$4bo!

success!

What about typing apgcode by hand?
User:ColorfulGalaxy/List_of_Patterns_by_apgcode

oh no

[goldenratio]

My least favorite quote of all time

Getting search pattern...
Done

Preprocessing...
Unsatisfiability proved in preprocessing
Done

Time taken: 0 seconds

Unsatisfiable

[MathAndCode]

The fact that this pattern's initial evolution is superficially similar to that of the R-pentomino makes me feel like I'm watching some alien variant of the R-sequence.

Code: Select all

x = 10, y = 5, rule = B3/S23
3o$o2b2o2bo$o5bob2o$b2o5b2o$7b3o!

Here is a twelve-cell predecessor.

Code: Select all

x = 5, y = 7, rule = B3/S23
b2o$3bo$4bo$4bo$o3bo$obo$2obo!

[Hunting]

My least favorite quote of all time

Getting search pattern...
Done

Preprocessing...
Unsatisfiability proved in preprocessing
Done

Time taken: 0 seconds

Unsatisfiable

One of my least favorite quotes:

Getting search pattern...
Done

Preprocessing...
[blah blah blah]
Done

Time taken: 6969.69 seconds

Unsatisfiable

Wastes my precious CPU time

[ColorfulGalaxy]

Eater 2 RLE by hand
attempt 1:

Code: Select all

3bob2o$b3ob2o$o$b3ob2o$2bobo$2bobo$3bo!

attempt 2:

Code: Select all

3bob2o$b3ob2o$o$b3ob2o$3bobo$3bobo$4bo!

success!

What about typing apgcode by hand?
User:ColorfulGalaxy/List_of_Patterns_by_apgcode

oh no

Some of the apgcodes in the list (e. g. sparks and methuselahs) are typed by hand.

[yujh]

Code: Select all

 x = 80, y = 80, rule = B3/S23
.....o..........................................................................$
....ooooo.......................................................................$
....o..oo.......................................................................$
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.oo.............................................................................$
oo.......o.o....................................................................$
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...........................................................oo.............o.o...$
.............................................................o..................$
................................................................o.............oo$
...............................................................oo............oo.$
...............................................................o.o.............o$
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......................................................................o.o.......!

[MathAndCode]

Code: Select all

 x = 80, y = 80, rule = B3/S23
.....o..........................................................................$
....ooooo.......................................................................$
....o..oo.......................................................................$
......oo.o......................................................................$
.oo.............................................................................$
oo.......o.o....................................................................$
.o.o......oo....................................................................$
.ooo......ooo...................................................................$
.oo..........oo.................................................................$
...o.o.........o................................................................$
......oo.......o................................................................$
.....ooo.....oo..oo.............................................................$
.......o......o.ooo.............................................................$
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............................................................oo............oo....$
...........................................................oo.............o.o...$
.............................................................o..................$
................................................................o.............oo$
...............................................................oo............oo.$
...............................................................o.o.............o$
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......................................................................o.o.......!

Code: Select all

x = 137, y = 135, rule = B3/S23
3b2o$2b2o$4bo$6b2o$5bo2$4bo2bo$b2obo$2o4bo$2bobo2bo$7bo$4bo2bo$5bobo$
5bobo4bo$6b2o3b2o$6bo4bobo2$14b2o$14b2o2$10bob2o$9b4o$9bo3b2o$14bo2bo
2$13b2o3bo8b2o$13b2o3bo7b2o$14bo5b2o5bo$14bo4b2o5b2o$15b2o4bo4bobo2b2o
$23b2o3b2ob4o$23b2o10bo$35bo$29bo11bo$31b2o7b2o$34bo5bobo$33b2o$33bob
o3b2obobo$37bo7b2o$36bo4bo5b2o$36bo2bo2b6o4$47b2o$46b2o$48bo$50b2o$49b
o2$48bo2bo$45b2obo$44b2o4bo$46bobo2bo$51bo$48bo2bo$49bobo$49bobo4bo$50b
2o3b2o$50bo4bobo2$58b2o$58b2o2$54bob2o$53b4o$53bo3b2o$58bo2bo2$57b2o3b
o8b2o$57b2o3bo7b2o$58bo5b2o5bo$58bo4b2o5b2o$59b2o4bo4bobo2b2o$67b2o3b
2ob4o$67b2o10bo$79bo$73bo11bo$75b2o7b2o$78bo5bobo$77b2o$77bobo3b2obob
o$81bo7b2o$80bo4bo5b2o$80bo2bo2b6o4$91b2o$90b2o$92bo$94b2o$93bo2$92bo
2bo$89b2obo$88b2o4bo$90bobo2bo$95bo$92bo2bo$93bobo$93bobo4bo$94b2o3b2o
$94bo4bobo2$102b2o$102b2o2$98bob2o$97b4o$97bo3b2o$102bo2bo2$101b2o3bo
8b2o$101b2o3bo7b2o$102bo5b2o5bo$102bo4b2o5b2o$103b2o4bo4bobo2b2o$111b
2o3b2ob4o$111b2o10bo$123bo$117bo11bo$119b2o7b2o$122bo5bobo$121b2o$121b
obo3b2obobo$125bo7b2o$124bo4bo5b2o$124bo2bo2b6o4$135b2o$134b2o$136bo!

[goldenratio]

Have I memorized the immortal gustavo post yet? My attempt:

Seriously, you are Micheal Simkin! I have kept Micheal Simkin in my ignore list! REMOVING NOW FROM IGNORE LIST

Oh wait, we are still rivals. I will also do a c/3 spaceship gun, other than dart, but this time the credits will be mine. And moreover, if it is to be a dart gun, it will be smaller and run at a lower period! Unfortunately, this means p30 with Gosper glider guns, but it will still hold a record!

When scoreboards show "Rehermann vs Simkin" I will never admit, but ONLY now I used your gun to make a p360 oscillator:

Ok now let's compare with the real one

Seriously, you are Michael Simkin! I kept Michael Simkin in my ignore list! REMOVING NOW FROM IGNORE LIST

Oh wait, we are still rivals. I will also do a c/3 spaceship gun, other than dart, but this time the credits will be mine. And moreover, if it is to be a dart, my gun will be smaller and run at lower period! Unfortunately that means p30 with Gosper glider guns, but will hold a record!

When we get famous and scoreboards show 'Rehermann vs. Simkin' I will never admit it, but ONLY now I used your gun to make a p360 oscillator:

pretty close