[math-fun] Adam's Life census
APG>Speaking of appeasing Wolfram, I recently launched a distributive search of random initial configurations in lifelike cellular automata. In order to contribute, it's as simple as running the Python script in Golly (preferably n instances if your computer has n cores). We're at 66 billion objects so far for the most popular search (Conway's Game of Life with no symmetry), which is satisfying given that it's only been running for 11 days: http://catagolue.appspot.com/census/b3s23/C1 (At the moment I'm running the script on 44 CPUs to attempt to reclaim my position as most prolific contributor, after it was stolen from me by my trans-Atlantic friend Dave Greene. He's only got 12 CPUs at his disposal, but they can run 24/7 rather than just overnight when no-one's looking!) Sincerely, Adam P. Goucher ---------- I expected little more from this effort than some tedious statistics. Instead, this search is turning up new and interesting stuff: oscillators, puffertrains, improved syntheses, a period 24(!) that should have been found by Conway and Guy decades before mine, a period 3 oscillator that cannot be stabilized by other than a (central) period 2. ...ooo.....ooo . ......o...o o.......o.......o o....ooooooo....o o...o.......o...o ..o.o..ooo..o.o ....o.o...o.o ...oo.o...o.oo ....o.o...o.o ..o.o..ooo..o.o o...o.......o...o o....ooooooo....o o.......o.......o ......o...o . ...ooo.....ooo Is this a period 6?? Even more fun: The long awaited invulnerable fighting gun-- a puffertrain that shoots gliders backwards. When two ordinary guns "cross swords", retaliatory gliders and stalagmites soon end the experiment (unless it loops quickly). But these babies are invulnerable. My very first "war" lasted nearly 40000000, gosper.org/invulgun.png , while doing remarkable things. --rwg
Where's that puffertrain? I want to play too! On Wed, Mar 4, 2015 at 8:22 PM, Bill Gosper <billgosper@gmail.com> wrote:
APG>Speaking of appeasing Wolfram, I recently launched a distributive search of random initial configurations in lifelike cellular automata. In order to contribute, it's as simple as running the Python script in Golly (preferably n instances if your computer has n cores). We're at 66 billion objects so far for the most popular search (Conway's Game of Life with no symmetry), which is satisfying given that it's only been running for 11 days: http://catagolue.appspot.com/census/b3s23/C1
(At the moment I'm running the script on 44 CPUs to attempt to reclaim my position as most prolific contributor, after it was stolen from me by my trans-Atlantic friend Dave Greene. He's only got 12 CPUs at his disposal, but they can run 24/7 rather than just overnight when no-one's looking!)
Sincerely,
Adam P. Goucher ----------
I expected little more from this effort than some tedious statistics. Instead, this search is turning up new and interesting stuff: oscillators, puffertrains, improved syntheses, a period 24(!) that should have been found by Conway and Guy decades before mine, a period 3 oscillator that cannot be stabilized by other than a (central) period 2.
...ooo.....ooo . ......o...o o.......o.......o o....ooooooo....o o...o.......o...o ..o.o..ooo..o.o ....o.o...o.o ...oo.o...o.oo ....o.o...o.o ..o.o..ooo..o.o o...o.......o...o o....ooooooo....o o.......o.......o ......o...o . ...ooo.....ooo
Is this a period 6??
Even more fun: The long awaited invulnerable fighting gun--
a puffertrain that shoots gliders backwards. When two
ordinary guns "cross swords", retaliatory gliders and
stalagmites soon end the experiment (unless it loops
quickly). But these babies are invulnerable. My very
first "war" lasted nearly 40000000, gosper.org/invulgun.png , while doing remarkable things.
--rwg _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun
-- -- http://cube20.org/ -- [ <http://golly.sf.net/>Golly link suppressed; ask me why] --
On 2015-03-04 20:38, Tom Rokicki wrote:
Where's that puffertrain? I want to play too!
The invulnerable gun: x = 16, y = 16, rule = B3/S23 obbooboobobobboo$ bbbbbooooobbbboo$ bbbobbboboboobbo$ obooobbobobobbbo$ obbobooobooooobb$ bobbobobbboobbob$ oobboobbobboboob$ ooooobbobobobboo$ bobbbbobooboobob$ ooooobbooboooobb$ bbbboobbbooobobb$ obooooooooobboob$ bbobobbboobbbboo$ bbbbobobbooobbob$ oobbboooobbooobo$ oooobbbobbbbobob! Traditional gun vs gun was rather insensitive to displacement by x=2, y=0, t=0, but this one builds and unbuilds crystals whose exact length matters. I lost the initial conditions on that first run, but sometime around 26000000 it drilled the deepest debris tunnel I've ever seen. It finally died with two beacon boat-bit pulse dividers. If you want a twin bees puffer or pufferfish, I can easily find them again in the census. --rwg
On Wed, Mar 4, 2015 at 8:22 PM, Bill Gosper <billgosper@gmail.com> wrote:
APG>Speaking of appeasing Wolfram, I recently launched a distributive search of random initial configurations in lifelike cellular automata. In order to contribute, it's as simple as running the Python script in Golly (preferably n instances if your computer has n cores). We're at 66 billion objects so far for the most popular search (Conway's Game of Life with no symmetry), which is satisfying given that it's only been running for 11 days: http://catagolue.appspot.com/census/b3s23/C1
(At the moment I'm running the script on 44 CPUs to attempt to reclaim my position as most prolific contributor, after it was stolen from me by my trans-Atlantic friend Dave Greene. He's only got 12 CPUs at his disposal, but they can run 24/7 rather than just overnight when no-one's looking!)
Sincerely,
Adam P. Goucher ----------
I expected little more from this effort than some tedious statistics. Instead, this search is turning up new and interesting stuff: oscillators, puffertrains, improved syntheses, a period 24(!) that should have been found by Conway and Guy decades before mine, a period 3 oscillator that cannot be stabilized by other than a (central) period 2.
...ooo.....ooo . ......o...o o.......o.......o o....ooooooo....o o...o.......o...o ..o.o..ooo..o.o ....o.o...o.o ...oo.o...o.oo ....o.o...o.o ..o.o..ooo..o.o o...o.......o...o o....ooooooo....o o.......o.......o ......o...o . ...ooo.....ooo
Is this a period 6??
Even more fun: The long awaited invulnerable fighting gun--
a puffertrain that shoots gliders backwards. When two
ordinary guns "cross swords", retaliatory gliders and
stalagmites soon end the experiment (unless it loops
quickly). But these babies are invulnerable. My very
first "war" lasted nearly 40000000, gosper.org/invulgun.png , while doing remarkable things.
--rwg _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun
On 2015-03-04 22:43, rwg wrote:
On 2015-03-04 20:38, Tom Rokicki wrote:
Where's that puffertrain? I want to play too!
The invulnerable gun: x = 16, y = 16, rule = B3/S23 obbooboobobobboo$ bbbbbooooobbbboo$ bbbobbboboboobbo$ obooobbobobobbbo$ obbobooobooooobb$ bobbobobbboobbob$ oobboobbobboboob$ ooooobbobobobboo$ bobbbbobooboobob$ ooooobbooboooobb$ bbbboobbbooobobb$ obooooooooobboob$ bbobobbboobbbboo$ bbbbobobbooobbob$ oobbboooobbooobo$ oooobbbobbbbobob!
Traditional gun vs gun was rather insensitive to displacement by x=2, y=0, t=0, but this one builds and unbuilds crystals whose exact length matters. I lost the initial conditions on that first run, but sometime around 26000000 it drilled the deepest debris tunnel I've ever seen. It finally died with two beacon boat-bit pulse dividers.
If you want a twin bees puffer or pufferfish, I can easily find them again in the census. --rwg
[clip] Holy cow, it's *not* invulnerable (gosper.org/mygunjammed.png )! Some time after 50000000 steps a fluorescence glider must've crept NE up the side of the diagonal column and nailed the glider launcher as it was peeping around the side. This was just another small, even number tweak of the initial horizontal separation. This is the first experiment that didn't end with the spontaneous formation of glider eaters. The only other outcome I can picture is eventual periodicity of the debris. Ideally, sprouting switch-engines for quadratic growth. In these bilaterally symmetric experiments, periodicity may be elusive due to glider (and even spaceship) commerce with the increasingly distant central column. Damn, the bad old days of screengawking have returned. --rwg
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Did you see this one? x = 144, y = 16, rule = B3/S23 o2b2ob2obobo2b2o112b2o2bobob2ob2o2bo$5b5o4b2o112b2o4b5o$3bo3bobob2o2bo 112bo2b2obobo3bo$ob3o2bobobo3bo112bo3bobobo2b3obo$o2bob3ob5o116b5ob3ob o2bo$bo2bobo3b2o2bo114bo2b2o3bobo2bo$2o2b2o2bo2bob2o114b2obo2bo2b2o2b 2o$5o2bobobo2b2o112b2o2bobobo2b5o$bo4bob2ob2obo114bob2ob2obo4bo$5o2b2o b4o116b4ob2o2b5o$4b2o3b3obo116bob3o3b2o$ob9o2b2o114b2o2b9obo$2bobo3b2o 4b2o112b2o4b2o3bobo$4bobo2b3o2bo114bo2b3o2bobo$2o3b4o2b3obo112bob3o2b 4o3b2o$4o3bo4bobo114bobo4bo3b4o! It "ends" improbably with a large period "crystallization and decay". Normally in these experiments, crystals grow until they clobber something. Then, they either shrink back to the beginning and grow again, or they erupt in chaos. The former case is not a loop, because something got clobbered (unless it was a very fortuitously placed eater.) The present case manages to loop infinitely via a remarkable maneuver: The upper beams "pass thru each other" via the "Jedi Transparency Trick", and cleanly switch the lower crystals from slow growth to rapid shrinkage just like the perfectly placed eater. - --rwg On 3/5/15 2:38 PM, rwg wrote:
On 2015-03-04 22:43, rwg wrote:
On 2015-03-04 20:38, Tom Rokicki wrote:
Where's that puffertrain? I want to play too!
The invulnerable gun: x = 16, y = 16, rule = B3/S23 obbooboobobobboo$ bbbbbooooobbbboo$ bbbobbboboboobbo$ obooobbobobobbbo$ obbobooobooooobb$ bobbobobbboobbob$ oobboobbobboboob$ ooooobbobobobboo$ bobbbbobooboobob$ ooooobbooboooobb$ bbbboobbbooobobb$ obooooooooobboob$ bbobobbboobbbboo$ bbbbobobbooobbob$ oobbboooobbooobo$ oooobbbobbbbobob!
Traditional gun vs gun was rather insensitive to displacement by x=2, y=0, t=0, but this one builds and unbuilds crystals whose exact length matters. I lost the initial conditions on that first run, but sometime around 26000000 it drilled the deepest debris tunnel I've ever seen. It finally died with two beacon boat-bit pulse dividers.
If you want a twin bees puffer or pufferfish, I can easily find them again in the census. --rwg
[clip] Holy cow, it's *not* invulnerable (gosper.org/mygunjammed.png )! Some time after 50000000 steps a fluorescence glider must've crept NE up the side of the diagonal column and nailed the glider launcher as it was peeping around the side. This was just another small, even number tweak of the initial horizontal separation. This is the first experiment that didn't end with the spontaneous formation of glider eaters. The only other outcome I can picture is eventual periodicity of the debris. Ideally, sprouting switch-engines for quadratic growth. In these bilaterally symmetric experiments, periodicity may be elusive due to glider (and even spaceship) commerce with the increasingly distant central column. Damn, the bad old days of screengawking have returned. --rwg
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participants (3)
-
Bill Gosper -
rwg -
Tom Rokicki