Wanted to start a stash of CA coincidences that aren't as quantifiable as those in the mathematical-coincidences thread. "Poetic" is naturally extremely subjective, but I'd like to leave it up to people's intuition without trying to clamp down too rigorously. Here are my two to start with:
1. I hadn't seen it pointed out before this post from Paul Callahan that Eater 1 innately contains a dead glider, and it's possible that this went unnoticed for 50 years:
Update 2: [...] it threw me for an instant when that white "glider" showed up in the eater before I realized it represents the 5 dead cells in the neighborhood.
2. Just saw that this one is already in the LifeWiki DYKs, but Dave Greene posted a loafer soup as an April Fool's Day prank and made a joke about it being an auspicious day for apgsearch to pick. Two years later, the first natural loafer appeared on April Fool's Day.
M. I. Wright wrote: June 18th, 2025, 11:54 am
1. I hadn't seen it pointed out before this post from Paul Callahan that Eater 1 innately contains a dead glider, and it's possible that this went unnoticed for 50 years:
Update 2: [...] it threw me for an instant when that white "glider" showed up in the eater before I realized it represents the 5 dead cells in the neighborhood.
The snake has two "dead gliders" and coincidentally it can only eat a G0glider pair; it can't eat a glider.
The fully universal Turing machine, demonstrating that the evolution of finite patterns in Life was as hard as the halting problem, was finished on March 23rd aka 23/3 (or 3/23 with missing B and S).
andrewthelifer wrote: September 20th, 2025, 11:00 am
The fully universal Turing machine, demonstrating that the evolution of finite patterns in Life was as hard as the halting problem, was finished on March 23rd aka 23/3 (or 3/23 with missing B and S).
The "OCA:Fireworks (2/13/21)" page was created on "2/13/21".
The first p90 pi-heptomino hassler was also discovered on the 30th of March
Currently working to improve Life's guns and work on updating SKOPs and Isotropic rules most similar to B3/S23 to Life standards. Will get software to begin searches eventually.
andrewthelifer wrote: September 20th, 2025, 11:00 am
The fully universal Turing machine, demonstrating that the evolution of finite patterns in Life was as hard as the halting problem, was finished on March 23rd aka 23/3 (or 3/23 with missing B and S).
Þat's also my birþday, which is a poetic coincidence too, which i pointed out in my signature
I was born on march 23 (3/23). I was destined to be here, and here i am.
Check out my bird-brained biblioraphy if you're interested.
Big fan of crawler ships
In 1996, a paper was published regarding a Life-like rule that the paper described as "worthy of the name". The initials of its author, Jean-Claude Heudin (JCH), are very similar to that of John Horton Conway (JHC).
I could've chose a better username, but oh well.
Still learning the ropes of cellular automata, focused on one OCA at a time. My current interest is B35/S126 and range-two LTLs.