(sequel to the first time-travel session)
Hello everyone, I have come back from another time-travel session, just after I left the first one.
Another expert, Dave Greene's student (can't remember his username), came to answer my next question. "What are the new discoveries in Life and OCA?"
He replied five minutes after I asked the question. Calcyman's student, banerjee_a, took on the mammoth task of reducing most of calcyman's megapatterns using modern technology - Snarks, rectifiers, and reduced conduits. The 0E0P metacell was reduced again, this time small enough to fit into LifeViewer.
The mythical Life-Grounded Life spaceship was proven impossible in 2032 using SAT solvers and a method called the Goucher-Waans-Kiernan theorem, named after calcyman, kieven_waans, and ljkiernan respectively. Unfortunately, just after this, dvgrn and Nathaniel retired and decided to add two more mods: hotdogPi and JP21. Haycat2009 and I became mods of our own forums, HaycatGrounded and ColeFactorio.
Catagolue reached 2 undecillion soups in b3s23/C1 on 3 Feb 2050. GPU searches were modified to include all rules that can be supported using apgtables. New quantum symmetries, like Q1 and R8 were created, though this is only in the testing stage.
Among some of the new natural objects found were a Kok's galaxy, a 2EC, and a c/18 ship, which has a minpop of 80 cells. It is currently dubbed the platinumhead.
A 3c/10 based on the pi was created, and it was sufficiently small to build 3c/10 rakes and puffers.
A -find for every letter in the alphabet was created, including jfind, which is a spaceship finding program optimized for quantum computers, and supports HROT rules.
In 2033, pcallahan found a way to make dynamic CGOL constructions in real life using a compound of element 119 (name redacted to prevent paradoxes).
The mythical (7,1)c/8 spaceship was found by wildmyron, silversmith, and tessaron_parker independently in 2028. Here it is, in the Golly 18.pi pattern collection:
Code: Select all
#N falconship.rle
#O wildmyron, silversmith, and tessaron_parker, 17-31 Jan 2028
#C This is the first (7,1)c/8 spaceship found in an INT rule.
#C Smaller spaceships of this velocity have been found
#C in the same rule.
#C Reference: <REDACTED>
x = 60, y = 418, rule = B2a<REDACTED>
<REDACTED>
Sadly, the rule is explosive.
To allow the exploration of large rulespaces, an automatic rulegolfer, or Rule Explorer was finally created. Here is a transcription of Golly 18.pi Rule Explorer (text altered with my comments):
Code: Select all
Welcome to Golly 18.pi Rule Explorer!
Select dimension: 0/1/2/3/4/complex 1-dimensional/fractal (enter Hausdorff dimension)/other
Select geometry: Euclidean/hyperbolic
Select time: discrete/continuous
Select lattice: (depends heavily on dimension)
Select symmetry: (click on a group name in the set of subsets of the full symmetry group of the lattice)
Select neighbourhood: (click on cells in a lattice, cells automatically fill depending on symmetry)
Select number of states: 2/3/4/other
Select changing conditions (this is like an interactive ruletable generator)
Miraculously, nbsearch2a
still works with this mess. nbsearch2a was updated and renamed to oscsearch56, the latest version by DvgrnNeverDies.
The 451-volume series of books was incomplete, with only 13 books complete. The four that were not in the Ennealogy were about 2EC technology, building an Orthogonoid/Demonoid, OCA scripts, and a long overview of all the rulespaces in OCA, including a Build-Your-Own-Rule kit. A volume on Factorio is still in the works.
Factorio became the first HROT non-Moore rule with megapatterns, including a Life metacell, a 17c/947 macroship, a ln(2) calculator. It is, by 2050,
the most explored HROT non-Moore rule.
On the topic of general INT exploration the CAViewer notation has been supported in LifeViewer, allowing arbitrary isotropic rules with 8 cells in the neighbourhood as well as R2 von Neumann isotropic and R3 Cross isotropic to be explored as fully as INT was in 2030.
I hope this helps! Please let me know which date to time-travel to next...