ConwayLife.com

@dvgrn: Many thanks for those suggestions! The outline of this algorithm looks quite reasonable! Maybe we should produce a bash script to do this more systematically?

@bprentice: I totally agree that I should reduce the grid size. I was actually studying the distribution of lengths of transients ...

Thanks! I haven’t thought enough when I posted the thing. This is obviously a pattern.... hence I thought it should go in Pattern. But maybe someone can help me shop this to OCA? @dvrgn

I was staring at this thing again today here and wondering how long does its novelty last (until entering oscillation), but apparently I wasn't able to eyeball it..

Maybe we should add oscar.py to LIfeVIewer as a plugin?

x = 128, y = 128, rule = B12e3eijkr4-acikny5cn6-ce7e/S01c2in3aejkr4 ...

This brain model looks very CA to me. https://www.youtube.com/watch?v=843G1WDnmAU

The algorithm is based on De Bruijn graph, supposedly similar to gfind approach but much more brutal. The advantage is it considers non-vaccum media. The disadvantage is it will be slow.

The script is not user-friendly at all and mainly serves as a basis for search algorithm based in Python in the ...

way of handling B0 rules. :P

Ehhh it was the reversible B0/S8 that we were talking about (aka if you set the rule to B0/S8 then hit run the "rev_init.py") And the B0 defect is long noticed, my old way of fixing it is to introduce a non-vacuum medium to speed up the simulation. (see this example ...

Golly already has a sort of "medium state" functionality like you're describing; it shows the background as non-blinking by inverting the whole universe at each time-step.

Ehh I was talking about reversible rules that took 4 states to emulate and I assume the mentioned functionality is only for ...

UPDATE: attached notebook

The rule B3/S5 is somewhat less chaotic with a finite seed.
The rule B0/S8 features spontaneous string generation/annihilation with a finite seed, and the seed itself turned out to be unbreakable.
1.png
Most other rules are chaotic, especially B1 and B2 ones. Nothing ...

So excited that I dropped my jaw due to this paper by Cosma Shalizi [1].

accompanying blog

Reference
1. Shalizi, C. R., Haslinger, R., Rouquier, J., Klinkner, K. L. & Moore, C. Automatic filters for the detection of coherent structure in spatiotemporal systems. 1–16 (2006). doi:10.1103/PhysRevE ...

New thoughts:
The whole thing may be impossible in principle.
Consider a universal Turing machine living in some rule.
Then, the scalar describing chaos/random/complex should be 0 if the Turing machine halts, and non-0 otherwise.
But it is undecidable whether the Turing machine halts. Thus, the ...

“patch”


WoW. Thanks a lot! (I have a vague memory of having tripped here once.)

Maybe some highlighting can be added in this help page like

[!!WARNING!!!]
Where the same variable appears more than once in a transition, it stands for the same state each time. For example, the transition in ...

I was trying to emulate some 2nd-order rule on the following test pattern (for 1 step).

But then there's no configuration like the one you mention, at the "edge of the lower-left patch" -- only in the middle of the lower-right and upper-right patches. Can you give a specific coordinate in the ...

I was trying to emulate some 2nd-order rule on the following test pattern (for 1 step).


x = 407, y = 250, rule = rev_b3aceijknqrys3aceijknqry2aceikn
228.3A$20.3A204.A3.A$19.A3.A203.A2.2A$19.A2.2A203.A.A.A$19.A.A.A203.
2A2.A$19.2A2.A203.A3.A$19.A3.A204.3A$20.3A3$228.2A$20.3A204.A.A$19.A
3.A205.A ...

The 512-bit MAP string numbers for "S" are just the "B" index numbers plus 16 -- so for S7e, for example, the 512-bit string positions are 383,479,503,509:
{ "7e",367+16,463+16,487+16,493+16}

Thank you for the tip on B->S, this would indicates the centre bit is placed at 2^4. Hence I would ...

Thank you for the explanation, rowett.

I have tried to cut down the dependency of my script but a test set would definitely be helpful.

The script is unfinished:

1. The canonlise() function is not fully implemented yet. Currently no minus sign is allowed.
2. The 102 configurations are yet to be ...

The temperature model (and possibly the belief propagation system too, although I don't know how that works) could probably be approximated on the VN neighborhood using states 1,2,...,n to represent temperatures of 1/n,2/n,etc., for some n.
Granted, you'd need a script to generate the necessary ...

Intend to elaborate on De Bruijn graph at some point. May I be trusted please?

What is the canonical form?

Hi guys,

I am gonna give up characterising rulestrings by dynamics from random soups, given the biohazard example and my recent unfrutiful attempt. It seems make more sense to characterise the combination of (starting pattern + rulestring) rather than the rulestring itself. Although the notion of ...

WoW you guys are onto non-isotropic rules already!

"Return"

We know that vibration of strings creates particles xD.

There is still quite a lot to explore near the precursor

Precursor:
B2ac3iq4aceknw5cijnry6ei7c/S2n3kn4ceknqrz5ceijry6cikn7e8

Notable rules nearby:
B2acn3ijq4aeiknrw5-akq6ei7c8/S3kq4cejknqrz5ceijry6in7e very bumpy loops with gliders ...

7. in the same vincity of 5 and 6
"Let me out!!!"

x = 256, y = 256, rule = B01c2acek3acknq4aijqt5-ckq67/S1e2acn3akq4eijwyz5-ijq6eik78:T256,256
o2b4o4bobobobobobobobobobobobobobobobobobobobobobobobobobobobobobobobo
bobobobobobobobobobobobobobobo4b7o2bobobo3bob10obo3bob2obobobobob25o3b ...

The fixed "mutate.py" takes the current rulestring and flips a random hensel configuration. It depends on the messy collection "KBs.py" and please place them in the same folder.

mutate.py


## Written by Feng (shouldsee.gem@gmail.com) March 2018.
import golly
import KBs

import random


# rulestr ...

I was looking for rule with a Whitespace kind of growth but with a octagonal space filler. I started with one I found in the 'Quadratic Octagon Bloomers" rule thread and just tried random changes

please explain Bernoulli() to me

A nice discovery with nice story xD, congrats.

Bernoulli ...