Search found 284 matches

by Kiran
January 28th, 2017, 10:01 pm
Forum: Other Cellular Automata
Topic: Linea (B2-a3-i/S23-a)
Replies: 34
Views: 11852

Re: Linea (B2-a3-i/S23-a)

Do you think a breeder will be found soon?
by Kiran
January 28th, 2017, 11:12 am
Forum: Patterns
Topic: Programmable computer
Replies: 35
Views: 26921

Re: Programmable computer

It takes a bit over 50 million generations to start printing primes.
by Kiran
January 27th, 2017, 9:10 am
Forum: Patterns
Topic: Pseudorandom Glider Gun
Replies: 10
Views: 5773

Re: Pseudorandom Glider Gun

...CSPRNG (which at least needs to be mathematically proved to earn that title, cf. Blum-Blum-Shub)...With Blum-Blum-Shub, you can only calculate the future keystream output [assuming factorisation is hard]. Actually, cyphers based on diffusion and confusion are, in some respects, more secure than ...
by Kiran
January 26th, 2017, 2:52 pm
Forum: Patterns
Topic: Pseudorandom Glider Gun
Replies: 10
Views: 5773

Re: Pseudorandom Glider Gun

Salsa20 is not cryptographically secure. It's random enough for use as a stream cipher, but 'cryptographically secure' requires that if you know its current state, it's still infeasible to 'run it backwards' to determine historical output. Salsa20 is trivially invertible owing to only comprising ad...
by Kiran
January 25th, 2017, 8:53 pm
Forum: Patterns
Topic: Pseudorandom Glider Gun
Replies: 10
Views: 5773

Re: Pseudorandom Glider Gun

I've constructed a linear shift register in GoL:
You will need something better, LFSRs are nowhere near cryptographically secure.
If you manage simulate Salsa20/20, that would be very impressive, but impractical, even though it is the simplest CSPRNG I can think of.
by Kiran
January 25th, 2017, 6:00 pm
Forum: Other Cellular Automata
Topic: Wireworld as electronic component
Replies: 6
Views: 2331

Re: Wireworld as electronic component

PHPBB12345 wrote:

Code: Select all

x = 58, y = 28, rule = WireWorld
snip
You just went full plebian.
by Kiran
January 24th, 2017, 4:43 pm
Forum: Other Cellular Automata
Topic: Wireworld as electronic component
Replies: 6
Views: 2331

Re: Wireworld as electronic component

I believe there is nothing wrong with reviving old threads, as long as the new post fits into the old thread.
In this particular case, the new post is not relevant to the original thread, so there was no reason to post in it.
by Kiran
January 23rd, 2017, 11:15 pm
Forum: Other Cellular Automata
Topic: WireWorld Crossover?
Replies: 4
Views: 1744

Re: WireWorld Crossover?

PHPBB12345 wrote:

Code: Select all

x = 25, y = 7, rule = WireWorld
9.2C.C.2C$CBA7C.4C.9C$9.2C.C.2C$12.C$9.2C.C.2C$10C.4C.9C$9.2C.C.2C!
Catastrophic failure:

Code: Select all

x = 25, y = 7, rule = WireWorld
9.2C.C.2C$BA8C.4C.9C$9.2C.C.2C$12.C$9.2C.C.2C$4CBA4C.4C.9C$9.2C.C.2C!
by Kiran
January 22nd, 2017, 1:08 pm
Forum: The Sandbox
Topic: What's your apgcode?
Replies: 11
Views: 3314

Re: What's your apgcode?

I make a block:

Code: Select all

x = 5, y = 5, rule = B3/S23
2bobo$b4o$o3bo$2b2o$3obo!
by Kiran
January 21st, 2017, 1:10 pm
Forum: Other Cellular Automata
Topic: Thread For Your Unrecognised CA
Replies: 1473
Views: 508347

Re: Thread For Your Unrecognised CA

BlinkerSpawn wrote:Spaceship in Comway+-1:
This looks a lot like a cordership, only travelling in the orthogonal direction.
I don't understand the rulestring, is there anywhere I can read about this rule format?
by Kiran
January 21st, 2017, 1:53 am
Forum: The Sandbox
Topic: test
Replies: 35
Views: 9245

Re: test

Is this the pattern I gave to muzik as a birthday present?
by Kiran
January 21st, 2017, 12:07 am
Forum: The Sandbox
Topic: Birthdays
Replies: 284
Views: 87076

Re: Birthdays

Happy birthday müzîk! x = 610, y = 377, rule = Evoloop:T610,377 .4B.3B8.B20.B9.B50.B5.2B2.3B.B3.B.2B55.2B13.3B.2B13.5B.B10.B42.2B.2B 70.3B.B30.2B17.3B23.3B16.5B9.3B14.B.B.2B43.2B.6B24.B11.B17.B$.2B4.B.B 26.3B9.B55.B.B4.2B4.B.2B26.2B.B40.B17.2B3.B.B9.3B21.B20.2B42.B31.2B 31.2B40.2B3.2B6.B7.2B2.2B.B27...
by Kiran
January 19th, 2017, 9:08 pm
Forum: Patterns
Topic: Can we build a slow grey ship?
Replies: 18
Views: 7103

Re: Can we build a slow grey ship?

The slowest grayship I know of is c/5: #N c/5 greyship #O Hartmut Holzwart #C A c/5 orthogonal greyship discovered in March 2010 #C http://www.conwaylife.com/wiki/index.php?title=C/5_orthogonal x = 286, y = 199, rule = b3/s23 86b5o195b$89bobo194b$85bo6bo5b5o183b$85bo3bo11bobo182b$86b2obo7bo6bo5b 5o1...
by Kiran
January 19th, 2017, 9:00 pm
Forum: The Sandbox
Topic: The Game of Life
Replies: 13
Views: 4185

Re: The Game of Life

The Game of Life, additionally referred to just as Life, is a cell robot concocted by the British mathematician John Horton Conway in 1970. The "diversion" is a zero-player amusement, implying that its advancement is dictated by its underlying state, requiring no further info. One collaborates with...
by Kiran
January 18th, 2017, 7:01 pm
Forum: Other Cellular Automata
Topic: Mirrors
Replies: 12
Views: 4947

Re: Mirrors

This rule has nice methuselahs: x = 5, y = 3, rule = Mirrors C.C2$C.C.C! This one, at 3292192 generations, is probably not exceptional (larger patterns of defect cells go practically forever.) x = 5, y = 3, rule = Mirrors C2.C2$C.C.C! I wonder who can find the longest lasting one that terminates.
by Kiran
January 17th, 2017, 5:58 pm
Forum: The Sandbox
Topic: [Forum Game] CA Puzzles
Replies: 34
Views: 9904

Re: [Forum Game] CA Puzzles

drc wrote:what do i win?
The right to post the next puzzle, or to name someone else if you want to pass it up.
by Kiran
January 16th, 2017, 5:40 pm
Forum: The Sandbox
Topic: Birthdays
Replies: 284
Views: 87076

Re: Birthdays

Happy birthday Nathaniel! Sorry you can't run this in viewer. x = 243, y = 243, rule = HPP O.O3.O.O9.O.O3.O.O27.O.O3.O.O9.O.O3.O.O81.O.O3.O.O9.O.O3.O.O27.O.O3.O .O9.O.O3.O.O2$O.O3.O.O9.O.O3.O.O27.O.O3.O.O9.O.O3.O.O81.O.O3.O.O9.O.O 3.O.O27.O.O3.O.O9.O.O3.O.O4$O.O3.O.O9.O.O3.O.O27.O.O3.O.O9.O.O3.O.O 8...
by Kiran
January 10th, 2017, 7:19 pm
Forum: Website Discussion
Topic: Wiki idea: Ads
Replies: 2
Views: 4994

Re: Wiki idea: Ads

Ads would mess up the wiki and make it look trashy.
I could not find a donation page for either LifeWiki, ConwayLife, or Golly.
I don't doubt many people would like to contribute.
by Kiran
November 26th, 2016, 5:45 pm
Forum: Website Discussion
Topic: LifeWiki Did-You-Knows
Replies: 40
Views: 41899

Re: LifeWiki Did-You-Knows

The lightspeed telegraph in the large patterns collection can be adapted to send a signal back along a different channel.
by Kiran
November 10th, 2016, 12:19 pm
Forum: Website Discussion
Topic: LifeWiki Trusted Account Request Thread - Post requests here
Replies: 325
Views: 120399

Re: Massive spam attacks on the wiki (and forums?)

The bar for constructive contributions by genuine, well-meaning users should be as low as possible. A contribution, especially from a new user, is a gift. Do we want to charge for accepting gifts? I see your point there, I see a trade-off between getting clogged with spam and blocking contributions...
by Kiran
November 9th, 2016, 5:15 pm
Forum: Website Discussion
Topic: LifeWiki Trusted Account Request Thread - Post requests here
Replies: 325
Views: 120399

Re: Massive spam attacks on the wiki (and forums?)

Even better idea:
Use GoL based PoW, while collecting soup data!
Enforce that a new user must contribute some amount of work to apg-search, proven by the PoW system in apg-search, to start posting.
by Kiran
November 9th, 2016, 9:30 am
Forum: Website Discussion
Topic: LifeWiki Trusted Account Request Thread - Post requests here
Replies: 325
Views: 120399

Re: Massive spam attacks on the wiki (and forums?)

Why not enforce Scrypt proof of work on new users? This would make it computationally difficult for spammers to make new accounts, and the few they create can be banned quickly. Also, post rate limits can be imposed on new users, to ensure they do not spam too much. Someone who actually wants to joi...
by Kiran
November 8th, 2016, 8:39 pm
Forum: Patterns
Topic: "One-way travel" oscillators?
Replies: 25
Views: 12401

Re: "One-way travel" oscillators?

Something like this (for 2c particles)? x = 53, y = 27, rule = B3/S23 31bo$26b4o3bo$29bo3bo$33bo$30bo$31b2o7$21bo$19bo3b4o$19bo3bo$19bo$22bo $20b2o$26bo$25bobo$26bo$2b2o2b2o2b2o2b2o2b2o2b2o5b2o2b2o2b2o2b2o2b2o2b 2o$2b2o2b2o2b2o2b2o2b2o2b2o5b2o2b2o2b2o2b2o2b2o2b2o3$2o2b2o2b2o2b2o2b 2o2b2o2b2ob2o2b2o2...
by Kiran
November 8th, 2016, 8:22 am
Forum: General Discussion
Topic: User zdr no longer exists
Replies: 2
Views: 2452

Re: User zdr no longer exists

"I’ve moved on to other things. It’s in good hands with Gavin and everyone."
by Kiran
April 3rd, 2016, 6:12 pm
Forum: Patterns
Topic: (27,1)c/72 caterpillar challenge
Replies: 176
Views: 107813

Re: (27,1)c/72 caterpillar challenge

biggiemac wrote:You beat me to one. I have this which isn't all the way clean.
Natural MWSS!

Also, how likely is it that a spaceship would result from this reaction, does it look viable?