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I can imagine some special individuals who is visiting every topic just to see if something was added to the last post, but majority of people don't do that

Wait, what??? It's running back!!!

Hunting wrote: April 20th, 2020, 12:59 am A minor point: If others can't see your edit, then that means no one cares about that thread anymore.

Regular people don't open topic that is not marked as updated in the list

I see, so even though this rule is written kind of strictly it's still possible to break that rule occasionally without serious consequences

Great - thanks, now it's all consistent

I see your point

Now a little of common sense - as correctly noted above if you add something at the end of the last message it will NOT be reflected in the list of topics, so updated topic will go to the bottom of the page and eventually will "die" on the next page of the list, because nobody will ...

Please add to the rules that life viewer tag is not allowed (at least for newbies) because right now it is a strange situation when it's kind of allowed (and included as a button in dialog form) but then somebody reach you through private messages and "politely" ask you to change viewer tag to code ...

As long as you know that people subscribed to a thread or board will get a notification email pointing them to your new post, and that's exactly what you want to happen, then you're probably doing double-posting right (unless you start getting objections).

That's a point I had not considered. I ...

Those messages are kind of having different subjects written in different days, but ok - if you like to read long posts talking about slightly different things at once that's fine :roll:

BTW - this is attempt to send light-speed signal through the tail of another wickstretcher from Jason Summers ...

Good to know, thanks!

There are CGOL things called "wickstretchers" that can be used to build zebra-striped channels - for example this one (created by Jason Summers in May 2005) with reduced height to fit small light-speed signal (here I use object OSD5#A72B64 ) and it may even absorb incoming light-speed defect if it ...

Almost light-speed to glider converter, sort of ;)

x = 412, y = 187, rule = B3/S23
182b2o2b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2o
b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob ...

Instances of dr running on my Linux machine found nothing yet, but my brute-force custom program found almost 180-degree reflector for smallest light-speed signal :lol:

#C Found by wire1 10451575 on April 18, 2020 <me@shaos.net>
x = 14, y = 11, rule = B3/S23
2b2ob2ob2ob2o$2b2ob2ob2obobo$12bo ...

It's really nice little blob
I've saved it to my collection

P.S. It's 16x16 - does it mean that nothing smaller can crawl "against-the-grain"?

This is all 1970s stuff, I think.

Yes, sure it started early - 1st finding was noted in LifeLine 3:17, September 1971 :)
But most recent one I think 2007 (according to Gabriel Nivaschs's page ) BTW it was from HartmutHolzwart :mrgreen:
Signals with periods 3 and 5, "p1 bubble" (and also "against ...

I decided to create separate topic specifically about this type of signals:

http://www.gabrielnivasch.org/fun/life/lightspeed-signals

A few well known examples (some can push optional dot in front of them):

x = 41, y = 71, rule = B3/S23
2bo2bo2bo2bo2bo2bo2bo2bo2bo2bo2bo2bo2bo$2b37o2$2b37o ...

Hunting wrote: April 17th, 2020, 12:43 amThat's an example of a pattern collection - he is not talking about wicks.

Did you open Signal[2].mc? There is a row called "wick" there

What about Lightspeed Wire in Zebra-stripe? Are there any LW->G or G->LWyet?

Yes I'm seeking for everything regarding signals inside any environment. My current collection is very partial. Please commit the patterns and pattern collections or link to them (for example Jason's wicks are in 50 ...

A few instances of dr are still running on my Linux machine - nothing interesting was found yet...

I'm currently thinking that dr can not be used for example to find patterns which convert lightspeed signal to glider, so I can write my own distributed finder - with server that distributes tasks and ...

I'm looking at this since about 2007: http://www.gabrielnivasch.org/fun/life/lightspeed-signals (when it was www,yucs,org/~gnivasch)
besides that little walker described above and beyond I like this signal below that was discovered by Alan Hensel in 1995:
#CXRLE Pos=47,0
x = 40, y = 13, rule = B3 ...

Hunting wrote: April 15th, 2020, 8:49 pmIt's still two times larger than the original signals, though - which may not help...

you're right

Hunting wrote: April 15th, 2020, 8:43 pm Congratulations on understanding how dr works.

Because it's symmetrical I think it should be a little easier to search for useful extensions of it

...But how?

dr - if I understood correctly it supports definition of symmetry that should reduce search space

I'm looking at this since about 2007: http://www.gabrielnivasch.org/fun/life/lightspeed-signals (when it was www,yucs,org/~gnivasch)
besides that little walker described above and beyond I like this signal below that was discovered by Alan Hensel in 1995:
#CXRLE Pos=47,0
x = 40, y = 13, rule = B3 ...

So all cells of the "drifter" must die in generation 0?...
No, that's certainly not true. I haven't run many dr searches myself, but I think that a 1->1->0 cell would just have to be set up as "o".

The idea is that all 'o' and '.' cells form part of the stable background...

So then 1->1->0 ...

dvgrn wrote: April 15th, 2020, 7:23 amPossibly a modern effort to parallelize and distribute a search among thousands of CPUs might turn something up.

I though about something distributed as well

P.S. Look here to continue discussion: viewtopic.php?f=2&t=4430