ConwayLife.com

Difficulty table works like planed economy, it would be better let the market decide price of each type of object. when profit is enough, miners would not waste any potential interesting soups. The difficulty table is not a (prescriptive) table of prices ; it's a (descriptive) table of the reciproc...

Using messless as a proof-of-work would have the problem that people would discard a soup as soon as it has an escaping glider, and therefore miss lots of discoveries that would have been found by running those soups to completion. So, even if we had a multi-billion-dollar cryptocurrency, we'd be un...

p114: x = 74, y = 61, rule = B3/S23 ... 8 rows shaved off: x = 74, y = 53, rule = B3/S23 43b2o6b2o12b2obob2o$3bo3b2o12b2o20b2o6bobo4b2ob2obo2b2obobo$2bobobo2bo 12bo30b3o2bo3bob2o6bo$2bobob2obo4bo5bo31bo3bobob2o4b5ob2o$b2obo3bo3b3o 4bob4o27bobobobo2bob2o4bobo$o3b4o3bo6bobo4bo30bo4bo2b4o3bo$4o3b2o3bo...

Yes, the blinkers that are already there form the instruction tape. It's translated by 2 cells to the right by this reaction (which will be the velocity of the spaceship). You can't move your blinkers and burn them too. The blinkers in the (very very long) tape are different from the blinkers in th...

This has been covered earlier: https://conwaylife.com/forums/viewtopic.php?f=2&t=2040&start=25#p97070 I don't understand how that's supposed to work. There are already blinkers there. Yes, the blinkers that are already there form the instruction tape. It's translated by 2 cells to the right by this...

wwei47 wrote: ↑

April 9th, 2021, 7:45 am

Uh, this is cool and all, but how do you plan to put back the blinkers? There needs to be a copy of the instruction tape somewhere.

This has been covered earlier: https://conwaylife.com/forums/viewtopic ... =25#p97070

It looks like forward HWSS-creating reaction might be sufficient for initial construction. The reaction can be used to create an arbitrary stream of single-channel monoparity HWSSes. The stream can then be aimed at a blinker elbow (or elbows) to (hopefully) provide universal construction. Here is a...

This (or a variation thereof) might potentially allow a faster-recovery post-elbow-2c/3-to-G: x = 151, y = 148, rule = LifeHistory 49.3B$49.5B$48.6B$48.8B$48.8B10.A$15.A26.B4.9B8.3A$15.3A5.2A16.3B3. 11B5.A$18.A3.B2AB13.6B2.13B3.2A$17.2A4.3B7.4B2.7B.13B4.B$17.5B2.B2.2B 2.28B5.3B$19.15BD25B3.6B$18.2A1...

2--6--7 and 2--3--8--7: x = 112, y = 62, rule = B3/S23 77b2o$72b2obo2bo$72b2ob3o2$72b6o$71bo6bo$71bobob4o$69bobobo7bo$69b2o2b o2b6o$8b2o63bobo$3b2obo2bo62b2obo2b6o$3b2ob3o66bobo6bo$75bobo2b5o$3b6o 67b2obo7bo$2bo6bo69bo2b6o$2bobob4o69bobo$obobo7bo65b2obo2b6o$2o2bo2b6o 68bobo6bo$4bobo74bobo2b5o$3b2obo...

Should Catagolue have a page explaining how apgcodes work and/or have a link to LifeWiki's apgcode page? I feel like newcomers would be confused by the term "apgcode" and think that the term needs explaining. Yes, it's here -- https://catagolue.hatsya.com/help/wechsler.txt -- although the LifeWiki ...

... Any hope of getting another glider out somewhere, while keeping the Spartan-ness and the 74-tick repeat time? That would really revolutionize single-channel construction, since SingleChannel74 is (probably) quite a bit more efficient than SingleChannel90. The closest I can manage is this, sacri...

I'm locking this thread as it's devoid of anything constructive.

Why does Catagolue list xq4_163zzzzzzzzzzzyzym48e as requiring seven gliders? Someone must have submitted an RLE containing this (possibly a Mark Niemiec mosaic of alternative syntheses for a glider) and it was misinterpreted as a synthesis for a pair of gliders: x = 42, y = 65, rule = B3/S23 35bob...

I don't think that's likely to work, because oscar.py/oscar.lua relies on the idea of keeping track of a list of just the lowest hash values in a range of tested generations. For a period-P pattern I don't see how you can be sure that you're going to find the matching hash value until you've tested...

Could we speed up oscar.py by only looking at generations from a sparse ruler , and using hash life to jump between them? Yes, that's exactly what lifelib does. The pdetect algorithm in lifelib accepts an upper limit N as a parameter, and it constructs a finite sparse ruler of size O(sqrt(N) log(N)...

The problem is with the Catagolue update process, rather than Shinjuku, and it's difficult to resolve without making deep changes to the way Catagolue stores glider syntheses. Specifically, there's a census called b3s23/synthesis-costs which records the cost (in gliders) of every object Catagolue kn...

Dylan Chen has actually made plenty of positive contributions to cellular automata.

You, on the other hand, just pollute the Sandbox with dozens of pointless and/or antagonistic threads.

I've banned you from the forums for a month, BokaBB.

usually with a couple of different choices for timing mod 8. I believe that changing which input glider results in an output glider results additional output timings mod 8. Yes, in addition to the distance to the reflector in full-diagonals, there are three independent binary decisions: Whether to ...

As I think you wrote on another thread, some CGOL hobbyists are engineers, not mathematicians. If something obviously can be done, then it may be "trivial" to a mathematician to do it, but not everyone sees it that way. There are interesting CGoL problems for mathematicians too. One I've been think...

Unfortunately, this requires a sparker. x = 32, y = 24, rule = B3/S23 4b2o14bo$3bo3bo12bo$3bobobo12bo4bo$2obob2o2b2o9bo3bo$o2bobo2b4o9b3o$2b 2obob2o3bo$4b2o6bobo6bo$4bo10bo4bobo$3b2ob2o7bo4bobo$4bobo4bo3bo5bo$4b obo4bo3bo$5bo9bo9b2o$12bo2bo5bo3b2o$14bo5bobo$12bobobo3bo2bo$11bobob2o 4b2o$11bobo$12b2...

Here's a final step for a xq4_2534uof1u0u1fou4352zy087084048078zx3igi3x3igi3 synthesis, which is heavily based on a previous partial result by Kazyan : I was able to complete this into a 215 glider synthesis, which should make a good starting point for further reductions: Congratulations! This is t...

Here's an interesting mechanism in which one GPSE shoots its gliders inside the exhaust of another GPSE, causing a feedback loop which eventually settles down into a periodic puffer. x = 16, y = 16, rule = B3/S23 bo2bobobobob3o$b3obob2obo2b3o$obobob2obob2obo$b2o3bobo2b2o$3o3b5o3bo$ 2bo3b5o$10obob2o$...

Awesome work! This allows a slight reduction from 4560 to 4536 cells: According to my untrained eyes, this form is still not optimal. Indeed. Here's an even more minor reduction to 4526 cells: x = 73, y = 62, rule = LifeHistory 29.B3A4.2A10.2A$19.2A9.A3B4.A10.A2.A.2A.2A$20.A10.A3B3.A.AB9.2A.2A.2A $...

This requires a single stream of gliders. It also would shoot down the Achim's P144... Awesome work! This allows a slight reduction from 4560 to 4536 cells: x = 72, y = 63, rule = LifeHistory 29.B3A4.2A10.2A$19.2A9.A3B4.A10.A2.A.2A.2A$20.A10.A3B3.A.AB9.2A.2A.2A $19.A12.4B3.2AB.3B6.B14.A$19.2A12.4B4...

Here's another 1-cell-off (2,1)c/6 almost knightship from an ongoing search by Dylan Chen: x = 32, y = 51, rule = B3/S23 11bo$10b3o3bobobo$9b2o2b2o2bobob2o$10b3obobo4b3o$10b2o2b2o5b3o$10bob3o 3bo2b3o$10bo2bo4b2ob3o$5b2obo3bo5b5o$4b3o4b3o6bo$2b2o2bo2bob4o$2b2o$o 4bo2b6o$7o$b2o4bob2o2b3o$9b2obo$3bo4b...