Space nonfiller
A space nonfiller is any pattern that expands indefinitely to affect all but finitely many cells in the Life plane, but leaves an expanding region of vacuum at its center. The first nonfiller was discovered by Jason Summers on April 14, 1999:
| <html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 37, y = 31, rule = B3/S23
19b3o$18bo2bo$12b3o6bo4b3o$12bo2bobo3bo4bo2bo$12bo2bobo3bo4bo2bo$10bo
10bo2bobob3o$10b2o2b2o2bobo4bo5bo$8bo16b2o2b3o$8b3obob2o10bo6bo$6bo8bo
9bobo3b3o$6b3o5bo10bo8bo$3bobo25bob3o$2b5obo26bo$b2o6bo21b5o$2o4b2o18b
obo$bobo3bo2bo15bo2bo3bobo$8bobo18b2o4b2o$b5o21bo6b2o$bo26bob5o$b3obo
25bobo$2bo8bo10bo5b3o$3b3o3bobo9bo8bo$3bo6bo10b2obob3o$5b3o2b2o16bo$5b
o5bo4bobo2b2o2b2o$6b3obobo2bo10bo$7bo2bo4bo3bobo2bo$7bo2bo4bo3bobo2bo$
8b3o4bo6b3o$15bo2bo$15b3o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBNAIL THUMBSIZE 2 THEME 6 HEIGHT 640 WIDTH 640 ZOOM 16 GRID ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> Please enable Javascript to view this LifeViewer. <html></noscript></canvas></div></html> |
| (click above to open LifeViewer) RLE: here Plaintext: here |
By placing a die hard inside the empty space, a pattern can be constructed with the property that every cell in the universe is alive at some point in the pattern's evolution but eventually turns dead permanently.[1]
Also see
gollark: Haiku has HVIF but nobody supports that.
gollark: SVGs now contain JavaScript for some horrifying reason, and the XML-based format is not efficient.
gollark: It would be nice if there was a better vector graphics format than SVGs.
gollark: .
gollark: Which is going to be replaced with something else eventually™, once I design that
References
- Adam P. Goucher (August 5, 2020). Pure nonfillers (discussion thread) at the ConwayLife.com forums
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