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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Spacefiller | 1/1 | https://en.wikipedia.org/wiki/Spacefiller | reference | science, encyclopedia | 2026-05-05T11:39:05.281896+00:00 | kb-cron |
In Conway's Game of Life and related cellular automata, a spacefiller is a pattern that spreads out indefinitely, eventually filling the entire space with a still life pattern. It typically consists of three components: stretchers that resemble spaceships at the four corners of the pattern, a growing boundary region along the edges of the pattern, and the still life in the interior region. It resembles a breeder in that both types of patterns have a quadratic growth rate in their numbers of live cells, and both share a three-component architecture. However, in a breeder the moving part of the breeder (corresponding to the stretcher) leaves behind a fixed sequence of glider guns which fill space with gliders, moving objects (gliders or spaceships) rather than still life patterns. With a spacefiller, unlike a breeder, every point in the space eventually becomes part of the space-filling still life pattern.
== References ==