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A comment on 1D Conway's Life glider found, 3.7B cells long. Parent comment

Re:1D Conway's Life glider found, 3.7B cells long by quuxplusone on Thursday December 04, 2025 @12:19AM (#46144055)
IIUC, "smoke" is ephemeral by definition. A spaceship/glider that leaves persistent "debris" in its wake is called a "puffer":

https://conwaylife.com/wiki/puffer

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