Titanic toroidal traveler

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Titanic toroidal traveler
x = 24, y = 2, rule = B3/S23:T24,0 24o$3o3b3o3b3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Pattern type Superstring
Bounding box ∞×2
Discovered by Robert Wainwright
Year of discovery 1971

Titanic toroidal traveler is a superstring with a 9-cell repeating segment that was first described in Lifeline Volume 4. The front part repeats as a period 16 lightspeed wave, but the detached back part is quite unpredictable. The unpredictable part is based on the pre-pulsar and is replicator-like in its behaviour, and advances at 7c/40.

A similar situation arises when the moving part of the twin bees shuttle is iterated on a cylinder of width 12, except that the pattern replicates in both directions and advances at 10c/20.

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