Difference between revisions of "Broken lines"

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(update to 474 million)
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This pattern produces a broken line of gliders heading southwest, produced by the collision of two lines of [[LWSS]]s (which also produce a broken line going northeast). The two input lines have themselves been broken by lines of gliders, one directly produced by a rake, the other produced by the collision of the northeast line of gliders colliding with the rake's line. This collision also intermittently produces additional gliders, which wander off to the southwest, eventually impacting one of the lines of [[LWSS]]s.  
This pattern produces a broken line of gliders heading southwest, produced by the collision of two lines of [[LWSS]]s (which also produce a broken line going northeast). The two input lines have themselves been broken by lines of gliders, one directly produced by a [[rake]], the other produced by the collision of the northeast line of gliders colliding with the rake's line. This collision also intermittently produces additional gliders, which wander off to the southwest, eventually impacting one of the lines of [[LWSS]]s.  


The open question is whether the pattern eventually breaks, as the additional gliders may crash into the stationary gun, destroying it. Dean did not observe this in 535,000 generations, but he suspects the failures may be "exponentially sparse" so it might be billions of generations before one is observed.
The open question is whether the pattern eventually breaks, as the additional gliders may crash into the stationary gun, destroying it. Dean did not observe this in 535,000 generations, but he suspects the failures may be "exponentially sparse" so it might be billions of generations before one is observed.


The pattern has now been tested to over 474 million generations, without a failure observed.
The pattern has now been tested to over 474 million generations, without a failure observed.

Revision as of 21:50, 27 March 2014

Broken lines
Broken lines image
Pattern type Miscellaneous
Discovered by Dean Hickerson
Year of discovery 2005


This pattern produces a broken line of gliders heading southwest, produced by the collision of two lines of LWSSs (which also produce a broken line going northeast). The two input lines have themselves been broken by lines of gliders, one directly produced by a rake, the other produced by the collision of the northeast line of gliders colliding with the rake's line. This collision also intermittently produces additional gliders, which wander off to the southwest, eventually impacting one of the lines of LWSSs.

The open question is whether the pattern eventually breaks, as the additional gliders may crash into the stationary gun, destroying it. Dean did not observe this in 535,000 generations, but he suspects the failures may be "exponentially sparse" so it might be billions of generations before one is observed.

The pattern has now been tested to over 474 million generations, without a failure observed.