Difference between revisions of "IceNine"

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{{Glossary}}
 
{{Glossary}}
'''IceNine''' is [[Dave Greene]]'s name for a hypothetical unstoppable [[quadratic growth]] pattern that expands outward through random [[ash]] at speed [[c]]/137, described as follows in a tongue-in-cheek post in February {{year|2008}}:
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'''IceNine'''{{refn|group=note|The name is a reference to the [http://en.wikipedia.org/wiki/Ice-nine chemical of the same name] in the novel ''[http://en.wikipedia.org/wiki/Cat's_Cradle Cat's Cradle]'' by [http://en.wikipedia.org/wiki/Kurt_Vonnegut Kurt Vonnegut], with similar properties to the hypothetical pattern. It is not related to [https://en.wikipedia.org/wiki/Ice_IX Ice IX], a metastable form of solid water.}} is [[Dave Greene]]'s name for a hypothetical unstoppable [[quadratic growth]] pattern that expands outward through random [[ash]] at speed [[c]]/137, described as follows in a tongue-in-cheek post in February {{year|2008}}:
  
 
{{Cquote|Aha!  You and your intuition have clearly not been exposed to the IceNine Agar, found recently with an alternate-universe oscilloscope:
 
{{Cquote|Aha!  You and your intuition have clearly not been exposed to the IceNine Agar, found recently with an alternate-universe oscilloscope:
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It is generally agreed that a pattern exhibiting the characteristics of IceNine cannot exist in [[Conway's Game of Life]], but a formal proof remains elusive.
 
It is generally agreed that a pattern exhibiting the characteristics of IceNine cannot exist in [[Conway's Game of Life]], but a formal proof remains elusive.
  
The name is a reference to a chemical in the novel ''[http://en.wikipedia.org/wiki/Cat's_Cradle Cat's Cradle]'' by [http://en.wikipedia.org/wiki/Kurt_Vonnegut Kurt Vonnegut], with similar properties to the hypothetical pattern.
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==Notes==
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<references group="note" />
  
 
==External links==
 
==External links==

Latest revision as of 23:48, 7 January 2019

IceNine[note 1] is Dave Greene's name for a hypothetical unstoppable quadratic growth pattern that expands outward through random ash at speed c/137, described as follows in a tongue-in-cheek post in February 2008:

He went on to further characterize IceNine as follows:

It is generally agreed that a pattern exhibiting the characteristics of IceNine cannot exist in Conway's Game of Life, but a formal proof remains elusive.

Notes

  1. The name is a reference to the chemical of the same name in the novel Cat's Cradle by Kurt Vonnegut, with similar properties to the hypothetical pattern. It is not related to Ice IX, a metastable form of solid water.

External links

  • Adam P. Goucher (June 13, 2009). Re: Stable Life? (discussion thread) at the ConwayLife.com forums