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|WikiProject Robotics||(Rated Stub-class, Low-importance)|
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According to the author, it will be half a century before we have the required technology to build them. Is this from now, or the 1988 article publication? — Preceding unsigned comment added by 22.214.171.124 (talk) 17:19, 3 May 2012 (UTC)
- Come to think of it, the Christmas Bush in Rocheworld (so called because it communicates with colored lights) is a bit like utility fog in that it sometimes separates into smaller pieces. —Tamfang (talk) 08:01, 12 September 2014 (UTC)