Dave Green has put together a replicator for Conway Life. He has several versions. The smallest, fastest, has a bounding box of 3.7M^2, and takes 89M ticks to make a copy. If I'm reading his description correctly, the population of ON cells is 150K, most of which is information-carrying gliders. Rich ----- Forwarded message from david.m.greene@gmail.com ----- Date: Sat, 23 Nov 2013 14:15:34 -0600 From: Dave Greene <david.m.greene@gmail.com> Reply-To: LifeCA@yahoogroups.com Subject: [LifeCA] Geminoid replicator To: LifeCA <LifeCA@yahoogroups.com> The phase-shifted linear replicator is finally done -- several versions, actually, all using the same single-arm universal constructor and the same basic recipe. See http://conwaylife.com/forums/viewtopic.php?f=2&t=1006&p=9908#p9901 The smallest pattern file is only 27K compressed, but the uncompressed macrocell file is almost 100K so I won't try quoting it here. There are links in the forum posting. Keep the cheer, Dave Greene ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/LifeCA/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/LifeCA/join (Yahoo! ID required) <*> To change settings via email: LifeCA-digest@yahoogroups.com LifeCA-fullfeatured@yahoogroups.com <*> To unsubscribe from this group, send an email to: LifeCA-unsubscribe@yahoogroups.com <*> Your use of Yahoo Groups is subject to: http://info.yahoo.com/legal/us/yahoo/utos/terms/ ----- End forwarded message -----