In the familiar Game of Life automata the smallest known replicator takes 34 million generations: http://conwaylife.com/forums/viewtopic.php?f=2&t=399&start=0

In the familiar Game of Life automata the smallest known replicator takes 34 million generations: http://conwaylife.com/forums/viewtopic.php?f=2&t=399&start=0 http://conwaylife.com/forums/viewtopic.php?f=2&t=399&start=0 But in HighLife there is a trivial replicator: https://en.m.wikipedia.org/wiki/Replicator_(cellular_automaton) https://en.m.wikipedia.org/wiki/Replicator_(cellular_automat... Of course for life you need not just replication but mutation and antifraility