<s>
In	O
cellular	O
automata	O
,	O
a	O
replicator	B-General_Concept
is	O
a	O
pattern	O
that	O
produces	O
copies	O
of	O
itself	O
.	O
</s>
<s>
In	O
the	O
one-dimensional	O
Rule	O
90	O
cellular	O
automaton	O
,	O
every	O
pattern	O
is	O
a	O
replicator	B-General_Concept
.	O
</s>
<s>
The	O
same	O
is	O
true	O
in	O
the	O
life-like	O
cellular	O
automaton	O
rule	O
Replicator	B-General_Concept
(	O
B1357/S1357	O
)	O
.	O
</s>
<s>
Highlife	O
(	O
B36/S23	O
)	O
rule	O
has	O
a	O
simple	O
replicator	B-General_Concept
.	O
</s>
<s>
On	O
November	O
23	O
,	O
2013	O
,	O
Dave	O
Greene	O
built	O
the	O
first	O
replicator	B-General_Concept
in	O
Conway	O
's	O
Game	O
of	O
Life	O
(	O
B3/S23	O
)	O
.	O
</s>
