<_description>
A cellular automaton that is really a two-dimensional Turing machine:
-as the heads (``ants'') walk along the screen, they change pixel
+as the heads ("ants") walk along the screen, they change pixel
values in their path. Then, as they pass over changed pixels, their
-behavior is influenced. Written by David Bagley.
+behavior is influenced.
+
+Written by David Bagley; 1997.
</_description>
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