Signal Crossing in NCA
In Nobili cellular automaton, a signal crossing organ consists of a single confluent cell, with two perpendicular input paths and two perpendicular output paths. Due to the substantially reduced size (as compared with any of the vNCA crossing organs), self-replicating machines are much more compact in NCA. For example, the smallest replicator so far, λG, comprises only 485 somatic cells.
Read more about this topic: Nobili Cellular Automata
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