Living things are more programmatic than they might seem at first. Genes have a grammar, and quantum mechanical rules constrain the ways proteins can fold, dictating what kind of structure they can become.
However, wetware differs from software in the way that a living system can reshape itself by exchanging information with its environment.
Software receives input and delivers output, but its response depends on original human agency, even if the specific nature of its response has been derived without direct human intervention.
Although software can run as though it were an open system, the openness is actually an artifact of the brain of the software designer.
Michael Webb, 2001
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