Def: how complex systems and patterns arise from relatively simple interactions - builds on chaotic systems but focuses on how order emerges from underlying chaos or simplicity
Embryo developed from simple asymmetry
From the basic asymmetry of chemicals injected into the egg all else follows. Genes turn each other on, giving the embryo a head and a rear. Other genes then get turned on in sequence from bow to stern giving each compartment an identity. Other genes then polarise the compartments into front and rear halves. Other genes then interpret all this information and make ever more complicated appendages and organs. It is a rather basic, chemical—mechanical, step-by-step process that would have appealed more to Aristotle than Socrates. From simple asymmetry can grow intricate pattern.
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