The unique understanding that engineers offer in
the search for the origins and evolution of naturally
occurring structures is that many "designs" for such
structures÷just like those for man-made
ones÷have nearly
the same overall performance as the optimal
design, even
though they differ in their finer details.
http://www.memagazine.org/contents/current/features/nature/nature.html
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Darwin should be proud, natural selection plus variations = optimal design !!!!
salu2