In late 1964, after five years of construction, the Verrazano Bridge connecting Brooklyn and Staten Island opened to traffic. It was made of steel and was then the longest suspension bridge in the world. In order to prevent corrosion from the sea air, it is painted, using about 12,000 gallons of paint. Since rust would quickly weaken and destroy the bridge, the paint is kept in good shape.
The default condition for iron and even steel is to rust and deteriorate unless steps are taken to inhibit the oxidation process. The default condition for many foods such as meat is to deteriorate and go bad unless the process is inhibited by refrigeration. The default condition for most animals is to flee humans unless cornered.
Humans have several troublesome defaults. (more…)