The Nimble and the Ponderous.
 
William H. Calvin
 
Fast is always relative to something.  
Faster than earlier is accelerating change. Generally, when 
you see accelerating growth, you immediately think of cancer – unless, of 
course, you play the stock market, when you think of selling short to make money 
on the downside.
       But most problems associated with 
rapid change are due to being faster than some interacting process.  For 
example, faster in the center of the stream than the edges leads to turbulence.  
The difference between an expansion and an explosion is whether 
other objects have time to get out of the way.  Always ask, “Faster than what?” 
and remember that old joke about the two guys being chased by the bear.  You 
don’t have to run faster than the bear, only faster than the other guy.
       Orderly growth also operates on the 
difference in two independent growth rates.  Two sheets of cells, where the 
layers are sticky, create a curved surface when one layer grows faster.  So 
faster-slower can be creative as well as destructive.  In prenatal 
development, the various sets of relative growth rates have to be 
carefully controlled.  Otherwise, birth defects result.  
       In society, some things are nimble and 
others are ponderous.  The speed of technological change means that major 
societal changes can be induced in less than a decade without planning or 
consent.  It took less than a decade to go from the knowledge of energy 
available from the atomic nucleus to a bomb.  The web took only a few years to 
achieve a billion web pages, indexed by free search engines.  But the speed of 
reaction (new policies) tends to be much slower; the Euro common currency took 
fifty years, two generations of politicians.  Achieving consensus can take 
decades for complex issues.  What happens in the meantime?