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  1. or download this
        One of the biggest problems in all of compter
        programming is namespace management and data
        hiding. When you use a symbolic reference you are
        throwing away forty years of expensive lessons from
        the School of Hard Knocks.
    
  2. or download this
        Because it's a CGI, it is very unlikely that I'll want
        to use a "$name" variable somewhere else for
        some purpose other than sucking in the "name"
        element as in my example.