Can anyone make a case for ever using String.intern?  It seems to be
nothing more than an alias to to_sym on String, and since it's not
defined on Symbol, you can't ducktype a var to get a symbol.

I'm trying to understand why this even exists in the Ruby language, it
doesn't seem like it would be useful for anything.  variable.to_sym
seems to be the safer route to always use.

Thanks, ian
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