Help me understand infinity

[Richard Gaskin]

In the v9.6.1RC1 Release Notes there's this:

    Infinity constant
    The constant infinity has been added to the language in this release.
    As a result, theunquoted literal infinity is now reserved. Any
    existing uses of it should be quoted, as otherwiseit will resolve to
    the floating point value representing infinity, rather than the
    string "infinity".

What is the use-case prompting this?

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
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