I originally intended to post this as a Meditation because a true Meditation is something that leads to enlightenment. But I've come to the realization that I don't undertstand this at all. So I come to you seeking Wisdom.

# tested with Perl 5.6.x
perl -e "do(!$var);"
[download]

The somewhat amusing error message resulting from this implies that I'm asking Perl to accomplish some superhuman (supercomputational?) feat. I'm going on the assumption that this is being read as a deprecated subroutine call based on the current edition of the camel book, and that perhaps the negated class is doing something weird with the parser, but other than that, I cannot come up with an explanation for why this happens. Can someone enlighten me?

Interestingly, adding a warnings switch squashes the error.

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