Re: The Law of Inconsistent Assumptions

[qumsieh]

The previous example sends a spurious warning message because the former assumption breaks down ... incomplete assumptions about what constitutes a "single script".

Not quite correct. Lexical variables don't live in the symbol table, they have their own scratch pads. Thus:

  my $foo;

and

  $main::foo;

are two different variables, and hence the warning msg.