Well done, but you have omitted the fact that dereferencing an anonymous function means calling it:

&$aSub(@args);
$aSub->(@args); # This notation due to merlyn
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and at this point if people wonder why a method call looks like a dereferencing operation, they should give themselves brownie points because it is. When you call bless on a reference, it is not the reference that is blessed, it is the thing that the reference points at. And a method call is really a matter of dereferencing the reference in a way that is looking for a method. Consider:

package foo;
sub bar {
  print "foobar strikes again!\n";
}

package main;
# Create and throw away an object
bless \$x, "foo";
# But the blessing is not forgotten!
(\$x)->bar();
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This detail was pointed out to me by merlyn in chatter about a week ago. At first it surprised me, but then I thought about it and it made a lot of sense. After all if I have 10 references to the same thing, shouldn't dereferencing any of them be equivalent? Doesn't a method call look like just dereferencing...?

And so to your list you can add calling an anonymous subroutine and making a method call as dereferencing operations.