> Are these the same thing?
   > 
   >     print _@{$data.{costs}};
   >     print _ $data{costs};

Larry has indicated that they almost certainly will be.

Arrays and array refs will be interchangeable in a scalar context
(such as the unary _ applies to its argument).

In fact, in Perl 6 you'll probably have to work *much* harder to 
explicitly stringify a reference.

Damian

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