References - Dereferencing

The first layer of a nested data structure is the only level that can contain real scalar values.  Our array and our hash both contained simple scalar values initially:

    $bar[0]; # 4; A simpler time.
    $baz{cat}; # Lovely, simple "str"

Getting at references is simplified by using the arrow:

    $baz{bar}->[0]; # 4; Ah, simplicity!
    $baz{doit}->(); # "done".  Could it be simpler?