OMG!  We got it in, but how do we get it out?

Dipping into deeply nested structures can sometimes be a bit intimidating and confusing.  The whole idea of using the reference's sigil to dereference the value breaks down very rapidly once nesting starts:

    ${$baz{foo}}; # Not bad...
    ${$baz{bar}}[0]; # Starting to get ugly...
    &{$baz{doit}}(); # WTF!  Unmaintainable.

The '->' operator helps us avoid this calamity.