Hi,
One of the power of slots is the concept of Virtual Slots that do not have an ivar to store their state.
But of course, some uses fo this concept want to store state in the object.
(e.g. imagine a property slot, all proper slots of the object would store into a property dictionary).
The idea is that one can add iVars reflectively that are hidden from both introspection *and* the class
definition. (the inspector should get a view to see reality, of course, similar to how we tread Dictionaries and OrderedCollection:
The ���basic��� view is not relavant in most cases, it is just available in addition, the default is the high level view that is closer
to the ���mental model��� of the programmer).