This seems like a good idea to me...
Other comments?

Hal


From: Aleksi Niemel<aleksi.niemela / cinnober.com>

> While we are unloading the multiple meanings of nil (or like 0 in C as
null
> and false and... :) shouldn't we do it to the full extent at once by
> introducing FailureClass and mentioned routines should return a failure
> (instance FailureClass).
>
> Then nil would have only (?) the meaning undefined or unspecified.