> > When you 'ultimately' dereference a package you do it by 
> > UUID. However, there are only very few places where this
> > is required. For everything 'inbetween' you should use 
> > 'real objects' (PackageReferences) which allow
> > you to think in whatever way is more convenient to you.
> 
> Or to put it an other way (provided I understood you correctly) - we
> should use objects as "far" as possible and not rely on textual
> descriptions.

Not quite. My point is that even when we write tools we are 'users'. If the
systems makes it hard for us to get to convenient notions (names) then it's
going to be a pain (and that's what Lex referred to). If names/ids are
properly encapsulated this is much less of a hazzle.

Cheers,
  - Andreas