manual memory management

[Mehrdad]

On Wednesday, 9 January 2013 at 20:16:04 UTC, Andrei Alexandrescu 
wrote:
> What you're missing is that you define a store that doesn't 
> model object references with object addresses. That's what I 
> meant by "references are part of the language". If store is 
> modeled by actual memory (i.e. accessing an object handle takes 
> you to the object), you must have GC for the language to be 
> safe. If store is actually indirected and gives up on the 
> notion of address, then sure you can implement safety checks. 
> The thing is everybody wants for references to model actual 
> object addresses; indirect handles as the core abstraction are 
> uninteresting.
>
> Andrei



But why can't Reference hold the actual address too?
Seems like a perfectly reasonable implementation to me, and 
there's no extra indirection involved that way, right?