#+TITLE: Implementation notes and ideas

* Initial actor
  SAM has just one pre-defined actor: the system actor which can:
  - return the terminal actor
  - make and return network-terminal actors
  - shut down the system
  - save and restore system images
    
  As for other actors, the address of this actor is not guessable and must
  be explicitly provided.  This is especially important for the system actor
  as this is the only thing preventing arbitrary actors from killing or otherwise
  interfering with the VM.

* Initial behaviour
  On startup, SAM can be passed a behaviour.  An actor with
  this behaviour will be created and passed the address to the
  system actor. This defines the eventual behaviour of the machine.