anchor.diff:      current physics engine be replaceable with pure functional one, improvements to the feature may
       be implementable in time. *)
   
  +    (* TODO: investigate NuEdit extensibility mechanism. *)
  +
       let [<EntryPoint; STAThread>] main _ =
           Console.Write "Running Nu.exe"
           EffectTests.readEffectWorks ()
  
positive.code: open global.Nu
  open Nu.Tests
  module Program =
  
      (* TODO: investigate NuEdit extensibility mechanism. *)
  
      (* DISCUSSION - On Nu's authoring story...
  
  
negative.code:     -----------------------------------------------
      asset graph     | xml           | vs xml editor
      overlay         | xml           | vs xml editor
      simulant        | xml           | NuEdit - rename this to Gaia
      effect          | a-exprs       | Aether (TBA)
      mind (TBA)      | a-exprs       | Pheobe (TBA) - http://www.cs.uu.nl/research/techreps/repo/CS-2013/2013-003.pdf
      interaction     | chains (F#)   | vs F# editor
  
      The advantages and limitations that fall out of this is as such -
  