anchor.diff:      member this.RegisterSystem systemName system =
           systemsUnordered.Add (systemName, system)
           systemsOrdered.Add (systemName, system)
  -
  -    member this.UnregisterSystem systemName =
  +        //system.RegisterPipedValue this
  +
  +    member this.UnregisterSystem systemName (_ : 'w System) =
  +        //system.UnregisterPipedValue this
           systemsOrdered.RemoveAll (fun (systemName', _) -> systemName' = systemName) |> ignore
           systemsUnordered.Remove systemName |> ignore
   
  
positive.code:             if Option.isNone systemOpt then failwith ("Could not find expected system '" + systemName + "'.")
              let system = Option.get systemOpt
              &system.Component
  
  /// An Ecs system with components stored by a raw index.
  type [<AbstractClass>] SystemUncorrelated<'t, 'w when 't : struct and 't :> Component> () =
  
negative.code:     abstract ProcessActualize : 'w Ecs -> 'w -> 'w
      default this.ProcessActualize _ world = world
  
  /// Nu's custom Entity-Component-System implementation.
  /// While this isn't the most efficient ECS, it isn't the least efficient either. Due to the set-associative nature of
  /// modern caches, most cache hits will be of the L2 variety for junctioned components. Uncorrelated components will be
  