Dynamicland
There&#x27;s the usual scaling problem with graphical representations.<p>The now-discontinued Blender game engine was an example of building a complex system by connecting up boxed with arrows. You could easily get to a few square meters of program, and then finding anything was tough.<p>Dynamicland PR: &quot;Programs are flexible, and compose readily.&quot; So what do you compose? A functional block with ins and outs? What&#x27;s the equivalent of a subroutine? That&#x27;s where graphical systems usually fall down.