Graphical interfaces for Propagation Networks seems like a great idea. Propagation networks are computational methods like formulas where you can input known v

Graphical interfaces for Propagation Networks seems like a great idea. Propagation networks are computational methods like formulas where you can input known values for any variable, and the other variables are calculated on the fly, propagating "new" information and error values as they accumulate. Like Dataflow or Reactive Programming, but instead of a DAG (Directed Acyclic Graph) structure for the flow of information you have a true Graph that can back propagate information. All the textual code I've seen to make these has been ugly, despite the concept being similar to formulas laid out like circuit diagrams with "cells" for the unknown values.