The key addition of ContextFree is the multiple definitions of the same chosen by probability. So a Blurp could be defined as a) a circle and a Blurp b) a circ

The key addition of ContextFree is the multiple definitions of the same chosen by probability. So a Blurp could be defined as a) a circle and a Blurp b) a circle c) a Blurp and a Blurp And when rendering a Blurp it picks one of a,b, or c randomly (with weighted probabilities) That single addition opens up a huge world of variety.