Why do you need a convergent language? A common misconception is that convergent languages are so-called languages that share the same formal discourse rules. Not quite. Convergent languages follow different patterns in resolving the formal structure of the discourse and the formal structure of their own particular discourse. In this respect, they are not so much different from what we were talking about on our other blog posts—a “convergent style” of grammar altogether, but rather a more flexible style for trying to express a more concrete and expressive discourse about something comprehensible, in a more technical and rigorous fashion.