From England to Bohemia

I just finished From England to Bohemia: Heresy and Communication in the Later Middle Ages by Michael van Dussen.

The most interesting idea, to me, permeated the book and is captured here: "communication at this time was a contingent, localized practice, mediated and conditioned by ad hoc personal contact and documentary forms that were far from stable.  In a manuscript culture, the material conditions of communication and textual dissemination afforded authorities little advantage over the propagandizing projects of competitors, particularly when it came to crossing regnal boundaries, and particularly, too, when competitors laid mutual claim to authenticating modes and forms of documentation." (p. 127)

The idea that I wished was expanded on and discussed more explicitly: "Religious controversy was indeed a practice or fluid temporal process." (p. 39)