It was in those drills that the document's imperfections became productive. Gaps in explanation prompted peer-teaching sessions. Ambiguities became generators of discussion; debate sharpened understanding. A poorly-worded paragraph, when argued over at 2 a.m., turned into collective clarity. Version X did not promise to be flawless; it allowed users to interrogate it, to make it belong to them. In that sense, the PDF was less a static repository than a rehearsal script that demanded active participation.