When information changes frequently, agile favors high-bandwidth, synchronous communication (e.g., video/teleconferences, facilitated sessions) that enables rapid clarification, shared understanding, and immediate adjustment. Static written documents become quickly outdated, encourage lag between change and consumption, and invite misinterpretation without fast feedback loops. Even email, while asynchronous, can be used for rapid, lightweight updates—but it still lacks the immediacy and richness of dialogue. AgilePM stresses visible progress, collaborative workshops, and frequent reviews to keep everyone aligned as facts evolve. Therefore, in a high-change context, a written document is typically the least effective mechanism to keep stakeholders synchronized, whereas live conversations and demonstrations better support timely inspection and adaptation.