Strategic Communication Under Uncertainty

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Abstractions about persuasion, cheap talk, shared operational information, and coordination impossibility when messages or participants may be unreliable.

5 abstractions in this family — domain-specific abstractions that sit near one another in structural-signature space (k-means over structural-signature embeddings). Each is shown with its short description.

• Bayesian Persuasion — Model how a sender who cannot lie — committed to a public, truthful signal structure faced by a Bayes-rational receiver — still shifts the receiver's action by choosing how informative the signal is, solved geometrically as the concave closure of the sender's value over posteriors.
• Byzantine Generals Problem — Formalize distributed consensus under adversarial faults — collapse the unbounded space of misbehaviors into a fault budget f and a population n, then read whether all loyal participants can agree straight off the proven floor of 3f+1 (or 2f+1 with signatures).
• Cheap Talk — Costless, non-binding communication whose credibility rests entirely on incentive alignment: as the gap between sender and receiver interests widens, the information a costless message can carry shrinks through ever-coarser partitions down to meaningless babble.
• Joint Information System — The NIMS/ICS crisis-communication structure that integrates public messaging across responding agencies into one consistent voice — treating message inconsistency as a hazard in its own right and holding the joint output coherent while leaving each agency's substantive authority intact.
• Two Generals' Problem — Prove that no finite exchange of messages can make two parties certain they agree when any single message might be lost, because the last message in any protocol is itself unacknowledged.