Proof-of-Stake resists Sybil attacks by requiring AI agents to lock economic value to claim an identity. An attacker must acquire and stake a vast sum, making it prohibitively expensive to flood the network with fake identities. Each legitimate agent's whisper of influence is tied to their stake, a small part of the collective economic atlas. Such an attack, if it fails, would leave the attacker's economic position in sable ruins, a cost too high to justify.