As AI models achieve perfect linguistic and cultural mimicry, the traditional 'tells' of phishing (bad grammar, suspicious links) will vanish. Defensive strategies must shift toward 'Instinct-Based Training' and 'Cryptographic Verification' of all communications. The 'Human-as-a-Sensor' model will rely on detecting 'Semantic Anomalies'—requests that don't fit the established behavioral pattern of the sender.