Cataphracts as an analogy for deterrence by sound

A panelist compares the Black Swans' approach with an account of seventh-century Greek cataphracts. In that example, the sound of charging horsemen could frighten opponents into dispersing before the mounted troops reached them. The analogy concerns an anticipated threat influencing behaviour before physical contact. No named battle or supporting source is supplied, so it remains the panelist's illustrative historical account.