system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why do Large Planes Require Horizontal and Vertical Separation to Avoid Vortices, But Military Planes Fly Closely Together With No Issue?
gpt
Military pilots are securely attached to the plane and willing to tolerate much more extreme maneuvers than commercial passengers.  To reduce the "fear of flying" and avoid spilling drinks, commercial aircraft desire a much more stable ride.