system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Airplane Windows

So I was on a plane and the steward asked to open all windows during takeoff and landing. Why do they need to be open?
gpt
Statistically, takeoff and landing are the most dangerous times during a flight. If there were to be an emergency, it is important for first responders to be able to see into the plane to judge conditions and locate victims.