> Treating errors as facts of life. Even the passengers are part of the system. Example: those cigarette ashtrays in the bathrooms? They're not left over from

> Treating errors as facts of life. Even the passengers are part of the system. Example: those cigarette ashtrays in the bathrooms? They're not left over from some mid-century period where you could smoke on planes—they're very intentional and there to prevent fires in the event someone does smoke on a plane, which, since it's a very plausible and easy to make human error, must be accounted for safely and systemically. That way of thinking permeates air safety thinking, and it's why air travel is safe, period.