Furthermore, the Airbus design philosophy makes a point of hiding “unnecessary” information from the pilots. Redundant cues are avoided. For example, the Airbus sidesticks do not communicate with one another in such a way that one pilot can tell, by the motion of his stick, what the other pilot is doing. They also lack proportionate resistance or “feel,” which might have alerted the pilot to his presumably unintended pitch command. Similarly, when the autothrottle is operating the throttle levers do not move, even though power is changing. Finally, Airbus pilots are scarcely aware of pitch trim, which automatically, continually and silently operates to zero out elevator actuation forces. In this case, however, trim was important, because the pilot’s continually holding the stick back had run the autotrim to its nose-up stop. If the crew had managed to understand that they needed to push over into a 35-degree dive to recover, they would probably have had to retrim manually.