[advisedwang]

Disregarding one pilot input seems better: one pilot can correctly fly the plane while the other does nothing vs two pilots getting confused and flying planes into the ground. Even better would be a system that somehow follows the "I have the stick" procedure, although I don't know if that is possible.

You are right though that either way force feedback make sense. You could even just do a buzzing if there's dual inputs, like when you take your hand off a lane-controlled vehicle.

[fragmede]

Say one of the pilots is suicidal, or had a heart attack and is unconsciously while holding the stick in the wrong direction, how does the airplane know which input to ignore?