Could you explain what you mean? My understanding was that Attitude indicators s...

		blakeweb on May 30, 2011 \| parent \| context \| favorite \| on: Regulation, not technology is holding back driverl... Could you explain what you mean? My understanding was that Attitude indicators solved this problem using a gyroscope a long time ago. Maybe this falls into what you meant by an "outside reference", but it seems to me autopilots would clearly take these measurements into account. http://en.wikipedia.org/wiki/Attitude_indicator

it does, they can fail. humans can fail at assessing relevant information as well.