The point I was trying to make, is depending on the situation, all three responses are entirely reasonable. If it's some idiot/kid/whackjob playing games, you

The point I was trying to make, is depending on the situation, all three responses are entirely reasonable. If it's some idiot/kid/whackjob playing games, you keep moving forward, making it clear he needs to clear out of the way. Maybe lay on the horn. If it's East Palo Alto (or wherever the high-crime area is in the United States right now), and you are about to get jacked, you hit the brakes, reverse, and get the hell out of dodge. If it's a normal traffic situation (Construction, Police Officer, etc...) - you follow their directions. A human can make that assessment in a few hundreds of milliseconds - it's going to be 20+ years at least before any automated driving system is going to figure out what to do in situations like these. (Please don't get overly focussed on the "Some random person pretending to direct traffic situation" - I'm sure you can come up with a hundred other scenarios which require executive, not tactical assessment.) This is why I believe DriverAssist is going to be incredible, particularly on freeways - and already is today - It's an awesome thing to have a recent model BMW brake from 85 mph to a complete stop when the car in front of them slams on the brakes. An entire category of accidents is going to be virtually eliminated as DriverAssist is added to Vehicles.