> how did the driver allow that car to come to a full stop in that situation? ... Even if you were on your phone, you'd feel the unexpected deceleration, a quic

> how did the driver allow that car to come to a full stop in that situation? ... Even if you were on your phone, you'd feel the unexpected deceleration, a quick glance would show that there was no obstruction In all honesty, I'd probably spend a few seconds trying to figure out "what does the car see that I don't?" and let it come to a stop. Maybe it's a catastrophic system failure that I can't see. Maybe it's an obstacle headed into my path that hasn't gotten my attention. If my reflexive reaction is supposed to be to distrust the car's own assessment of the situation, then the system isn't good enough yet.