Driving under the speed limit will cause a hazardous situation in many situations, as you will cause a substantial slow down in traffic. The idea that this represents “These cars will drive better than you or I drive,” is absurd.
Very true. The bottlenecks in traffic flow caused by slow divers cause others to take chances (especially on the two-lane roads around here).
It is safer to have everyone moving at about the same speed--whatever the speed is.