impossible → routineA car with nobody in itRiding in a car on public roads with no human driver aboard.Impossible2004-03-13No vehicle finishes DARPA's Grand Challenge; the top-scoring one travels 7.5 miles of the course.7.5 miles of a 142-mile coursesource16 years, 6 monthsRoutine2020-10-08Waymo opens its fully driverless service to the general public in metro Phoenix.service area larger than San FranciscosourceAll dated pairs
Riding in a car on public roads with no human driver aboard.Impossible2004-03-13No vehicle finishes DARPA's Grand Challenge; the top-scoring one travels 7.5 miles of the course.7.5 miles of a 142-mile coursesource16 years, 6 monthsRoutine2020-10-08Waymo opens its fully driverless service to the general public in metro Phoenix.service area larger than San Franciscosource