If anything about driverless cars can be considered an old riddle it is this one: the car is driving itself down a residential street when a woman pushing a baby stroller suddenly enters a crosswalk. Unable to stop, should the car’s computer opt to hit mother and child, or veer off to strike a tree, almost certainly killing its passengers?
That macabre scenario has been fodder for ethicists almost since the prospect that cars might drive themselves first entered the horizon. It also, however, provides a second riddle: Regardless of the choice made by the car’s computer, who pays for the damages?
