[ghaff]

Something in this vein--or some other variant of autonomous cars driving on (relatively) predictable limited access highways--seems a much more achievable goal for, say, the next decade than general purpose autonomy. As you say, there are still obstacles to overcome to which I'd add legal and regulatory concerns. I sure don't want a car for which I'm liable if it makes a "mistake."

The general purpose robo-taxi will almost certainly happen someday but I'd be more likely to bet on fifty years than ten.