I agree. I think it will be very hard to make something that drives better than a really good human driver who is focused on driving. Getting better than the 50

I agree. I think it will be very hard to make something that drives better than a really good human driver who is focused on driving. Getting better than the 50+% of people I see with their phone clapped to their faces while they drive (despite that being illegal in Austin) is much easier (though still difficult) task. The other thing is that something going wrong with a plane in the air is a pretty big deal. You can't just pull over and wait. If you assume a "first, do no harm" principle of robotics for driverless cars, the failure mode should in most cases by "pull over and wait." This can still cause problems in many situations, but people do it now.