outside of the major east coast (and maybe some west coast?) cities, US interstates tend to be pretty straightforward and well-marked. I wouldn't be surprised i

outside of the major east coast (and maybe some west coast?) cities, US interstates tend to be pretty straightforward and well-marked. I wouldn't be surprised if we saw trucks driving themselves most of the length of I-70 in the near future. they would have to stop in some conditions where a human driver could keep going, but in ideal conditions, they could also keep driving when a human would be required to sleep.