All those extra difficulties of long haul relative to cars are big challenges to humans because the scale is so far off from the baseline of our embodied intell

All those extra difficulties of long haul relative to cars are big challenges to humans because the scale is so far off from the baseline of our embodied intelligence, but not much of a difference to machines. A human driver eyeballing a difficult curve will easily be half a meter or more off over the length the trailer. But for a machine it it does not really matter wether it plots a path for a Twizzy through the LIDAR point cloud or for a semi-trailer, as long as the model is accurate. Humans have all their relevant sensors at a single point, awkwardly mapped to vehicle dimensions with mirrors and guesswork, therefore human driving gets worse with increasing vehicle size. A driving machine however can take input from all over its body, its "skilll does not deteriorate with increase in vehicle size (arguably it might even improve because a bigger vehicle will have more computing and a wider range of sensors at the same fraction of total mass and cost). The bigger the rig the easier it becomes for robots to compete with humans.