These drones need to be able to do one thing: - do not hit the tree (or ground) And the things not to not hit are basically static. Year, Wind might move part

These drones need to be able to do one thing: - do not hit the tree (or ground) And the things not to not hit are basically static. Year, Wind might move parts of them here and there, but you can just try to make sure to avoid them far enough. And we do not see if they can do event that. Self driving cars on the other hand... - avoid static objects (like trees, or houses) - stay in lane - detect and act on traffic signs and lights - detect other moving object and predict where they will be in the near future - watch for suddenly appearing lifeforms all around you, do not hit them! - if you leave your lane, do so orderly - do all that at speeds far over 40km/h I think the "static objects" parts is not the hardest part on that list.RADAR/LIDAR are good at that. I imagine the "everything and everyone is moving in random directions" part makes things harder.