no odder than reverse cars which fortunately only tend to show up to car shows. throw in buses with full coverage wraps that can be anything from a zoo scene to a open vista. Even decorative signage at the road side needs to accounted for. There is so much we filter out automatically that we forget just how challenging coding it can be.

and still we are mainly just concentrating on on road experiences, surely DARPA has concerns wholly dealing with off road and unmarked terrain. it would be very interesting to see how one deals with a standard off road trails