Err, they're different kinds of boundaries. Photographing every street requires few new techniques. Mostly people didn't expect it could happen quickly or cos

Err, they're different kinds of boundaries. Photographing every street requires few new techniques. Mostly people didn't expect it could happen quickly or cost-effectively, or didn't expect it would be worthwhile. Arguably, it's still a neat-o factor rather than a core value. Drone delivery requires a significant number of new techniques.