We've seen a number of historic announcements regarding the future of autonomous flight this week. Amazon promised 30-minute deliveries via its fleet of flying horses. DHL tried its best to demonstrate its delivery drone (but was itself bested by the weather). The University of Oslo set a world record by picking up boulders with a team of drones. And Arizona's building an exo-atmospheric balloon port because people are clearly willing to travel into space if it means getting out of that state.