Why specialize them? If SpaceX can land a rocket on a drone-ship, the next step would be to land a drone inside a 20-foot shipping container. Then every conta

Why specialize them? If SpaceX can land a rocket on a drone-ship, the next step would be to land a drone inside a 20-foot shipping container. Then every container ship becomes an aircraft carrier, capable of carrying thousands of drones. The merchantmen become their own escorts.