The problems with the major hub to the delivery point are the same as some of those identified in the article: drones currently in operation don&#x27;t have much carrying capability, and compensating for that with significantly more drones <i>adds</i> cost over a truck. Even if you scale your drones up to truck size and don&#x27;t have any range limitations, you&#x27;re carrying packages a similar distance whilst fighting gravity all the way. And if bottlenecks with sorting at each end and last mile are unchanged, the extra cost of cutting out trucks sat in traffic in the middle of the supply chain might make surprisingly little distance to delivery times.<p>Getting the FAA to approve airways for long distance autonomous commercial cargo transport without prohibitive fees sounds like a challenge too...