> My threshold for what is safe is irrelevant >> There is ample space to fly right up to my door step without ever coming close to any person or vehicle You u

> My threshold for what is safe is irrelevant >> There is ample space to fly right up to my door step without ever coming close to any person or vehicle You used your threshold for safety as the basis of your argument. > what makes you think every possible item to be delivered would need to be accounted for in modeling a service like this? I think this because I highly doubt Amazon wants to make the move to drone delivery in order to move potato chips, or single video games, or movies which cost at most 70 bucks. The aim to automate delivery as a whole through drones, not automating special cases. We're not talking about a set of weights here. I gave the example of a single blu-ray player, which is a reasonable item for delivery. Even if you want to stay with your special case, dropping items from 20ft in the air, or lowering a drone with spinning propellers to street level, in a city is a issue. Companies don't like potential liability.