According to all the anecdotes at my disposal, the Amazon last-mile delivery is strictly inferior to the incumbents, due in no small part to scheduling and path

According to all the anecdotes at my disposal, the Amazon last-mile delivery is strictly inferior to the incumbents, due in no small part to scheduling and pathing algorithms that make no accommodations for the biological functions or psychological needs of the human employees. Those gig workers will dry up immediately the instant a better job opens up, and the delivery infrastructure Amazon thought it had will turn out to be owned by someone else. If the robots aren't ready in time, they will fall on their face.