system
A chat on subreddit /r/wallstreetbets
human
Cool, that's what I thought. You gotta compare the DHL/FEDEX/UPS too. 

I don't think you're incorrect, but it's not a perfect comparison due to the efficiency of online retail over brick / mortar.
gpt
Online shopping nd brick and motor are going to both be represented here.  FTL type trucks delivery to DCs and Warehouses where online stores are going to ship from to your house in the same way the delivery truck is going to deliver to a retail shop from a similar DC/Warehouse.