Somehow we need to stretch this metaphor to account for the fact that the book rental service can only work by sending millions of robots into all the free libraries every day, taxing the resources of the free library with all the traffic.
And the resources in the paid book store are allowed to lie and manipulate with barely any warning (maybe 0.0001pt font underneath the store sign), while the store tells you everything is trustworthy and absolutely reliable.
Somehow we need to stretch this metaphor to account for the fact that the book rental service can only work by sending millions of robots into all the free libraries every day, taxing the resources of the free library with all the traffic.
And the resources in the paid book store are allowed to lie and manipulate with barely any warning (maybe 0.0001pt font underneath the store sign), while the store tells you everything is trustworthy and absolutely reliable.