Before the Industrial Revolution, most goods were produced by hand by a single person. Master craftsmen labored over their work, producing a finished product they could be accountable for and proud of. Mass-production led to the assembly line, in which each person was assigned a step, and their job was to do that step over and over again with the resulting in many finished products. It’s the reason a car can be built in a single automobile factory assembly line every 20 minutes. Although it produces...