Musk’s voice will become harder to ignore “I-Pencil,” the fable-like essay by the economist Leonard E. Reed, remains one of the best introductions to the free market. It shows the ways in which the mass production of even simple things – like the humble pencil – involves the work of numerous people, most of whom do not know each other and who are all motivated at some level by self-interest. Above all, Reed shows that this extremely complicated process occurs without someone planning it from