I am of course quoting from a famous essay by Leonard Read, the economist in the 1950s, called "I, Pencil" in which he wrote about how a pencil came to be made, and how nobody knows even how to make a pencil, because the people who assemble it don't know how to mine graphite, and they don't know how to fell trees and that kind of thing.
Selle näite ma võtsin muidugi 1950-ndate kuulsa majandusteadlase Leonard Readi esseest "Mina, pliiats", kus ta kirjutas, kuidas pliiatsit tehakse ja kuidas keegi ei tea, kuidas pliiatsit teha, sest liinitöölised ei tea, kuidas kaevandada grafiiti, nad ei tea, kuidas langetada puid, ja nii edasi.