It's important to know "enough" about the lower level details to accomplish the task. But the whole economic point of Divison of Labour[1] is that the effort i

It's important to know "enough" about the lower level details to accomplish the task. But the whole economic point of Divison of Labour[1] is that the effort is dispersed, no? Knowing "enough" means that, for example, I don't - use a page of Java to load two tables, - put their keys into assiciative arrays - loop through the arrays and build a list of unmatched keys . . .when a single SQL statement can give me the Venn diagram output of the two sets. (Really saw that in some code.) [1] https://en.m.wikipedia.org/wiki/Division_of_labour https://en.m.wikipedia.org/wiki/Division_of_labour