In Player Piano, everything is controlled by machines and computers and depends on productivity. The managers and engineers only create new programs for more productive production. Even the rates of production and consumption are calculated by a computer (EPICAC), which is seated in the large Carlsbad cavern system. The EPICAC computer even determines the people's careers and in this way their whole lives. It gives intelligence tests to everyone, and on the basis of their results it sorts people into two categories - suitable for university entering exams and suitable for 'work'. The university studies allow their graduates to be