Vanessa: All computer code must be written by a pair of programmers working at a single workstation  This is needed to prevent programmers from writing idiosyncratic code that can be understood only by the original programmer  Jo: Most programming projects are kept afloat by the best programmers on the team, who are typically at least 100 times more productive than the worst
Since they generally work best when they work alone, the most productive programmers must be allowed to work by themselves
Olga and Kensuke are both programmers of roughly average productivity who feel that they are more productive when working alone. They have been assigned to work together at a single workstation.