> Let's start with the economics. Since we are employing two programmers to do work on the same keyboard at the same time, the output of pair programming must b

> Let's start with the economics. Since we are employing two programmers to do work on the same keyboard at the same time, the output of pair programming must be greater than 2x the output of a single programmer to make sense. this is immediately wrong. since you're using only one computer and desk, the output can break even at less than 2x/pair, since you're not paying maintenance for double the space. the rest is absolutely missing any data backing it up, so it's completely pointless to argue about.