The document discusses pair programming and compares it to solo programming. Solo programming involves a single person taking on all development roles alone, which can lead to high error rates, low productivity, and frustration. Pair programming involves two developers sharing a workstation, with one typing - the "driver" - while the other reviews the work and identifies errors or opportunities - the "navigator." Benefits of pair programming include learning from each other, improved quality through peer review, and increased enjoyment of the work. While not suited to all people, pair programming generally results in higher productivity and more reliable code compared to solo programming.