Emergent peer programming is the best. I've done 2-3 instances of it over the last 3 years and it definitely felt like we truly moved mountains during those cou

Emergent peer programming is the best. I've done 2-3 instances of it over the last 3 years and it definitely felt like we truly moved mountains during those couple of hours. One time we wrote a quite complicated graph-based algorithm (as in, lots of bug potential, but it turned out bug free) and the other two times we fixed bugs that hounded us for weeks in just one session. I definitely feel like it works best in those situations when both people can complement each other somehow. If it's just a junior/senior person it will probably not be very useful for the senior person (note I mean a true junior here with little programming experience, not just some non-senior engineers).