Another benefit is establishing team norms and best practices, which is also a goal of code review, but pairing accomplishes it in a bottom up way rather than a

Another benefit is establishing team norms and best practices, which is also a goal of code review, but pairing accomplishes it in a bottom up way rather than a heavy top down way. I've worked on teams where review was a very important part of our process and it was common for code to be under review for days or even longer.