A few people have pointed out that it’s easy to throw out your code when you (a) have tests for it, and (b) only have three months invested in it. I agree with

A few people have pointed out that it’s easy to throw out your code when you (a) have tests for it, and (b) only have three months invested in it. I agree with both of those points, but want to tip my hat to a team that rewrites their code after three months. The reason some code bases can’t be rewritten after a few years is because when the code was only three months old, the team passed on the chance to rewrite it while it was still a tractable exercise.