It occurred to me recently that two of the conference talks that I consider the best I’ve ever written never really got a very wide audience, even by the admittedly low standards of my conference talks. And I also wanted to revisit them to see if I can improve the argument. This post comes from a talk called “The Road To Legacy is Paved With Good Intentions”, and here is the original talk video from WindyCityRails 2017. I’m fascinated by the concept of legacy code, and in particular h...