I imagine in the end not much old code was left, but if his initial code was well structured I can also see how it helps to not start from a blank slate. The st

I imagine in the end not much old code was left, but if his initial code was well structured I can also see how it helps to not start from a blank slate. The structure you see in the names of files, classes etc. can make it easier to keep a mental model of the app that you’re building.