I had the impression that is a crucial aspect of the method. By starting from scratch each time, you avoid creating a chain of changes that may not be the small

I had the impression that is a crucial aspect of the method. By starting from scratch each time, you avoid creating a chain of changes that may not be the smallest / most efficient, because you didnt have the full context when you made the previous change. And if turns out that that was, indeed, necessary and the right thing to do, it’s still fresh in your mind to reimplement. (I have not tried this method myself yet)