I understand that lisp has power but I remain unconvinced that power in any way correlates to writing better programs. A lot of the utility that e.g. static typ

I understand that lisp has power but I remain unconvinced that power in any way correlates to writing better programs. A lot of the utility that e.g. static typing provides is a sort of convention of how to write code such that we can then use tools to do the mundane work of verifying that our code is accurate or refactoring it. In other words, lack of power makes code note maintainable. I don't doubt lisp is fun and easy to write, but power doesn't have much say when it comes to refactoring. That's where convention wins out. How is refactoring 10k lines of lisp?