> But everything you build is very brittle in the face of changing requirement. It's supposed to be 'brittle', in the sense that the compiler verifies your cod

> But everything you build is very brittle in the face of changing requirement. It's supposed to be 'brittle', in the sense that the compiler verifies your code and if the logic changes, the compiler complains. Everything else is a bug. > But, if you have business people tell you, you have to pass some additional information through your system without doing anything to it, and you answer, I have to refactor all my type definitions, then you have some explaining to do. And the explanation is that this is software development, there is no "without doing anything to it". If there's a new requirement I need to adapt the code - take it or leave it, I'm not a wizard. And yes, I have done that already in some form and it was almost always received properly. 'Business people' sometimes have no understanding of software development. The logic "code changes -> only dynamic typing" isn't valid, in my opinion.