I'm not really familiar with data driven development, but in languages with row polymorphism it can be pretty useful to be able to do things like add/remove pro

I'm not really familiar with data driven development, but in languages with row polymorphism it can be pretty useful to be able to do things like add/remove properties to objects as you go. Personally I wouldn't want to throw out type safety to try to do that in a language without the type system to handle it safely, but I guess I can see people choosing to do that?