> For ordinary business software, where the software's focus is on data-modelling and data-transforming-processes, so all these programs basically just pass gia

> For ordinary business software, where the software's focus is on data-modelling and data-transforming-processes, so all these programs basically just pass giant aggregates of business data around, so strong-typing is essential to ensure we don't lose any properties/fields/values as these aggregate objects travel through the software-proper. There is also ways of dealing with this in dynamic languages. For example, Clojure has clojure.spec that achieves the same results, but without relying on strong typing. In the end, it's all tradeoffs. There is no "one solution" that will be perfect for everything.