Types can get complicated. To an extent that code gets extremely overcomplicated by using a typed language. Typed languages encourage to use many layers of DTOs

Types can get complicated. To an extent that code gets extremely overcomplicated by using a typed language. Typed languages encourage to use many layers of DTOs and models. With dynamic languages you can just code, without being held back by a OOP type system, but it can get very complicated to understand what the typed of you parameters and return values actually are. Typescript gives you the best of both worlds.