Well think about writing functions inside a repl or interactive environments like jupyter notebooks or just plain scripting. Enforcing type annotations add litt

Well think about writing functions inside a repl or interactive environments like jupyter notebooks or just plain scripting. Enforcing type annotations add little value in those cases and end up making the language ill suited for such use cases. Whole form type inference is actually a super power that allows for writing extremely expressive code without giving up type safety.