Rust has an amazing model for how to deal with errors that basically stops you from ever ignoring an exception, what they call an error. Rust is adding two usizes and er converting the result to a string. And then again, e p three is taking care of returning it. So the powerful thing about rust, beyond opposit, it's faster. But there are other advantages that you get, which are perhaps less obvious. A, one of them is the recursion without a performance penalty. That means that pidantic a cor date of adidation is truly recursive all the way down. It allows you to build effectively any crazy combination of different validatos into each other,. Think of them