That's a good way to describe the feel. I think it only truly gets ugly when you do something like Arc<Mutex<Box<HashMap<String, Vec<String>>>>>. But the beauty

That's a good way to describe the feel. I think it only truly gets ugly when you do something like Arc<Mutex<Box<HashMap<String, Vec<String>>>>>. But the beauty of "(almost) everything is an expression" makes up for that.