Thanks. I mean in julia you can use traits for that, but it's not built in (yet). Though there's no speed penalty, as you probably know. So this is about exten

Thanks. I mean in julia you can use traits for that, but it's not built in (yet). Though there's no speed penalty, as you probably know. So this is about extending types, but it sounds like swift is strictly "better" then, since it's also statically checked? Or is there something that multiple dispatch gives that substantively better? I'm trying to get a feel for if the Swift for Tensorflow project will afford the same kind of composability, while keeping static type checking, modules etc (assuming they work out cross module code specialization, which I think is happening).