You can annotate your types if you want and get a lot of editor benefits. Also, I don’t buy the “we need strong types for everything” argument, as optional typi

You can annotate your types if you want and get a lot of editor benefits. Also, I don’t buy the “we need strong types for everything” argument, as optional typing in Clojure, JavaScript, and now Ruby gives you lots of benefits without having to think all the way through the app’s architecture.