[sodapopcan]

I like dynamic typing too which, contrary to popular belief, doesn't mean I don't care about types. I may start using this when it is released, though, we shall see. Otherwise, don't worry, it will definitely be optional. Elixir is all about backward compatibility and not changing too much. There's an often-uttered reminder when proposals come up on the Elixir forums that there is very little chance there will ever be a v2.0. Anything's possible, of course, but it would be years away.