The internet is global, and its future is by no means written or spoken only in English. With the upcoming Intl.MessageFormat addition to JavaScript, we're making it easier than ever to write and maintain apps and systems that not only speak your language, but also the languages of your users. To do that, we're redefining how localisation really works, and building a system that's interoperable with all existing data formats, workflows and processes, as well as (hopefully!) all the ones we can't even imagine yet. Let me show you this new world, and where it might lead us.