Well, BEAM has supervisors, supervision trees, loads of support for fault tolerance, automatic usage of multiple cores, and it easily scales to multiple nodes as well. Simple actor-based concurrency is possible in many languages.<p>Also, even if Elm were to get all that stuff, it&#x27;d still be compiling to JavaScript and aimed at web apps.<p>(Don&#x27;t get me wrong, I&#x27;m super excited to see Elm getting support for message-passing lightweight processes. I love Elm, have used it myself for several projects, and think this looks great for web development. I just want something like Elm, but specifically geared towards large-scale backend services instead of front-end apps.)