[jwr]

Elixir is a great tool for some applications, but one should always think carefully about what is the right tool for the job at hand. Elixir is not the only language that helps enormously with concurrent programming. Specifically, Clojure is very comparable in this regard, although it gives the programmer much more freedom. And then it has Clojurescript, which makes writing hybrid server/client apps much easier.

I've written large applications in Clojure/Clojurescript and I've seen/reviewed reasonably large code bases in Elixir, and while I would agree that Elixir is a very good solution for many problems, it is not a tool for everything.