[anonymous23801]

I don't think Go or Rust provides anything similar to what you have in Erlang/Elixir. I've done a lot of Ruby and then while learning Haskell and Elm has been a paradigm change with their type systems, Elixir/Erlang felt like a much bigger step in terms of a different required way of approaching problems.

It's not that it's functional (that's completely secondary in Erlang) but its fault tolerance primitives (processes, pids, mailboxes, monitors and links) and the OTP abstractions (GenServers, Supervisors, etc).

You learn to think in terms of distributed systems and think about fault tolerance in a way you cannot in other languages as they don't provide the primitives. It's quite a big leap and it takes time to sink in.