You can always call a c program for something you absolutely need speed for though right?
https://github.com/elixir-lang/elixir/wiki/Interoperability-...
https://github.com/elixir-lang/elixir/wiki/Interoperability-...
I think that's a pretty major factor to avoid -- multicore processors are the immediate/commercial foreseeable future of CPUs, so its not inconsequential that Erlang/Elixir allow you to be able to use cheap processes in order take full advantage of this