[rdtsc]

I spent last night looking at Elixir and I really like it (at least as far as I could see in one evening).

I like Erlang and I wouldn't say Elixir is there to replace it. I see a use of Elixir for scripting or creating DSL. Also it gets a huge bonus by running on BEAM. As far as internal design (and I am speaking as an amateur here), BEAM is far superior to JVM from the reliability and concurrency point of view. So having Elixir around is helping Erlang team, kind of like many see Scala and Clojure as a way to make the Java ecosystem appealing and exciting again.