It sounded like they were gunning to shave the maximum in response time from their HTTP APIs. From my understanding, Elixir&#x2F;Erlang probably wouldn&#x27;t be able to match an optimized Go process in raw efficiency. I get the sense that scaling horizontally is the big draw of the Erlang VM, not so much raw responsiveness.<p>If simplicity were the primary concern, they could have stuck with Python. You do get a much more distributed element with Elixir&#x2F;Erlang (which certainly helps with volume), but I&#x27;m not sure they&#x27;d reach that 10ms response time average with it.