&gt;  This is wonderful news for systems like Node.js whose concurrency model is non-existent and whose idea of having a fun time is throwing promises into the future and hoping that nobody breaks them.<p>Oh so true. I wish I learned Erlang (and to a lesser extent Go) much earlier in my career after wasting so much time with Node. I now laugh when I see people on Twitter&#x2F;Reddit talk about Node&#x27;s concurrency as a reason to learn it over other languages.