I understand it more like: Go force one concurrency model on me (like Node.js or Erlang), and Swift is a general purpose language that --over time-- will allow

I understand it more like: Go force one concurrency model on me (like Node.js or Erlang), and Swift is a general purpose language that --over time-- will allow me to use any kind of concurrency model (like C/C++/Haskell/etc.). Oh, and syntax-wise I like both of 'm. I was not referring to syntax much, mostly to capabilities.