If anything Node is much more limited than the alternatives, both because of the language it uses, and because of limitations of the implementation, which basic

If anything Node is much more limited than the alternatives, both because of the language it uses, and because of limitations of the implementation, which basically (rather ugly hacks aside) doesn't scale at all beyond one core, and if any of your code turns out to be CPU bound, your performance goes right out of the window. Go and Erlang are much better both in the concurrency models they provide and in their performance and scalability. Not to mention they are real languages carefully designed over many years by talented language designers, not the result of unfortunate accidents of history hacked up in two weeks like JavaScript.