Try writing evented code in Python or Ruby. It’s very hard because most libraries in those languages block all over the place. There just isn’t much run in the

Try writing evented code in Python or Ruby. It’s very hard because most libraries in those languages block all over the place. There just isn’t much run in the middle between these paradigms. Any time you spin off a new thread or process, it’s going to eliminate that nice continuous call stack (though there has been some work on this). That’s not a JS issue but more an issue of async programming in general. I’d love to see JS unify web workers with BEAM-style lightweight, managed actors since they aren’t incompatible. In the meantime, I’ll take the minor pain around async for the massive performance boost relative to other scripting languages.