> there are thousands of developers here on this mailing list maintaining 
node code using callbacks.
But how is this different from "there are thousands Java and C projects, 
You can do whatever You want with it, why do You ever need another 
languages?"

I personally don't like to use control flow helpers, like asyncjs because 
it just partially solves the problem. Instead of callbacks You 
got state-machines. Instead of callbacks now You has to 
write state-machine for every single piece of logic in Your app.

That's the reason why I believe "heresy" technics like fibers and so on are 
interesting.
Because in some cases they allow You to get the best of the two world at 
the same time - simple async concurrency model and the simple, ordinary 
code.

Node core is fast, low level and simple - and it's ok. But isn't it good 
that we also have alternative high-level abstractions that can greatly 
simplify development in some cases?

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