I agree that Node doe not own evented I/O, my point was more that if you care about concurrency, parallelism, evented io, you should work in communities that care about those things and build tools around them. Ruby as a community cares more about Rails than evented I/O. Node is purely evented I/O, so that's basically ALL they care about. I guess Python is probably more in between.

I didn't mean to say node owns evented I/O, just that their whole community embraces it.