Your assertion is essentially that an example of reading and writing from/to a file descriptor shows all needed for all aspects of a networked application. I t

Your assertion is essentially that an example of reading and writing from/to a file descriptor shows all needed for all aspects of a networked application. I think that is absurd. And unless you have a multithreaded multiuser shell there is not even a really way to empirically test your program without going through absurd hoops. And in fact if you run an old enough version of Haskell, or non-ghc it might not be multithreaded/evented. Your indinctment that the reason people aren't using your language of choice as lazy is ironically lazy. There are plenty of practical reasons for using different languages and tools.