[marcosdumay]

> Not everything seeking concurrency is a web server.

Web servers should be overwhelmingly synchronous.

They are the one easiest kind of application to just launch a lot more. Even on different machines. There are some limits on how many you can achieve but they aren't anything near low. (And when you finally reach them, you are much better rearchitecting your system than squeezing a marginal improvement due with asynchronous code.)

There's a lot to gain from non-blocking IO, so you can serve lots and lots of idle clients. But not much from asynchronous code. Honestly, I feel like the world has gone crazy.