[deadgrey19]

Thanks for the very considered response. I'm pretty interested in this because some of my recent work has been about designing I/O APIs/abstractions.

My reaction is due to my experience which is that threaded programming is something that's very hard to get right and especially to maintain. Async programming cleans up the threading and makes it kind of implicitly cooperative.

I was involved in a big move of some core infrastructure from a multi-threaded design over to a pipeline of async style apps. The result was a huge boost in productivity and debugability which worked out really well for the company.