Async or event library

[Kagamin via Digitalmars-d-learn]

On Friday, 6 May 2016 at 12:08:29 UTC, chmike wrote:
> In some applications and event types the synchronization 
> overhead is small compared to the benefit of executing tasks in 
> parallel on different cores.

GUI generates too many messages that are handled too fast - 
synchronization overhead would be too big. That's not counting 
concurrency bugs.