Exactly. This stuff has been known about for a long time. It was just kind of ignored and you kinda hoped your library might have something to deal with it (boost, win32, pthread, etc). Then each one acted differently on different platforms or with each other. Some of the std lib is starting to have things we need. But now I have to deal with things in the crt and stdlib that actively break multi threading. Mutexes, semaphores, flags, pulsing, etc is not exactly new patterns. Real mess and you have to understand it too deeply for it to be meaningful to more people. It is why things like promise/async/await are very popular with javascript and their libraries. As it looks like multithreaded programming with a decently clear interface as to what it is going on.