> Oddly, while parallelism didn't turn out to matter much, concurrency did This is true, but I don't think for the reason the author may think. Basically, para

> Oddly, while parallelism didn't turn out to matter much, concurrency did This is true, but I don't think for the reason the author may think. Basically, parallelism in a single process is hard as hell and nobody can do it reliably. On the other hand, concurrency is easy (mainly due to not sharing memory between threads). Basically we just achieved the parallelism we wanted by utilizing concurrency within individual processes, but the processes themselves are parallelized at the OS/hardware level.