Sure, very little to disagree with, and moving on is fine, but I do want to make one small note: the reason I say threads are easier is that in almost every case you can take a multi-process model and turn it into an efficient multi-thread model with minimal effort. Threads give you more tools, and a lot of those tools are slow. And if a type of parallelism won't work with threads, it very likely won't work with anything else.