I'm currently looking for an article from a professor or a haskell developer (can't remember which) discussing the difference between parallelism and concurrenc

I'm currently looking for an article from a professor or a haskell developer (can't remember which) discussing the difference between parallelism and concurrency. Can't find it, but I'll post these for now: http://www.danielmoth.com/Blog/threadingconcurrency-vs-parallelism.aspx http://www.danielmoth.com/Blog/threadingconcurrency-vs-paral... Its a worthy read and may change your mind at least a bit. Though overall, I agree that not all developers benefit from learning functional programming languages as the ones specified, I truly believe that most developers would benefit greatly. Anyway, if I find the article I'm telling you about i'll post it as well. EDIT: I believe this was it: http://ghcmutterings.wordpress.com/2009/10/06/parallelism-concurrency/ http://ghcmutterings.wordpress.com/2009/10/06/parallelism-co... EDIT 2: I also believe that most of these languages actually promise more. For example, one of the biggest promises Haskell gives is no side effects. Though this does have a mayor implications for concurrency/parallelism it also (in my opinion) provides safer, cleaner and easier to maintain code. (It does take a memory hit, I'll admit to that, but I personally prefer that safety). Erlang's biggest promise I believe is its fault tolerance. And over all, I honestly believe that functional programming puts you in a different mindset and once you get used to it (I'm still learning, but even then I find it mind opening) you see things clearer. But when it comes down to it, its impossible to be objective about this. However, I will objectively say, everyone should try at least one functional language, just to give you a different view of things :D .