http://ezyang.tumblr.com/post/62157468762/haskell-haskell-an...
For more on purely functional parallelism, see Guy Blelloch's research (https://www.cs.cmu.edu/~guyb/research.html) and CMU's algorithms course (https://www.cs.cmu.edu/afs/cs/academic/class/15210-f11/www/r...) and parallel algorithms course (https://www.cs.cmu.edu/afs/cs/academic/class/15499-s09/www), and Manticore, a parallel SML (http://manticore.cs.uchicago.edu/).