I attended the talk Yaron gave so I have a little context - OCaml is definitely, definitely worth it, and I feel like I have a decent grasp of the language after only 3 weeks of working with it, to the point that I can make useful, large programs.<p>I&#x27;ve learnt Haskell in the past and it was slow primarily because Learn You a Haskell is I think poorly written.<p>Read Yaron&#x27;s book Real World OCaml. It&#x27;s great.