Ty for this detailed answer next time I’m asked about this I will be more convincing for sure 
.
I have another question about the Haskell eco-system maturity. In the data/machine learning engineering field, we focus a lot on JVM languages and python due to the major tools and framework provided in those eco-system.
From my understanding, it’s the current meta of development to use those tools and framework to do stuff in the real world.
As for Haskell, myself being a newbe, I have not a single idea of what it looks like in real life. What do we do when we want to orchestrate job ? Test it ? Deploy it ? Multi threading ? Do we actually have some tools at our disposal ? Or maybe Haskell is so great that we don’t need any of those 
(no sarcasm intended) and therefore they don’t exist.
(Just noticed that your answer just above answers my last question 
sorry for the double question)