&gt; Haskell is excellently suited for solving extremely complex problems and why it&#x27;s so desirable for concurrency and parallelism tasks.<p>As is the JVM (and most languages running on it). Not only that, but the JVM has actually a proven track record of being good and performant at it. And you can solve these problems with pretty much the language of your choice.<p>What makes you think Haskell is well suited for it? Immutability? This is available in a lot of languages (and for languages where it&#x27;s not enforced, simple programmer discipline and code reviews address it).