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by fmap 3361 days ago
My point is that category theory is useful for discovering nice abstractions such as algebraic effects and handlers or Monads for that matter. It's like all math, just a clever way to write/solve problems...

As for the semantics of algebraic effects and handlers, if you are not really interested I won't bore you with a long winded explanation. Suffice it to say that you can get the advantages of Eff in Haskell by using free Monads (the syntax of Eff is nicer though).