Could anyone give some pointers on why the impure computations in Haskell are modelled as monads? I mean monad is just an interface with 4 operations, so what was the reasoning to modelling side-effects in it?
![Why are side-effects modeled as monads in Haskell?](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)
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