The problem is, simplicity is not an objective measure. Take monads, for example. To most developers these are a foreign and possibly scary concept. Once you un

The problem is, simplicity is not an objective measure. Take monads, for example. To most developers these are a foreign and possibly scary concept. Once you understand them, however, they seem ridiculously simple. This is one of the problems with monad tutorials -- they are so simple there is almost nothing there. I know I spent a long time trying to find a "deep" concept when learning monads, before I realised there isn't one. Building a system with monads, if you understand them, is simple. You can write together components easily, and have concurrency, logging, error handling and more all nicely abstracted away. But is this a simple system? It depends entirely on your background.