Oh, it's good for so much more. Just take this refactoring of a functional test library of mine: 1. https://github.com/haf/expecto/commit/e4f2ce3cc2b2cf3c848c5

Oh, it's good for so much more. Just take this refactoring of a functional test library of mine: 1. https://github.com/haf/expecto/commit/e4f2ce3cc2b2cf3c848c5e2a09ea9034d188e912 https://github.com/haf/expecto/commit/e4f2ce3cc2b2cf3c848c5e... 2. https://github.com/haf/expecto/commit/9f8380cdb17002e09ae169a0df394c869091b7e7 https://github.com/haf/expecto/commit/9f8380cdb17002e09ae169... 3. https://github.com/haf/expecto/commit/3fafd9ada4e932dcadc24a3fcb0b7098f36fbb20 https://github.com/haf/expecto/commit/3fafd9ada4e932dcadc24a... 4. https://github.com/haf/expecto/commit/0c243c9eb781e7527b0bd2357c1a867da196134d https://github.com/haf/expecto/commit/0c243c9eb781e7527b0bd2... 5. https://github.com/haf/expecto/issues/36 https://github.com/haf/expecto/issues/36 6. https://github.com/haf/expecto/commit/9284173599145a1bb08ee8ed7acd865dfa3c0429 https://github.com/haf/expecto/commit/9284173599145a1bb08ee8... Functional programming also makes for really smooth control flow and that's a huge part of programming. In short what it does, is give you the ability to compose and reason with your code.